UFX 603040 650mAh 3.7V Li-Polymer Battery for Gamepad – High-performance, KC-certified lipo battery with stable discharge, low internal resistance (≤175mΩ), and long cycle life (500+ times). Ideal for gaming controllers and portable electronics, offering reliable power in compact size. Fast charging at 0.5C, wide operating temperature range (-20°C to 60°C), and CE/ROHS/KC compliance ensure safety and durability. Trusted by OEMs worldwide.More