4 Slot USB Smart Fast Battery Charger for Li-ion 3.7- 4.2V Batteries New

【Compatibility】 Li-ion: 18650, 18500, 18350, 17670, 17500, 16340, 14500, 10440 3.7V lithium batteries. Support for lithium battery repair function. Li-ion: 18650, 18500, 18350, 17670, 17500, 16340, 14500, 10440 3.7V lithium batteries.