18650 lithium battery single sink fixed charger with usb usb flashlight battery charger

Product Name: 18650 Single Seat Charger with USB

Input: 4.2-8V

Output: 4.2V, 500mA

Application: Suitable for 18650 lithium ion rechargeable batteries.

Usage: Insert the battery into the slot, and it can be charged directly on a computer for 18650 lithium batteries. It can also be charged by connecting a USB charger for 18650 batteries, and so on. The output lights up green when it is in a normal standby state, and it turns red when charging. When the battery voltage reaches about 4.16V, the red light turns green, indicating that the battery is fully charged, and it is not completely stopped from charging, but continues to charge with a small current.

Features: Overcharge protection, anti-reverse charging, and auto-shutoff once fully charged.