High Energy 850mAh 4S 15.2V 120C LiPo Battery Pack for 2-25 Inch Model Airplane Drone RC Racing Aircraft XT30 XT60 Connector
High Energy 850mAh 4S 15.2V 120C LiPo Battery Pack for 2-25 Inch Model Airplane Drone RC Racing Aircraft XT30 XT60 Connector
High Energy 850mAh 4S 15.2V 120C LiPo Battery for 2-25 Inch RC Model Airplanes and Drones
When you are building or flying RC aircraft in the 2 to 25 inch range, finding a battery that delivers strong current without adding excessive weight is essential. This 850mAh 4S pack provides a 120C discharge rate to support powerful motors, yet keeps the total mass at only about 88g. Its small footprint – 26.5 by 30 by 63mm – means you can fit it into tight spaces inside fuselages, wings, or drone frames. Whether you are racing a mini quad or flying a sport park flyer, this pack balances energy capacity and output capability for reliable in-flight performance.
Specifications and Construction
All figures below come directly from the product listing, giving you clear, measurable details to confirm compatibility with your model.
Cell Configuration and Voltage
The battery uses a 4S1P arrangement, meaning four cells in series with a single parallel group. Nominal voltage is 15.2V, while full charge voltage is 16.8V. This standard 4S voltage works with a wide range of 4S-capable ESCs and motors designed for small to mid-sized RC models.
Capacity and Discharge Rating
Rated capacity is 850mAh, offering a good mix of flight time and power delivery. The 120C discharge rate indicates that the pack can supply up to 102A continuously (850mAh x 120C = 102A), which is more than enough for spirited flying in most sub-250-size aircraft.
Physical Dimensions and Weight
At 26.5mm thick, 30mm wide, and 63mm long, the battery is compact enough for narrow battery bays. The actual weight of approximately 88g helps keep overall model weight low, which improves thrust-to-weight ratio and manoeuvrability.
Connector and Compatibility
The battery is available with either an XT30 or XT60 discharge plug. Choose the version that matches your model's ESC connector to avoid needing adaptors.
XT30 Connector
The XT30 is a compact 30A-rated connector suited for smaller models and micro drones where space and weight are at a premium. Its smaller body fits neatly into tight compartments.
XT60 Connector
The XT60 is a 60A-rated connector commonly used on larger park flyers and racing drones. It provides a secure, low-resistance connection for higher current applications.
Practical Benefits for RC Pilots
This battery is designed for pilots who need reliable power without guesswork. Its specifications are clearly stated, so you can verify fitment before purchase.
Easy Fitment for Small Aircraft
With dimensions under 30mm in two axes and just 63mm long, the pack slides into most battery compartments intended for 850-1000mAh 4S packs. The flat shape also makes strap mounting simple.
Strong Power for Agility
The 120C discharge rate supports rapid throttle changes and sustained high-power output during climbs, passes, and racing manoeuvres. You get punch when you need it without voltage sag that could affect performance.
Lightweight Design
At around 88g, this battery does not significantly increase the all-up weight of sub-250g drones, helping you stay within regulatory limits for micro class operations. For larger models, the low weight improves overall power-to-weight ratio.
Buying Confidence
You receive a single battery pack with the connector of your choice. All specifications are as listed, so you know exactly what you are getting – no inflated claims, just clear data for informed purchasing.
