User Guide for the Aspire USB Charger:
Input: DC 5 V 500 mAh
Output: DC 4.2 V ; 420 mAh
The Aspire USB charging cable part is 500 mAh and is used for all Aspire CF series batteries.
To use you Aspire USB charger to charge any of your Aspire CF series battery's simply connect this USB cable to your computer by plugging it into a USB port, Next screw your battery onto the charger, Red light indicates the battery is still charging and the green light will indicate with the Battery charging has completed. Further more you may also use your Aspire USB charger with the Aspire U.S wall plug adapter and connect it to any standard wall outlet.