This Aspire USB Charger cable can be used with any Aspire CF batteries (as well as most eGo style batteries).
This is the genuine Aspire USB Cable with the Aspire logo on it that is backlit with a red and green LED to indicate charging and charged status. Aspire states that you should not use this charger on other brands of electronic cigarette batteries.
Aspire advice is as follows:
If the capacity of the battery is less than 2000mAh choose their 500ma charger
If the capacity of the battery is equal or greater than 2000mAh choose 1000ma charger