This Air Raid Airsoft 7.4v 250mAh LiPo brick battery is engineered for use with popular HPA airsoft systems, offering dependable, efficient power in a compact form factor. Measuring just 42mm 23mm 12mm, its ideal for tight. Spaces commonly found in HPA line setups, stocks, and compact platforms. With a JST power connector and a BMS/XH 3-pin charging plug, this battery is fully compatible with systems such as the Valken V12 Engine, Wolverine Inferno Engine, and PolarStar Fusion Engine. Its 25C discharge rate ensures stable, consistent output suitable for HPA performance demands. Perfect as a primary or backup power source, this LiPo HPA battery provides long-lasting reliability in a lightweight, easy-to-fit design. Dont forget Air Raid Premium Airsoft BBs.