EMG 7.4v High Performance Premium Li-Ion FCU Airsoft Battery (JST / 350mAh) – Reliable Power for Your HPA System

Power your HPA airsoft setup with precision and reliability using the EMG 7.4v High Performance Premium Li-Ion FCU Battery, engineered specifically for competitive airsoft players who demand dependable, compact energy solutions. With CE certification, premium construction, and ideal voltage output for HPA systems, this compact 350mAh JST battery is the perfect match for high-speed and high-precision gameplay.

Built for High Performance HPA Systems

Designed with HPA users in mind, the EMG 7.4v Li-Ion Battery features high-performance lithium-ion cells optimized for Fire Control Units (FCUs). The 350mAh capacity ensures stable, consistent power delivery to your HPA engine without sacrificing response time. It’s perfect for lightweight loadouts and builds where every inch and gram counts.

Whether you're running a Wolverine, PolarStar, or other FCU-compatible HPA system, this battery delivers the voltage and reliability needed to stay competitive in fast-paced CQB or outdoor field scenarios.

Compact, Efficient, and Ready for Action

At just 58mm x 17mm, this battery is compact enough to fit in tight spaces, including buffer tubes, small battery compartments, and compact HPA stocks. It features a JST plug for direct connection to your FCU and an XH 3-pin BMS charging connector for safe and accurate charging.

Thanks to its no memory effect, the EMG 7.4v Li-Ion battery can be topped off before matches without degrading long-term performance. This allows players to keep their rig charged and ready, whether it’s a casual weekend skirmish or a full-day MILSIM event.

Safety Certified and Mission-Ready

Unlike many generic Li-Ion options, this battery is CE certified for safety and reliability. It includes a convenient marker-ready label so you can record your first charge date—helping you track battery life, ensure optimal performance, and avoid overuse. With proper care and a compatible charger (not included), this battery will support hundreds of charge cycles.

Note: A Lithium Polymer/Li-Ion charger with a compatible XH balance port is required. Only charge with a proper balance charger to avoid damage and maintain safety.

Shipping Notice for Lithium Batteries

Due to federal and international shipping regulations, this product can only be shipped via ground methods within the continental U.S. Lithium batteries must be under 30% charge during transport, which may lead to slight discharge before use. Make sure to fully charge the battery before your first game session for best performance.

Key Features:

• High performance lithium-ion cells optimized for HPA systems

• 350mAh capacity, ideal for compact HPA builds

• 7.4v output ensures consistent power to your FCU

• JST main plug and BMS/XH 3-pin charging connector

• No memory effect – safe to top off anytime

• Marker label to track first charge date

• CE certified for safety and reliability

• Compatible with Wolverine, PolarStar, and other FCU systems

• Charger not included – use only Li-Ion/LiPo chargers with balance ports

Specifications:

• Voltage: 7.4v

• Capacity: 350mAh

• Watt Hours: 2.59Wh

• Dimensions: 58mm (Length) x 17mm (Diameter)

• Plug Type: JST

• Charging Plug: XH 3-Pin

• Weight: Lightweight and compact

• Charger Required: Li-Ion / LiPo balance charger (not included)

About EMG

EMG exists to bring groundbreaking innovation and top-tier quality to the airsoft market. Backed by over 16 years of experience and partnerships with industry leaders, EMG strives to deliver professional-grade products trusted by airsoft enthusiasts worldwide. From elite AEGs and HPA rifles to premium accessories and batteries like this one, EMG continues to redefine what players expect from their gear.

Keep your rig light, fast, and powered with the EMG 7.4v 350mAh FCU battery—crafted for precision-driven airsoft operators.