Features:
1) Ultra fast Ni-MH/Ni-Cd battery charger, charges 2 or 4pcs of AA/AAA
Ni-MH/Ni-Cd batteries within 2-3 hours
2) Powered by external AC adaptor when using at home or by a cigarette lighter
plug from 12V car battery when using in a vehicle
3) With negative delta V (-△V), automatic cut-off for safety protection
4) 4 hours timer cut off, for double protection
5) Defective or unrechargeable batteries detection
6) Automatic charging current selection, provides the best charging current for
AA/AAA size batteries
7) Reverse polarity protection, protects the batteries against incorrectly
installed batteries
8) Over current protection maintains constant charging current during the
charge cycle
9) Short circuit protection protects the charger if you attempt to charge
shorted batteries
10) Over temperature protection, with temperature sensor protects the batteries
from being damaged by over-heating
11) Trickle charge after full charge
12) Charging indicator:
a) Red: charging
b) Green: fully charged
c) Flash: defective battery or unrechargeable battery
13) Compact size and light weight.

Specifications:
1) Input: 100-240VAC 50/60Hz, 0.25A or 12V car battery
2) Output
a) AA: 2.8VDC 1000mA, 5.6VDC 1000mA
b) AAA: 2.8VDC 550mA, 5.6VDC 550mA
3) Operating temperature: 0 - 40 centigrade
4) Storage temperature: -20 ? 65 centigrade