- Prevent Overcharging and Short Circuits : Our USB lithium battery charger features advanced intelligent IC technology that protects against overcharging, over-discharging, and short circuits. This built-in safety system enhances battery longevity and ensures the safety of your devices. - Versatile Compatibility : This charger is designed for a wide range of applications, compatible with electric RC toys including SM-3P, SM-4P, SM-2P, as well as toy airplanes and various devices requiring 7.4V 1000mA lithium batteries. Whether you need to power drones, cars, boats, or robots, this charger is an essential tool. - User-Friendly Indicator Lights : Maximize your charging efficiency with visual indicators. The red and green lights inform you of the charging status, automatically turning off once the battery reaches full charge to prevent overcharging and conserve energy. - Reliable and Stable Charging : Enjoy fast and dependable charging without any complicated settings. Simply connect the charger to a USB port, and it will automatically adjust to provide stable power to your device every time. Practical Application Scenarios : 1. Charge your RC car before a race, ensuring optimal performance with a fully powered battery. 2. Quickly recharge your drone’s battery after a flight session, readying it for the next adventure. 3. Power up your toy airplane for a day of outdoor fun, guaranteeing it is fully operational when you are. Choose our USB lithium battery charger for a reliable, user-friendly way to keep your devices powered and ready for action.