August 2026 is a great time to upgrade your Traxxas Slash’s power system, but the battery bay on this truck is notoriously unforgiving when it comes to sizing, connector compatibility, and discharge headroom. We researched and evaluated 7 options from OVONIC so you can skip the guesswork and spend your weekend bashing instead of returning batteries.

1

OVONIC 2S 7200mAh 7.4V 130C LiPo Battery with XT60

OVONIC
9.8 /10
HNL Score
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This OVONIC 2S LiPo battery delivers exceptional performance for RC vehicles with a 130C discharge rate, proven low internal resistance, and reliable capacity that often exceeds rated specs. Ideal for serious RC enthusiasts who demand high-drain performance at a competitive price.
Pros & Cons

Pros

  • Excellent discharge rate (130C) delivers consistent power for demanding RC applications
  • Real-world capacity testing confirms honest 7200mAh rating with margin above spec
  • Impressive low internal resistance (4-5mOhm) ensures minimal voltage sag under load
  • Two batteries included, providing value and redundancy for RC pilots
  • Hard case included protects investment during storage and field use

Cons

  • Requires OVONIC-branded charger (sold separately) for optimal safety and performance
  • 130C rating demands experienced RC users to avoid safety issues with improper handling
  • Weight and dimensions may require compatibility verification with smaller RC platforms
Detailed Review

The OVONIC 2S 7200mAh 7.4V 130C LiPo battery is engineered for RC enthusiasts who demand high performance from their vehicles. Whether you fly FPV drones, race electric cars, or operate RC boats and trucks, this battery delivers the sustained power and reliability needed for serious hobby use.

What sets this battery apart is its combination of proven specifications and real-world performance. With a 130C discharge rate, it provides the extreme current delivery required for high-speed applications. Multiple user tests confirm internal resistance in the 4-5mOhm range, translating to minimal voltage sag even during aggressive acceleration or sustained high-throttle maneuvers. The capacity testing consistently shows actual output above the rated 7200mAh, indicating conservative factory specifications.

The hard case construction is a notable quality touch often missing at this price point. The durable housing protects your investment during transport to the field and prevents accidental damage in your battery storage box. Coupled with ISO international certification and premium LiCoO2 materials, this battery is built to survive the demanding cycles of competitive RC hobby use, with rated lifespan exceeding 350 charge cycles.

The main consideration is charger compatibility. The battery requires an OVONIC-branded charger for safe operation (the Mate 1 or X1 models). Additionally, the 130C rating demands respect, proper balance monitoring, and experienced handling to prevent safety incidents. For users upgrading from mid-range batteries, this represents a significant performance step that requires familiarity with high-discharge LiPo safety protocols.

The verdict: This battery delivers genuine high-performance specifications with honest capacity ratings and proven low resistance in a well-protected package. For experienced RC users seeking reliable extreme-performance power at competitive pricing, the two-pack format provides excellent value and practical redundancy for weekend sessions.

Specifications

Electrical Specifications
Voltage: 7.4V nominal (2S configuration)
Capacity: 7200mAh (actual tested output often exceeds this)
Discharge Rate: 130C continuous
Cell Type: Lithium Polymer (LiCoO2 chemistry)
Charging Connector: JST-XHR-3P
Discharging Connector: XT60 to TRA adapter included

Physical Specifications
Dimensions: 139.50 x 47.50 x 26.00 mm (5.49 x 1.87 x 1.02 inches)
Weight: 330g per battery (0.73 lbs)
Case Type: Hard protective case
Package Contents: 2 batteries, brand stickers, user manual
Cycle Life: 350+ charge cycles rated

Performance Metrics
Internal Resistance: 4-5mOhm (verified by users)
Runtime Advantage: 12% longer than standard alternatives
Charging Time: 6% faster than standard
Weight Advantage: 5% lighter than comparable batteries

Buyer Guide

Is This Battery Right for You?
This battery is ideal for experienced RC users operating high-performance vehicles. If you currently use 50-80C batteries and want more power and lower voltage sag, this is a natural upgrade. The 130C rating suits competitive racing, fast-flying FPV drones, and demanding 3D flying applications.

Compatibility Check
Verify your RC vehicle can safely handle 130C discharge. Standard ESCs (electronic speed controllers) can manage this, but check manufacturer specs. The XT60 connector with included TRA adapter covers most common platforms. Verify your frame can accommodate a 330g battery.

Charger Requirement
You must use an OVONIC Mate 1 or X1 dedicated charger. Standard chargers may not provide optimal balance charging for these high-performance cells. Factor the charger cost (typically $40-70) into your total investment if you don't already own an OVONIC charger.

Safety Considerations
High-discharge LiPo batteries demand respect. Never leave charging unattended, use a fireproof charging bag, monitor cell voltage regularly with a meter, and never discharge below 3.0V per cell. Improper handling creates fire risk. If you're new to high-performance batteries, start with manufacturer guidance and community resources.

2

OVONIC 6500mAh 7.4V 2S LiPo Battery 130C Discharge

OVONIC
9.7 /10
HNL Score
Our score runs from 0 to 10 and is calculated from public product data such as ratings, review volume, price, and listed specifications. No manufacturer or seller can influence it. Learn more ›
The OVONIC 6500mAh 7.4V LiPo battery delivers reliable performance for RC enthusiasts with a 130C discharge rate, ISO certification, and proven durability across multiple charge cycles. Ideal for RC cars, trucks, drones, and boats, this pack offers excellent value with fast charging times and strong customer feedback on longevity.
Pros & Cons

Pros

  • Exceptional value for the price with high discharge rate and substantial capacity
  • Proven durability in real-world conditions with users reporting consistent performance over months
  • Fast charging time and lighter weight compared to competing models in the category
  • Includes two batteries, doubling your runtime without additional purchase
  • Fits most popular RC models including Traxxas Stampede and Slash platforms

Cons

  • Fit can be snug in some Traxxas vehicles, requiring careful installation
  • Requires OVONIC dedicated charger for optimal performance and safety
  • Weight of 320g per battery may not be ideal for lightweight racing drones
Detailed Review

The OVONIC 6500mAh 7.4V LiPo battery is purpose-built for RC enthusiasts seeking reliable, high-performance power without premium pricing. This two-pack delivers exceptional value for hobbyists running multiple vehicles or wanting backup batteries for extended sessions. Whether you're racing Traxxas buggies, flying drones, or piloting RC boats, this battery provides the discharge rate and capacity needed for responsive, sustained performance.

What sets this battery apart is its engineering focus on real-world durability. The 130C discharge rate ensures powerful acceleration, while the premium LiCoO2 materials support 350+ charge cycles. Users consistently report that these batteries maintain strong performance over months of regular use, even when storage discipline is lacking. The 12% runtime improvement and faster charging times mean more playtime and less downtime between sessions.

Build quality reflects OVONIC's ISO international certification, addressing safety concerns common in budget LiPo batteries. The hard case included with the pack protects against physical damage and provides convenient storage. At 320g per battery, the weight is reasonable for most RC vehicles, though users with lightweight racing platforms may notice some impact on handling.

The primary consideration is compatibility. While the batteries fit most RC platforms, some Traxxas models like the Stampede and Slash require careful installation due to snug fitment. Additionally, using the OVONIC dedicated charger (sold separately) is recommended to maximize battery lifespan and ensure safety during charging.

The OVONIC 6500mAh battery represents smart spending for RC hobbyists. You get proven durability, strong performance, and two batteries for the price, making it an easy choice for building a reliable RC battery collection.

Specifications

Battery Specifications

Voltage: 7.4V (2S configuration)
Capacity: 6500mAh
Discharge Rate: 130C
Chemistry: Lithium Polymer (LiCoO2)
Dimensions: 139.5 x 47.5 x 26.0 mm
Weight: 320g per battery
Charging Connector: JST-XHR-3P
Discharge Connectors: XT60 and XT60 to TR adapter
Package Contents: 2 batteries, hard case, brand stickers, user manual
Cycle Life: 350+ charge cycles

Compatibility Guide

Recommended Vehicles

RC Cars: Traxxas Stampede, Slash, Bandit, Rustler, and compatible 2S LiPo platforms
RC Trucks: Most 7.4V 2S compatible models
RC Drones: Quadcopters and multirotors supporting XT60 connectors
RC Boats: Speedboats and larger watercraft with 7.4V power systems
Other: HPI Racing vehicles, Axial crawlers, and custom builds

Note: Verify your vehicle's voltage and connector type before purchasing. The XT60 connector can be adapted to TR connectors using the included adapter. Always use an OVONIC dedicated charger for safe charging.

3

OVONIC 2S 6000mAh 7.4V 130C LiPo Battery with Dean

OVONIC
9.8 /10
HNL Score
Our score runs from 0 to 10 and is calculated from public product data such as ratings, review volume, price, and listed specifications. No manufacturer or seller can influence it. Learn more ›
This OVONIC 2S LiPo battery delivers 6000mAh capacity with a 130C discharge rate, making it ideal for RC car bashing, drones, and high-performance applications. Reviewers praise its true capacity and excellent runtime at a competitive price, though the 130C rating may be optimistic for extreme racing use.
Pros & Cons

Pros

  • Verified true capacity without the padding common in budget alternatives
  • Excellent runtime and responsive throttle feel praised by multiple reviewers for bashing and recreational use
  • Faster charging and lower internal resistance compared to similar compact batteries
  • Works reliably with both standard chargers and advanced balance chargers
  • Outstanding value: delivers performance comparable to premium brands at a fraction of the price

Cons

  • 130C discharge rating appears overstated; realistic performance is lower, making it better suited for bashing than competitive racing
  • Large and heavy at 315g, so compatibility requires careful verification against your specific RC vehicle's battery compartment
  • Requires a quality charger to realize full potential; basic chargers may not optimize charging time or battery longevity
Detailed Review

The OVONIC 2S 6000mAh 7.4V LiPo battery is a workhorse pack designed for RC enthusiasts who prioritize runtime and power over lightweight racing performance. Whether you're bashing an RC truck, powering a drone, or fueling a remote control boat, this pack delivers the capacity and current output needed for extended, energetic sessions. The inclusion of two batteries means you can rotate packs and keep playing while one charges.

Performance highlights include verified true capacity, responsive power delivery, and notably quick charging times. Reviewers consistently report strong runtime and the ability to maintain punch throughout discharge cycles. The pack charges reliably on both basic and sophisticated chargers, with balance chargers correctly recognizing the 2S cell architecture. The 130C rating, while impressive on the spec sheet, appears to be a marketing figure; real-world discharge behavior suggests capability closer to 80-100C, which is still aggressive and more than sufficient for high-performance RC applications outside competitive racing.

Build quality reflects OVONIC's ISO certification and premium materials. The hard protective case prevents damage and simplifies storage, while the dual connector system (JST-XHR for charging, Dean-style for discharge) accommodates a wide range of RC platforms. At 315 grams, this battery is substantially heavier than compact racing packs, a tradeoff that delivers capacity but requires careful fit verification in smaller vehicle frames.

The primary consideration is size and weight compatibility. If your RC vehicle was designed for lightweight or compact packs, this 139 x 48 x 26mm battery may not fit. Additionally, maximizing this battery's potential requires a capable charger; entry-level chargers lack the precision to fully optimize charging speed and cycle life. For anyone with adequate space, a quality charger, and a need for extended runtime over minimum weight, this battery represents excellent value.

Verdict: A genuinely capable, well-built LiPo battery that delivers honest performance at a price point well below premium competitors. Best suited for recreational bashing, exploration flying, and general-purpose RC use where runtime matters more than shaving grams. Recommended for hobbyists seeking true capacity and reliable power without premium brand pricing.

Specifications

Battery Specifications

Capacity: 6000 mAh | Voltage: 7.4V (2S1P) | Discharge Rate: 130C | Cell Type: Lithium Polymer (LiCoO2) | Dimensions: 139.5 x 47.5 x 26.0 mm (5.49 x 1.87 x 1.02 in) | Weight: 315g (0.69 lb) | Charging Connector: JST-XHR-3P | Discharge Connector: Dean-style T | Package: Hard protective case | Cycle Life: 350+ cycles | Unit Count: 2 batteries included

Buyer Guide

Is This Battery Right For You?

Choose this pack if you own RC vehicles with adequate battery compartment space and prioritize extended runtime for recreational driving, racing practice, or aerial exploration. The 6000mAh capacity suits mid-to-large RC cars, trucks, heavier drones, and RC boats. Verify dimensions against your specific vehicle before purchasing.

Charger Requirements

Use OVONIC's dedicated charger, or invest in a quality third-party balance charger such as Team Orion or iCharger models. Basic chargers will work but may not optimize charging speed or battery longevity. Avoid cheap, unbranded chargers.

Realistic Expectations

Expect strong runtime and responsive power suitable for bashing, exploration, and casual high-performance use. The advertised 130C rating should not be relied upon for extreme racing applications; treat actual performance as 80-100C equivalent. This battery excels as a volume pack for weekend sessions, not as a premium race battery.

4
Highest rated

OVONIC 6000mAh 80C 2S 7.4V Lipo Battery 2-Pack

OVONIC
9.8 /10
HNL Score
Our score runs from 0 to 10 and is calculated from public product data such as ratings, review volume, price, and listed specifications. No manufacturer or seller can influence it. Learn more ›
This OVONIC 6000mAh 7.4V Lipo battery 2-pack delivers reliable power for RC vehicles with an 80C discharge rate, ISO certification, and durable hard cases. Ideal for hobbyists running 1:8 scale RC cars, planes, boats, and drones who want extended runtime and dependable performance.
Pros & Cons

Pros

  • Excellent capacity and discharge rate suitable for demanding RC applications
  • ISO certification and premium materials provide peace of mind for safe operation
  • Hard case packaging significantly extends battery lifespan and durability
  • Two-pack value offers better economics than single battery purchases
  • Proven reliability backed by strong customer ratings and positive reviews

Cons

  • Requires OVONIC-branded charger for optimal performance, not included in package
  • Dean connector compatibility may require adapter for some older RC models
  • 6000mAh capacity limits runtime for high-drain applications beyond 15-20 minutes per charge
Detailed Review

The OVONIC 6000mAh 2S 7.4V Lipo battery 2-pack is engineered for RC enthusiasts who demand reliable, consistent power across multiple platforms. Whether you run 1:8 scale RC cars, airplanes, helicopters, or boats, this two-battery bundle ensures you can keep your hobby in motion without extended downtime between charges.

What sets this battery apart is the combination of solid specifications and real-world refinements. The 80C discharge rate delivers sustained power for aggressive acceleration and dynamic maneuvers, while the 6000mAh capacity provides approximately 12% longer runtime than comparable options. Premium LiCoO2 materials and ISO international certification mean you're investing in safety, not just raw power. The hard case packaging protects against physical damage and extends the battery's cycle life to over 350 charges, translating to years of reliable service.

Build quality is evident in every detail. The batteries weigh 276g each and measure 138.84 x 46.74 x 25.25mm, fitting snugly in most RC frames without excessive bulk. The Dean-Style T connectors provide secure connections and work across virtually all modern RC platforms. Fast charging capability and reduced internal resistance mean less wasted energy and quicker turnaround between sessions.

One practical consideration is that you'll need an OVONIC-dedicated charger (sold separately). This ensures optimal charging profiles and protects your investment, but it's an additional cost to factor in. For certain legacy RC models using different connectors, you may need a simple adapter, though most current platforms work seamlessly out of the box.

For RC hobbyists seeking balanced performance, safety, and durability at a competitive price point, the OVONIC 6000mAh 80C 2S battery 2-pack delivers clear value. The combination of hard case protection, proven cycle life, and generous capacity makes this an excellent choice for both weekend flyers and dedicated RC enthusiasts.

Specifications

Battery Parameters

Voltage: 7.4V (2S Lipo)
Capacity: 6000mAh
Discharge Rate: 80C
Material: Lithium Polymer with LiCoO2 chemistry
Charging Connector: JST-XHR-3P
Discharging Connector: Dean-Style T

Physical Specifications

Dimensions: 138.84 x 46.74 x 25.25mm (L x W x H)
Weight per battery: 276g (0.6 lb)
Package: Hard case protection included
Cycle life: 350+ charge cycles

Package Contents

Quantity: 2x OVONIC 6000mAh 7.4V Lipo batteries
Accessories: 2x brand stickers, user manual
Charger: Not included (OVONIC Mate 1 or X1 recommended)

5

OVONIC 2S 7.4V 3500mAh 120C LiPo Battery

OVONIC
9.4 /10
HNL Score
Our score runs from 0 to 10 and is calculated from public product data such as ratings, review volume, price, and listed specifications. No manufacturer or seller can influence it. Learn more ›
The OVONIC 2S HardCase LiPo battery delivers 3500mAh capacity with a punchy 120C discharge rate, ideal for high-performance RC cars, drones, and helicopters. Its ISO-certified construction and 450-cycle lifespan make it a reliable choice for serious hobbyists seeking consistent power and durability.
Pros & Cons

Pros

  • Exceptional 120C discharge rate enables peak performance in racing and aggressive flying applications
  • ISO certification and premium materials provide confidence in safety and build quality
  • Two batteries included offer excellent value and reduce downtime during extended sessions
  • Lower internal resistance translates to less heat generation and improved efficiency
  • Compact dimensions fit most modern RC platforms without requiring modification

Cons

  • Requires OVONIC-brand chargers for safe operation, limiting flexibility with third-party equipment
  • 7.4V nominal voltage limits compatibility to 2S-capable RC models only
  • At 175g, heavier than some ultra-lightweight alternatives, which may impact flight characteristics
Detailed Review

The OVONIC 2S HardCase LiPo battery is purpose-built for hobbyists who demand sustained high performance. This 7.4V, 3500mAh pack with 120C discharge capability targets RC car racers, drone pilots, and helicopter enthusiasts who need reliable power delivery and extended runtime between charges.

The standout feature is the 120C discharge rating, which ensures snappy throttle response and consistent power under load. Paired with premium LiCoO2 chemistry, users can expect 12% longer runtime and faster recharge cycles compared to standard offerings. The included pair of batteries eliminates the need for additional purchases, making it practical for back-to-back flying or racing sessions.

Build quality is solid thanks to ISO international certification and the HardCase design, which protects cells from impact during transport and storage. The 175g weight is competitive for a 3500mAh pack, and the 5.0mm Bullet Dean-Style connector ensures broad compatibility across platforms. Dimensions of 95.8 x 46.5 x 22.3mm keep the profile compact for most applications.

The main limitation is charger compatibility: OVONIC recommends using their dedicated chargers (Mate 1, X1, X4, or D15) to ensure safe charging and battery longevity. This reduces flexibility if you prefer using existing chargers. Additionally, the 7.4V format restricts use to 2S-compatible equipment, so verify your RC platform supports this voltage.

Overall, this battery pack delivers excellent value for serious hobbyists. With 450 recharge cycles, strong discharge performance, and proven safety certifications, it's a smart investment for consistent, dependable power in RC racing, drone racing, and helicopter applications.

Specifications

Electrical Specs: Voltage: 7.4V nominal (2S1P configuration). Capacity: 3500mAh. Discharge Rate: 120C constant. Chemistry: Lithium Polymer (LiCoO2).

Physical Specs: Dimensions: 95.8 x 46.5 x 22.3mm (L x W x H). Weight: approximately 175g. Connector: 5.0mm Bullet Dean-Style T-plug. Case Type: HardCase.

Performance: Cycle life: 450 full charge-discharge cycles. Runtime improvement: +12% vs. standard packs. Charge time: -6% faster. Internal resistance: -4% lower. Weight: -5% lighter than comparable alternatives.

Package Contents: 2x OVONIC 2S LiPo batteries, 2x brand stickers, user manual. Certification: ISO international quality standards.

Buyer Guide

Who Should Buy This: RC car racers, FPV drone pilots, helicopter enthusiasts, and RC airplane flyers seeking reliable, high-discharge batteries. Best suited for users with OVONIC-compatible chargers or those willing to purchase them separately.

Compatibility Check: Verify your RC vehicle accepts 2S (7.4V) batteries and supports 5.0mm Bullet Dean-Style connectors. This battery is not compatible with 3S or 1S systems. Contact the manufacturer if unsure about your equipment.

Charger Requirements: Use OVONIC Mate 1, X1, X4, or D15 chargers for optimal safety and battery lifespan. Third-party chargers may not provide proper balance charging or cell monitoring.

Maintenance Tips: Store batteries in a cool, dry place at partial charge (around 50%) when not in use for extended periods. Inspect connectors for corrosion before each use. Follow the included user manual for safe handling and charging protocols.

6
Currently unavailable

OVONIC 2S LiPo Battery 7200mAh 7.4V 130C RC

OVONIC
9.7 /10
HNL Score
Our score runs from 0 to 10 and is calculated from public product data such as ratings, review volume, price, and listed specifications. No manufacturer or seller can influence it. Learn more ›
The OVONIC 2S LiPo delivers exceptional performance and reliability for RC vehicles, offering 350+ cycle life, faster charging, and superior run times compared to competing brands. Ideal for RC car, truck, drone, and boat enthusiasts seeking premium batteries at competitive pricing.
Pros & Cons

Pros

  • Exceptional value, delivering performance equal to premium brands at half the cost
  • Proven reliability with consistently excellent customer satisfaction across multiple RC platforms
  • Robust EC5 connectors with reinforced corner support prevent crimping and ensure longevity
  • Extends session duration to 25-45 minutes depending on vehicle load
  • Package includes two batteries, hard case, and stickers for immediate use

Cons

  • Requires OVONIC dedicated charger (sold separately) for optimal safety and performance
  • Limited to 2S voltage configuration, not suitable for vehicles requiring higher voltage packs
  • Capacity and discharge rate may limit use in extreme high-performance racing applications
Detailed Review

The OVONIC 2S LiPo Battery is a high-performance rechargeable power solution designed for RC enthusiasts who demand reliability without premium pricing. With 7200mAh capacity and a robust 130C discharge rate, this battery powers cars, trucks, drones, boats, and airplanes with consistent performance. The two-pack bundle with hard case protection makes it an excellent choice for hobbyists running multiple vehicles or requiring backup power.

Performance is where this battery truly excels. Users consistently report 25-45 minutes of run time depending on vehicle load, with 12% longer duration than standard alternatives. The 130C discharge rating delivers the high-current bursts needed for rapid acceleration and aggressive maneuvers. The premium LiCoO2 chemistry combined with 4% lower internal resistance means more power reaches your vehicle and less energy wasted as heat, extending cycle life to 350+ charges.

Build quality demonstrates careful engineering throughout. The EC5 connectors feature reinforced corner angles to prevent crimping, and the solid connector feel inspires confidence during high-load runs. The battery survived extended RC boat sessions with multiple charge-run-charge cycles without overheating, confirming the thermal management design. ISO international certification provides additional assurance of safety standards.

The primary consideration is charger compatibility. These batteries require the OVONIC dedicated charger (Mate 1 or X1 models) for safe operation, sold separately. Additionally, the 2S voltage limits compatibility to vehicles designed for 7.4V systems, though this covers the vast majority of popular RC platforms. Some extreme high-performance racing applications may demand higher discharge rates.

Overall, the OVONIC 2S LiPo represents outstanding value for serious RC hobbyists. Superior performance, proven durability, and competitive pricing combine to deliver professional-grade batteries without professional-grade cost. For anyone building or maintaining an RC fleet, this two-pack bundle is a smart investment.

Specifications

Battery Configuration: 2S LiPo (Lithium Polymer), 2-cell arrangement

Electrical Specs: 7.4V nominal voltage, 7200mAh capacity, 130C continuous discharge rate

Physical Specs: Dimensions 139.5 x 47.5 x 26mm (5.49 x 1.87 x 1.02 inches), Weight 330g per battery

Connectors: JST-XHR-3P charging plug, EC5 discharge connector with reinforced support

Package Contents: 2 OVONIC batteries, 2 brand stickers, user manual, hard protective case

Quality Certifications: ISO international quality certification, premium LiCoO2 materials

Buyer Guide

Best For: RC hobbyists with 7.4V vehicles including Traxxas Slash, ARRMA Senton, RC boats, and similar platforms requiring high-performance 2S LiPo power.

Charger Requirements: Requires OVONIC Mate 1 or OVONIC X1 dedicated charger. Do not use third-party chargers without verifying EC5 connector compatibility and charging parameters.

Performance Tips: Expect 25-45 minutes run time depending on vehicle weight, terrain, and driving intensity. Heavier vehicles and aggressive driving reduce duration. Allow batteries to cool between sessions for optimal cycle life.

Maintenance: Store in the included hard case when not in use. Monitor connector condition for wear. These batteries support 350+ cycles with proper care, significantly reducing long-term operating costs versus disposable batteries.

Safety Considerations: Always read the included user manual before first use. Charge only with compatible OVONIC chargers. Discontinue use if you notice swelling, damage, or performance degradation. Contact OVONIC support directly for safety concerns within 24 hours.

7
Currently unavailable

OVONIC 3S LiPo Battery 11.1V 5200mAh 120C EC5

OVONIC
9.8 /10
HNL Score
Our score runs from 0 to 10 and is calculated from public product data such as ratings, review volume, price, and listed specifications. No manufacturer or seller can influence it. Learn more ›

The 5200mAh capacity delivers extended runtime compared to stock packs, letting you run longer sessions without swapping batteries mid-drive. The 120C discharge rate provides ample current for hard acceleration and high-speed runs on the Slash's brushless system. With two packs included, you can keep one charging while running the other, minimizing downtime between bashing sessions. The EC5 connector is a common upgrade plug that handles high current reliably.

Pros & Cons

Pros

  • Hard case survives Slash crashes and rough landings
  • 5200mAh capacity extends bash sessions significantly
  • Dimensions fit Slash battery tray without modifications
  • Two-pack format keeps you running while charging

Cons

  • Occasional quality control issues reported on individual units
  • Compatible OVONIC chargers recommended for best results
Detailed Review

The Traxxas Slash demands batteries that survive hard landings and deliver consistent punch through loose dirt, and this OVONIC dual-pack checks both boxes. The hard-case construction protects the cells during rolls and impacts that would puncture soft packs, a critical feature when you're pushing the Slash off jumps or through rough terrain. Dimensions of 5.47 x 1.85 x 1.22 inches fit the Slash battery tray without modification, and the 0.76 lb weight per pack keeps handling balanced. The 5200mAh capacity translates to longer bash sessions before swapping packs, while the 120C discharge rate provides the throttle response needed for quick acceleration out of corners. Pre-soldered EC5 connectors eliminate installation work and handle high current without overheating. The two-pack format means you can keep running while one pack charges, essential for maximizing track time. OVONIC includes a 1-year warranty and ships the batteries at safe storage voltage, so they're ready to charge and run immediately.

Specifications

Electrical: 3S LiPo configuration, 11.1V nominal, 5200-5400mAh capacity, 120C continuous discharge rate

Physical: Dimensions 5.47 x 1.85 x 1.22 inches, Weight 0.76 lbs per battery, Hard-case construction

Connectors: EC5 heavy-duty pre-soldered connectors, standard 3S battery tray compatible

Package: 2 rechargeable lithium polymer batteries, pre-charged to storage voltage

Warranty: 1 year manufacturer warranty, dedicated after-sales support available

Buyer Guide

Bashers who regularly run multiple packs per outing will appreciate the dual-pack convenience and hard-case durability. Slash owners upgrading from NiMH who want noticeable speed gains and longer runtimes should consider this option. Skip this if your Slash uses Traxxas High Current connectors and you're unwilling to change plugs or use adapters. Also pass if you already own non-OVONIC chargers and prefer not to invest in compatible charging equipment for optimal battery longevity.

Why Dimensions Matter More Than Capacity on the Slash

The Traxxas Slash battery tray accepts a standard short-course truck hard case pack, and a millimeter or two in the wrong direction can mean a lid that won’t close or a pack that rattles loose at speed. Most of the packs here cluster around the same footprint, but there is one clear outlier worth knowing about before you buy.

Six of the seven packs share a length close to 139-140 mm and a width near 47-48 mm. Specifically, OVONIC 6500mAh 130C 2S with XT60 to TRA, OVONIC 6000mAh 130C 2S with Dean-Style T, OVONIC 7200mAh 130C 2S with XT60 to TRA (2-pack), and OVONIC 7200mAh 130C 2S with EC5 all measure 139.50 x 47.50 x 26.00 mm. The OVONIC 6000mAh 80C 2S with Dean-Style T (2-pack) comes in fractionally smaller at 138.84 x 46.74 x 25.25 mm, which means it sits slightly more loosely in the tray but is still within the tolerance most Slash owners report as acceptable.

The outlier is the OVONIC 3500mAh 120C 2S with 5.0 Bullet-T (2-pack). At 95.8 x 46.5 x 22.3 mm it is dramatically shorter than every other pack on this list. It will fit physically, but it will shift and rattle unless you add foam padding. For a casual backyard driver that may be tolerable, but for anyone running hard on rough terrain it is the wrong choice. The OVONIC 5200mAh 120C 3S 11.1V with EC5 (2-pack) is a 3S pack, which changes the voltage equation entirely and is discussed separately below.

Connector Compatibility and What It Means for Your Slash

Stock Traxxas Slash trucks ship with a Traxxas-style TRA connector (also called an iD connector). None of the standard Dean-style or XT60 packs will plug in without an adapter or a rewire. Here is how the lineup breaks down by connector:

  • Dean-Style T (Deans): The OVONIC 6000mAh 80C 2S 2-pack and the OVONIC 6000mAh 130C 2S single pack both use a Deans plug. These are the most common aftermarket connectors for the Slash and are compatible with the huge number of ESCs that ship with a Deans lead.
  • XT60 with included TRA adapter: The OVONIC 6500mAh 130C 2S and the OVONIC 7200mAh 130C 2S 2-pack both include an XT60-to-TRA adapter in the box. That means out-of-the-box compatibility with a stock Slash without rewiring, which is a meaningful convenience advantage.
  • EC5: The OVONIC 7200mAh 130C 2S with EC5 and the OVONIC 5200mAh 120C 3S with EC5 use EC5 plugs. EC5 is the connector Traxxas uses on its higher-end models, so if your ESC or charger is already EC5, these drop right in. Otherwise you need an adapter.
  • 5.0 Bullet-T: The OVONIC 3500mAh 120C 2S 2-pack uses a 5.0 Bullet-T plug. This is less common in the Traxxas ecosystem and will require an adapter for most setups.

If you want zero hassle on a stock Slash, the XT60-to-TRA packs are the safest bet. If you have already rewired your ESC to Deans, the two Deans packs are the cleanest option.

Discharge Rate: How Much C Rating Do You Actually Need?

The C rating determines how hard the battery can be drawn without sagging voltage or generating damaging heat. For a stock Slash running a brushless system in the 3500-4000 kV range, most experienced owners consider 80-100C adequate. For modified builds or aggressive bashing with full-throttle punch-outs, 120C and above provides a real-world buffer.

The OVONIC 6000mAh 80C 2S 2-pack is the lowest-rated pack on this list at 80C. On a stock Slash that is workable, but it leaves less headroom than the alternatives. Anyone who has upgraded their motor or ESC should step up to one of the 130C options.

Every other 2S pack here is rated at either 120C or 130C. The difference between 120C and 130C is unlikely to be noticeable in real-world bashing on a Slash. The 3500mAh 120C pack and the 5200mAh 120C 3S pack both carry 120C ratings, while the four larger-capacity 2S packs all hit 130C.

Capacity and Run Time: Choosing the Right Size for Your Session

Capacity is the most direct lever for run time. Among the 2S packs, the range runs from 3500mAh up to 7200mAh, and that gap is meaningful. A 3500mAh pack will typically give you around 15-20 minutes of moderate bashing on a stock Slash. A 7200mAh pack can push that closer to 35-40 minutes under similar conditions, though actual run time depends heavily on driving style and terrain.

The 3500mAh 2-pack is the only option here where each individual battery is genuinely compact and light at 175g. That lighter weight is a handling benefit on a race-oriented setup, but for most Slash owners who prioritize run time over lap-time agility, the smaller capacity is a real limitation.

The 6000mAh and 6500mAh packs sit in the sweet spot for the majority of drivers. The 7200mAh packs offer the longest run time in this group but also the highest weight at 330g each. That is still reasonable for a Slash, but it is worth noting.

For buyers who want two batteries to run back-to-back sessions, the OVONIC 6000mAh 80C 2S 2-pack, the OVONIC 3500mAh 120C 2-pack, and the OVONIC 7200mAh 130C 2-pack all include two batteries per order, which changes the value calculation significantly compared to the single-battery listings.

The 3S Pack: A Different Decision Entirely

The OVONIC 5200mAh 120C 3S 11.1V with EC5 is the only 3S option in this lineup and it operates at 11.1V rather than 7.4V. That voltage increase delivers noticeably more speed and punch, but it also requires that your ESC and motor are rated for 3S. Running a 3S pack on a stock Slash ESC that is only rated for 2S can damage or destroy the ESC. The listing does not specify exact dimensions in the same format as the other packs, stating only 5.47 x 1.85 x 1.22 inches, which converts to approximately 138.9 x 47 x 31 mm. The height of 31 mm is slightly taller than the 2S hard cases and may affect lid fitment on an unmodified Slash. This pack is the right call for an experienced builder who has already confirmed their electronics are 3S-ready. It is the wrong call for anyone on a stock setup or who is unsure about their ESC’s voltage rating.

How to Choose the Right One

  • Check your connector first. If your Slash is stock, look at the XT60-to-TRA packs (6500mAh or 7200mAh 130C). If you have already rewired to Deans, the 6000mAh 80C or 6000mAh 130C options drop straight in.
  • Match your build’s voltage tolerance. Run 2S (7.4V) on a stock or mildly modified Slash. Only choose the 3S (11.1V) pack if you have confirmed your ESC and motor can handle 11.1V.
  • Prioritize capacity if run time matters. The 7200mAh 2-pack gives the longest sessions and the convenience of a spare. The 6000-6500mAh range is the practical sweet spot for most drivers.
  • Avoid the 3500mAh pack for serious bashing. Its short body will shift in the tray and its lower capacity limits your session. It makes more sense for lighter vehicles or applications where weight is critical.
  • Consider the discharge rating relative to your ESC. If you are running a high-performance brushless system, the 130C packs provide more overhead than the 80C option.
  • Think in packs, not just price per unit. Three of these listings include two batteries. If you plan to swap mid-session, a 2-pack listing can be a significantly better deal than two separate purchases.

Why You Should Trust Us

Our rankings are built by comparing published specifications and verified buyer feedback drawn from public sources. We do not purchase or physically handle these products, and we make no claims of hands-on testing. Every dimension, capacity figure, connector type, and discharge rating cited in this article comes directly from the manufacturer’s listing information. When a detail is not specified in the listing, we say so rather than guessing. Affiliate commissions are earned if you purchase through our links, but commission potential never influences rankings or recommendations. A lower-margin product that genuinely fits your use case will always rank above a higher-margin product that does not.

Frequently Asked Questions

Will any of these batteries fit the Traxxas Slash 2WD and 4WD without modification?

The six packs measuring around 139-140 mm long and 47 mm wide are the standard short-course truck size and should fit the Slash 2WD and 4WD battery tray without modification. The 3500mAh pack is significantly shorter and will require foam padding to prevent movement. Always verify the lid closes fully before driving.

Do I need to buy an adapter to use these with my stock Slash connector?

The OVONIC 6500mAh 130C 2S and the OVONIC 7200mAh 130C 2S 2-pack both include an XT60-to-TRA adapter, so they work with the stock Traxxas iD connector out of the box. The Deans, EC5, and 5.0 Bullet-T packs require either a connector adapter or rewiring your ESC lead.

What is the safest way to charge these LiPo batteries?

Always use a LiPo-compatible balance charger and charge at 1C (equal to the capacity in amps, so 6000mAh equals a 6A charge rate) unless your charger and battery both support higher rates. All seven packs use a JST-XHR-3P balance plug. Never charge a LiPo unsupervised or on a flammable surface, and always use a LiPo-safe charging bag.

How should I store these batteries between sessions?

LiPo batteries should be stored at approximately 3.8V per cell (7.6V for a 2S pack, 11.4V for the 3S pack) when not in use for more than a few days. Most modern balance chargers have a storage charge mode that handles this automatically. Storing at full charge or fully discharged accelerates capacity degradation over time.

How many charge cycles can I expect from these batteries?

OVONIC lists a cycle life of 350 or more times for most of these packs, and 450 times for the 3500mAh 120C 2-pack. Real-world cycle life depends heavily on how consistently you balance-charge, avoid over-discharge, and store the packs properly. Rough handling, heat exposure, and deep discharge are the most common causes of premature capacity loss.

Can I run the 3S 11.1V pack in my stock Traxxas Slash?

Only if your ESC is rated for 3S operation. The stock ESC in most Slash models is rated for 2S only, and running 11.1V through it can cause immediate damage or a shortened lifespan. Check your ESC documentation before attempting a 3S upgrade, and consider whether your motor is also rated for the higher voltage.

Is a higher C rating always better?

A higher C rating gives the battery more headroom to deliver current without voltage sag or heat buildup, which matters most under heavy load like full-throttle runs or jumps. For a stock Slash, 80C is functional but leaves limited margin. For modified builds, 120C or 130C is a more comfortable buffer. Going far above what your ESC can draw offers no practical benefit but also causes no harm.

What happens if the battery is slightly too tall and the lid won’t close?

Forcing the lid risks cracking the chassis or putting pressure on the battery casing, which can damage cells or in rare cases cause swelling. If a battery is even a millimeter too tall, do not force the lid. The 3S pack’s stated height of approximately 31 mm is slightly taller than the 2S packs at 25-26 mm, so confirm fitment carefully before committing to it on an unmodified Slash chassis.

Are all these packs hard case only, or are any soft case?

Every pack in this lineup is a hard case design. Hard cases offer better physical protection against impacts and punctures, which matters significantly in a bashing application like the Traxxas Slash where the battery tray can absorb chassis flex and minor impacts during jumps and rough terrain running.

What is the difference between the two 7200mAh packs?

Both share identical dimensions and capacity, but they differ in connector type. The OVONIC 7200mAh 130C 2S with XT60 to TRA 2-pack includes an XT60-to-Traxxas adapter for stock connector compatibility. The OVONIC 7200mAh 130C 2S with EC5 uses an EC5 connector instead. Choose based on which connector your ESC or charger already uses.

Final Thoughts

For most Slash owners running a stock or lightly modified setup, the OVONIC 7200mAh 130C 2S with XT60 to TRA 2-pack is the standout choice: it delivers the highest capacity in the lineup, a strong 130C discharge rating, two batteries per order, and an included TRA adapter that eliminates connector hassle. If you have already rewired to Deans and want a single pack, the OVONIC 6000mAh 130C 2S with Dean-Style T is a clean, no-adapter-needed option with solid run time. Avoid the OVONIC 3500mAh 120C 2S with 5.0 Bullet-T 2-pack for serious bashing given its short body and limited capacity, and treat the OVONIC 5200mAh 120C 3S with EC5 2-pack as a project-build upgrade rather than a drop-in replacement. The rest of the lineup fills specific gaps depending on your connector type and capacity preferences, but the 7200mAh XT60-to-TRA 2-pack is the easiest recommendation for the widest range of Slash drivers.