Feature: New and high quality. 1. This product uses IC (MCU) intelligent control pulse charging technology to charge the battery alternately and cyclically, providing faster charging compared to traditional USB cables. 2. Monitors battery voltage during charging to effectively improve battery life and achieve balanced charging performance. 3. Includes protection functions for input overvoltage, output short circuit, and reverse battery connection, with full automatic shut-off to ensure charging safety. 4. Dual-color LED indicator: red light stays on when powered; green light flashes during charging and stays on when fully charged. Red light will flash if the battery is faulty. Specifications: Input: 5V 2A Output: 7.4V / 2000mA / 1000mA / 500mA (optional) Color: Black Compatible with: Remote control aircraft, remote control car, remote control ship Caution: Keep away from fire. Note: - 1cm = 10mm = 0.39 inch - No retail packaging included - Allow 1-3mm error due to manual measurement; please confirm you are comfortable with this before purchasing - Due to differences in monitor displays, the actual item color may vary slightly from the image Package Included: 1 x Charger