Description
Grey Wolf 7.4V 300mah 45C HPA Battery
The GW 300mAh 7.4V 45C HPA LiPo Battery is the exact OEM battery supplied inside the Notus HPA Adaptor, designed specifically to power the magazine feed motor in HPA-driven M4 / AR-style Gel Blaster magazines. Compact, lightweight, and purpose-built, this battery is critical to reliable gel feeding in high-performance HPA setups.
Whether you’re replacing a worn-out original battery or carrying a spare for extended skirmish days, this 300mAh LiPo delivers fast response and consistent power output. Its high 45C discharge rate ensures the feed motor keeps up under rapid fire, preventing dry shots, misfeeds, or lag during intense gameplay.
Designed to fit neatly inside the HPA adaptor housing, this battery is not a general AEG stick battery — it is a dedicated internal power source for HPA magazine feed systems. Ideal for competitive players running HPA adaptors who want maximum reliability with minimal downtime, especially during long sessions or events.
Features:
- Genuine OEM replacement battery for Notus HPA Adaptors
- Designed to power the magazine feed motor, not the blaster itself
- 7.4V LiPo configuration for stable, efficient output
- 45C high discharge rate for fast, reliable gel feeding
- Ultra-compact size fits inside HPA adaptor housings
- Ideal as a replacement or spare battery for extended gameplay
- Lightweight design adds no unnecessary bulk
Specs:
- Battery Type: LiPo (Lithium Polymer)
- Brand: Grey Wolf (GW)
- Capacity: 300mAh
- Voltage: 7.4V
- Discharge Rate: 45C
- Application: HPA adaptor internal power supply
- Compatibility: Notus HPA adaptors for M4 / AR-style Gel Blaster magazines
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IMPORTANT INFORMATION

Always use the appropriate eye wear and take all reasonable safety precautions when using our products.
Charging Batteries
When charging the batteries, we recommend charging them between 1-4 hours.
When they are charging the light/s will flash and once it is fully charged, the light/s will turn a solid red or green.
Also once you start to hear the battery getting flat, please recharge it as running it flat can damage the cells.
DISCLAIMER
Do not upgrade any part of your toy gel blaster as this will void the warranty. Upgrades refer to pulling any of the blaster apart or opening it up, changing springs or upgrading the battery from 7.4v to an 11.v battery.