Skilhunt M1 USB Battery Charger for Li-ion LiFePO4 IMR(26650, 22650, 18650, 17670, 18490, 17500, 17335) and Ni-MH Ni-Cd(AA, AAA, SC, C) Rechargeable Batteries High compatibility: compatible with Li-ion LiFePO4 IMR(26650, 22650, 18650, 17670, 18490, 17500, 17335) and Ni-MH Ni-Cd(AA, AAA, SC, C) Rechargeable Batteries Multi-function model: Two charging current options. One button easy control different charging status. Three-stage charge (CC, CV and Trickle Charge). Humanization design: LED indicator display battery charging process. Charging current, charging mode, Free control the charging process at any time. Convenient: USB output function, can be portable power source for your mobile devices. Safety: Soft-start function, to avoid damage from large current charge and safely charge small capacity batteries.Short-circuit, over-load and over-heat protected, intelligent circuits. Use new fire-retardant flame-resistant material for safety.