ITEM NAME:LiitoKala Lii-402 4 Slot Battery Charger for AA/AAA 18650 18350 Ni-MH Li-ion Ew.Compatibility: Li-ion / IMR: 18650, 18490, 18350, 17670, 17500, 16340 (RCR123), 14500, 10440. The LED indicators show the charging progress: 25% -50% -75% -100% and the type of battery (size): Ni-MH 1.2V, Li-Fe 3.2V, Li-ion 3.7V, Li -ion 3.85V.