I use a bump box for my buggy and now my truggy. However with the 7.2v stick packs all I seem to do is charge the damn things and then I get limited usage out of them. I know I can aslo use 12v batteries and I was considering a 12V 7ah sealed lead battery since they are cheap, known to last, and small enough to fit inside the box itself.

Has anyone tried them?

http://www.ebay.com/itm/12Volt-7-0Ah...item19e5ea02f8

I know they make gel batteries as well. Just looking for some advice on this.

The other option I considered was using 4 7.2v stick batteries with 2sets ran in parrellel with the tamiya plug adapter. If I had 4 1800mah 7.2v batteries wired this way I would end up with essentially 2 3600 mah batteries.

Thanks in advance.