Borimend Quick Battery Charger 4 Slots 9V with LED Indicators USB Cable for Ni-/Ni-Cd/Li-Ion Rechargeable Batteries

3.LED indicator: The red light is always on when charging, and turns green when fully charged. USB Type-C charging cable, not affected by the environment, as long as there is a USB interface can be charged. Very convenient. 1. charging channels: 4 channels can charge 1 to 4 batteries, 1 or 4 9V batteries for about 3.7 hours. Automatic shutdown after full charge, safe, can extend battery cycle life. 2. chip protection: Constant voltage charging is controlled by internal IC. Input: 5V 2A, Output: 8.7V ± 0.2V*4Ch 260mA±20mA*4Ch. No memory effect, not damage the battery, the cycle life and capacity of the battery. 4.Multiple protection: Built-in protection equipment to prevent overcharge, overvoltage, overcurrent, overdischarge, reverse charging and short circuit protection, which can protect the battery and charger well.