1, This is a multi-purpose smart magic charger 2, It can solve the charging problem of our daily multi-rechargeable batteries. 3, We can recognize that the battery is a 3.7V-4.2V lithium battery or a 1.2V-1.4V nickel-hydrogen battery. 4, Support 18650 21700 AA AAA 26650 16340 Charging 5, Input parameters: 5V2A Output parameters: 4.2V2A Charging current: 2000 (mA) 10400/14500/14650/16340 (RCR123) / 18350/18500 / 18490/18650/20700/21700/22650/26650/26700 1.2V Ni- / Ni-CD: 1.2V-1.4V NiMH Battery AAAA / AAA / AA / A / SC / C / F6 Model: Q1 Product Certification: FCC ROHS Number of Slots: 1 Charging Time: 5 Hours Color: Black Material: ABS and PC Size: 12.3 x 3.4 x 3.2cm Package Contents: 2 x Charger Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.