Auto-selected current for speedy charging. - Dual input ports for freely charging. AAAA / AAA / AA / A / SC / C. - 1.2V Ni-MH / Ni-CD 10440 / 14500 / 14650 / 16340 / 17335 / 17500 / 17670 / 18350 / 18490 / 18500 / 18650 / 18700 / 20700 / 21700 / 22650 / 25500 / 26650.