18650 3.7v Battery Charger

Portable Battery Charger: Multifunction lithium battery charger, with smart chip, support usb chargering, will stop charging automatically when battery was fully charged. Compatibility: Telescopic design, support multi specification 3.7V/4.2V series lithium battery, You can charge for 18650 14500 10440 Design: Independent control, multiple slots can be charged at the same time without interfering with each other Indicator: The charger indicator light shows red when the batteries are charged, and shows green when the batteries are full, When the battery is installed backwards, the charging ic automatically disconnected and does not work Protection: Intelligent circuit design, overcharge protection, overvoltage protection, short circuit protection, overcurrent protection, temperature protection, overpower protection