Feature: 100% Brand new and High quality. 1: This product uses the IC (MUC) intelligent control pulse charging method to charge the battery alternately and cyclically, which is faster than the traditional USB cable. 2: Check the battery voltage during charging, effectively improve the battery life, and the effect of charge balance 3: input overvoltage, output short circuit, reverse battery protection function, full self-stop, to ensure charging safety, 4: Two-color LED indicator. When the power is on, the red light is always on, the green light is flashing when charging, and the green light is always on when charging. Note that the red light will flash when the battery is faulty. Specifications: Input: DC 5V 2A Output:7.4V / 2000mA / 1000mA / 500mA（Optional） Color: Black Apply: Remote control aircraft remote control car remote control ship Caution Pls keep away from fire Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included 1 x Charger 100% Brand new and High quality. 1: This product uses the IC (MUC) intelligent control pulse charging method to charge the battery alternately and cyclically, which is faster than the traditional USB cable. 2: Check the battery voltage during charging, effectively improve the battery life, and the effect of charge balance 3: input overvoltage, output short circuit, reverse battery protection function, full self-stop, to ensure charging safety, 4: Two-color LED indicator. When the power is on, the red light is always on, the green light is flashing when charging, and the green light is always on when charging. Note that the red light will flash when the battery is faulty.