Has anyone tried something like this?
BluePack S3 2600 mAh for iPhone/iPod/BlackBerry
From what I can tell, besides being an external battery that you can leave plugged in, it will also recharge your battery (i.e. transfer power over) if you leave it plugged in for an hour or so.
BluePack S3 2600 mAh for iPhone/iPod/BlackBerry
From what I can tell, besides being an external battery that you can leave plugged in, it will also recharge your battery (i.e. transfer power over) if you leave it plugged in for an hour or so.