High Energy 850mAh 4S 15.2V 120C LiPo Battery for 2-25 Inch RC Models

This GNB 850mAh 4S LiPo battery pack delivers a consistent 15.2V nominal output and a sharp 120C discharge rate, making it a practical power source for RC aircraft from small indoor fliers up to 25-inch wingspan models. Whether you are piloting a lightweight FPV racing drone or a 3D aerobatic plane, the 850mAh capacity provides a solid balance between runtime and total flying weight. The 4S1P configuration ensures each cell contributes evenly, reducing voltage sag under heavy throttle loads. Weighing just 88 grams, this pack adds minimal drag to your airframe while supporting the current spikes needed for rapid climbs and agile turns. Available with either an XT30 or XT60 connector, it integrates seamlessly into most existing power systems without soldering or adapters.

Features and Construction

This battery is built around a 4-series lithium polymer cell stack designed for high-discharge model aviation. Each cell is rated for 120C continuous current, allowing the pack to deliver the energy that aggressive flying styles demand. The compact 26.5 x 30 x 63mm format fits snugly into smaller fuselages and battery compartments.

Cell Configuration and Voltage

The 4S1P arrangement delivers a nominal voltage of 15.2V. This is suitable for models that require a moderate cell count for brushless motor setups. The nominal capacity of 850mAh supports flights of several minutes depending on throttle usage.

Discharge Rate and Power

The 120C discharge rating means the pack can supply up to 102 amps in short bursts. This enables high-power manoeuvres such as punch-outs, loops, and sustained high-speed passes without the voltage dropping below usable levels.

Physical Size and Weight

At 26.5mm thick, 30mm wide, and 63mm long, the battery is one of the more compact 4S packs in its capacity class. The 88-gram weight helps keep overall model weight low, improving power-to-weight ratio and flight handling.

Uses and Placement

This battery fits naturally into several RC flying disciplines. Its size and power characteristics make it a strong choice for pilots who need compact energy storage without giving up high discharge performance.

FPV Racing and Freestyle Drones

On 3 to 5-inch racing quadcopters, the 850mAh capacity provides enough endurance for a full race heat or a freestyle run. The 120C rating supports rapid throttle changes needed for tight gates and trick sequences. The compact size helps centre the mass of the build for better agility.

Park Flyer and Sport Models

For fixed-wing park flyers and small sport planes up to 25 inches, this battery offers a lightweight power source that does not require heavy ballast. The 15.2V output works well with mid-range brushless motors and standard ESCs.

Indoor and Small-Scale Aircraft

On indoor micro planes and small foam models, the 88-gram weight and small footprint allow for easier balancing and longer flight times at reduced throttle. The XT30 variant is especially convenient for micro-class power systems.

Benefits and Buying Value

Choosing a battery with both high discharge capacity and compact dimensions means you can optimise your model for performance without adding bulk or weight. This pack delivers on both fronts, making it a versatile option across multiple model types.

Consistent Power Delivery

The 4S configuration and 120C rating work together to provide consistent current draw even when the battery approaches its low-voltage cutoff. This reduces power fade during the latter part of a flight, giving you predictable handling until landing.

Lightweight and Low Drag

At 88 grams, this pack is lighter than many larger 4S options, making it suitable for models that benefit from a lower total flying weight. Less weight means better climb rate and longer glide times on fixed-wing aircraft.

Compatibility with Common Connectors

By offering both XT30 and XT60 connector options, the battery fits a wide range of ESCs and power distribution boards. This compatibility reduces the need for adapters that add weight and resistance. Simply choose the version that matches your model's existing connector.