Charging question

[DS3]

I have my ipad2 plugged in while surfing the web and its skowly dropped from 82 to 80% where as my touch, laptop, etc. still go up while in use.

I wanted to see if this was standard or if maybe the USB extension I'm using or so ething else is causing a problem (from the wall charger).

 

[eff pc]

I have my ipad2 plugged in while surfing the web and its skowly dropped from 82 to 80% where as my touch, laptop, etc. still go up while in use.

I wanted to see if this was standard or if maybe the USB extension I'm using or so ething else is causing a problem (from the wall charger).

Might be the extension...if you want to extend the cable you have to play by Apple's rules