I just bought a G3451 ( http://www.bestbuy.com/site/olspage....=1118840200271), and can u guys give a comment is this a fair price to buy this. I mean with 35USD can i buy something better than that? Hold on, don't go away yet. That car use 7.2V battery pack, so does it matter if i use something like 9V or 12v pack? is it gonna affect my car?[X(]