Overview
This 2-pack OVONIC 3S LiPo battery set is designed for RC vehicles and aircraft requiring an 11.1V power system and high discharge capability. Each pack is rated 5000mAh with a 120C discharge rate and includes a LiPo voltage tester buzzer alarm for quick cell-voltage checks. This set is commonly used in 1/8 and 1/10 scale RC cars and trucks, RC boats, and many RC airplanes and helicopters where size, voltage, and connector type match.
Key Features
- 11.1V 3S1P LiPo configuration: Suitable for 3S-capable ESC/power systems.
- 120C discharge rate: Built for high current draw applications.
- 5000mAh capacity: Designed to support longer runtime between charges (usage depends on model and load).
- Voltage tester buzzer alarm included: Helps monitor pack/cell voltage to reduce the risk of over-discharge.
- Connector flexibility: Main lead shown with XT60 plug; the package also includes XT60 to EC5 easy exchange adapters for setups that use EC5.
- OVONIC “Stacking Technology” comparison claims (as stated on packaging graphics): +6% higher energy density, +12% longer running time, -8% lower battery swelling, -4% lower internal resistance (comparative claim versus “winding technology”).
Specifications
| Brand | OVONIC |
| Battery Type | LiPo |
| Voltage | 11.1V |
| Capacity | 5000mAh |
| Discharge Rate | 120C |
| Configuration | 3S1P |
| Main Connector (shown) | XT60 plug |
| Balancer Connector | JST-XHR-4P |
| Wire Gauge | 12 AWG |
| Dimensions (L x W x H) | 6.11 in (155 mm) x 1.69 in (43 mm) x 0.99 in (25.2 mm) |
| Weight (each) | 0.72 lb (358 g) |
What's Included
- OVONIC 11.1V 120C 5000mAh LiPo battery x2
- Voltage tester buzzer alarm x1
- XT60 to EC5 easy exchange adapter x2
- User manual x1
- Packaging box x1
- Brand stickers x2
Applications
- 1/8 & 1/10 scale RC cars and trucks (when voltage, dimensions, and connector match)
- RC boats (when voltage, dimensions, and connector match)
- RC airplanes and helicopters (when voltage, dimensions, and connector match)
Example models mentioned for reference include: TRA Slash 4X4, ARRMA Senton 3S BLX, ProBoat Sonicwake 36, E-flite F4U Corsair 1.2M, E-flite Timber X 1.2M, and Align T-Rex 470L. Always verify physical size and connector compatibility before purchase.
Safety & Charging Notes
- Battery fit depends on matching voltage and plug/connector with the RC model’s power system.
- Stop charging immediately if any cell reaches 4.2V. Normal cell voltage is 3.7V to 4.2V.
- Inspect the battery condition and confirm voltage is normal before first use.
- If a new battery does not hold a full charge or loses charge quickly, use a balance charger and cycle it several times.
For connector questions (XT60 vs EC5 adapter use) or order support, contact https://rcdrone.top/ or email [email protected].
Details

Each 3S 11.1V pack delivers 5000mAh capacity with a 120C discharge rate, plus XT60 and a JST-XHR balance connector in a compact 155×43×25.2mm case.



A versatile 3S power option for many RC cars, trucks, boats, airplanes, and helicopters when voltage, dimensions, and connector type match your setup.

The box includes two 3S LiPo packs, a LiPo voltage tester buzzer alarm, and XT60 to EC5 exchange adapters for flexible connector compatibility.
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