Universal Smart Battery Charger for 18650 18500 18350 17670 17500 16340 14500 10440 20700 21700 22650 26650 3.7V Li-Ion Ni-MH - AAA AA Batteries. Charger

Smart Charger: This charger has four independent charging channels. It supports automatic operation, intelligently selecting the most appropriate charging current for each channel, protecting the battery and extending its lifespan.

Universal Battery Charger: Reverse polarity and overcharge protection - Built-in charging current switching technology allows worldwide use (110-240V AC).

When inserting batteries, first insert the negative (-) terminal and press down on the positive (+) terminal to protect the contacts.

Battery charger compatible with various types of rechargeable batteries: 3.6V/3.7V Li-Ion 32700 26700 26650 22650 21700 20700 18650 18490 18500 18350 170 650 16340 14650 14500 10400; 1.2V Ni-MH/Ni-CD: AAAA AAA AA A SC C F6.

The 18650 charger features: chargers for household batteries, 4 slots for independent charging, without interference.

Dual-color charging indicator: red light while charging, green light when fully charged. The final charging voltage is 4.23V and it automatically shuts off when fully charged. Overcharge protection is also included. Safety first: The battery charger has multiple safety protection settings. The charger can effectively prevent reverse polarity, short circuits, overcharging, and damage caused by overcurrent. It uses flame-retardant polycarbonate material and offers excellent heat dissipation. The four corners are reinforced, and there are four anti-slip pads on the back for safe use.