The Aspire USB Charger is compatible with Aspire range of CF batteries and most standard ego battery devices which use a standard thread.
This device is intended for us in USB2.0 or higher power sources.
Important Safety Notice:
Do not leave unattended when charging
Disconnect battery when charging is complete
Do not connect to charging device witch output greater than 5V or 500mA
Input: DC 5v 500mA
Output: DC 4.2V 420mA