Universal Charger for Lithium Ion Rechargeable Battery - brand new, never used - $15 firm SPECIFICATION: Input: AC110-220V, 47-63Hz Output: DC4.2V, 550mA End of Charge Voltage: 4.2V +-1% For: 10440, 14430, 14500, 14650, 16340, 16650, 17335, 17500, 17670, 18350, 18500, 18650, 19670, 25500, 26650, AA, AAA etc