Li-ion USB 18650 3.7V Battery Charger 4 Packs

 

It is a charger that you can use to charge your 18650, 16340, 14500, 18350 and 22650 Li-ion batteries. This charger, which gives 4.2V output and can charge your lithium batteries, is very easy to use. It offers the opportunity to charge four, three, two batteries or a single battery at the same time.

The battery or batteries must be installed on the product with the correct plus and minus directions. Then the charger is connected to a 5V USB input. It can be plugged into the computer or phone charger adapters. The battery indicator on the device is red during charging. When charging is complete, it turns green. For your safety, do not leave this product on charge overnight or leave the product plugged in after the batteries are charged. When charging is finished, unplug it.