Universal Charger for Lithium Ion Rechargeable Battery - brand new, never used - $15 firm SPECIFICATION: Input: AC110-220V, 47-63Hz Output: DC3.7V, 450mA End of Charge Voltage: 4.2V +-1% For: 10440, 14500, 16340, 17335, 17500, 17670, 18500, 18650, AA, AAA etc