Upgrade your device performance with this high-capacity 3.7V 1000mAh rechargeable battery pack, engineered for longer runtime, stable output, and reliable power delivery. Its compact 3x5cm design ensures a perfect fit for a wide range of RC toys, , and DIY electronics, making it an ideal replacement or upgrade battery. Built with an advanced inbuilt BMS (Battery Management System), this battery provides multi-layer protection against overcharge, over-discharge, and short circuits—ensuring maximum safety and extended battery life. Whether you're running high-speed RC cars or precision , you get consistent and efficient performance every time. The included SM-2P USB charger cable offers easy and convenient charging via power banks, laptops, or USB adapters—no special charger required. Just plug and power up anywhere. Perfect for RC cars, , airplanes, toys, robotics, LED devices, and DIY projects, this battery pack is designed for high compatibility and dependable everyday use. igh Capacity 1000mAh – Longer backup & fewer recharges Stable 3.7V Output – Smooth and consistent performance Inbuilt BMS Protection – Safe charging & extended life USB Charging Convenience – Charge anytime, anywhere Wide Compatibility – Ideal for RC, toys & DIY electronics