ASG 7.4v 250mAh FCU LiPo Battery – Ultra-Compact Power for HPA Airsoft Rifles

Take control of your HPA setup with the ASG 7.4v 250mAh FCU Battery, designed specifically for powering the fire control unit (FCU) in your high-performance airsoft rifle. This compact, high-output Lithium Polymer (LiPo) battery delivers consistent, reliable power in even the tightest of spaces—perfect for fitting inside buffer tubes, pistol grips, or compact stocks.

Built for HPA Performance

Tailored for HPA users, this 7.4v battery provides optimal output for electronic FCUs without taking up precious real estate inside your rig. Measuring just 38mm x 15mm x 20mm, the battery is one of the smallest in its class, yet still delivers a 250mAh capacity with a 20C discharge rate—more than enough to handle your FCU’s demands.

Whether you're running a PolarStar, Wolverine, or other popular HPA engine with an electronic FCU, this ASG battery provides stable voltage, quick response, and maximum efficiency for sustained, uninterrupted gameplay.

Key Features:

• High-performance Lithium Polymer (LiPo) cells for consistent voltage and long-term reliability

• Compact design optimized for tight builds—perfect for pistol grips and buffer tubes

• No memory effect, so you can recharge without reducing lifespan

• 20C continuous discharge rate ensures smooth FCU operation

• JST plug and BMS/XH 3-pin charging connector for compatibility with standard chargers

Superior Build Quality

Manufactured by ASG (ActionSportGames), a global leader in airsoft and replica gun innovation, this battery reflects the company’s commitment to performance, safety, and durability. Whether you're upgrading a current HPA rifle or building a new custom platform, the ASG 7.4v FCU battery is a dependable choice that won’t weigh you down or limit your options.

Weighing only 75 grams, it won’t affect your rifle’s balance or maneuverability. The solid internal construction and premium-grade cells ensure a long life cycle and reliable operation across temperature ranges and weather conditions.

Designed for Compact Spaces

Not every airsoft build leaves room for a full-size LiPo battery. That’s where this ultra-slim battery excels. Its small footprint and low profile make it ideal for stealthy builds or minimalist HPA rifles that prioritize form and function.

Tech Specs:

• Voltage: 7.4v

• Capacity: 250mAh

• Discharge Rate: 20C

• Dimensions: 38mm x 15mm x 20mm

• Weight: 75g

• Plug Type: JST

• Charging Connector: BMS / XH 3-pin

• Charger Compatibility: LiPo chargers only (not included)

Ground Shipping Notice:

Due to U.S. DOT and IATA regulations, all lithium polymer batteries must ship via ground methods with a charge of less than 30%. Prolonged storage at this low charge can damage the battery, so it is recommended to fully charge your battery upon delivery and avoid long-term storage in a discharged state. International air shipping is not available for this item.

About ASG

ActionSportGames (ASG) is a recognized innovator and manufacturer of airsoft guns, CO2 guns, and realistic firearm replicas. With global licenses and top-tier engineering, ASG continues to set industry standards. Their focus on performance, safety, and realism makes them a go-to brand for serious airsoft players worldwide.

Equip your HPA rifle with the ASG 7.4v 250mAh FCU Battery today—powerful, compact, and built for competitive play.