whats the advantages/disadvantages of the battery sticks with the hump. Also do you have to do anything special to run those batteries as far as fitting them in the tray
The battery that come with the 4x4 pede you ordered is a hump. basicly for a pack to add the seventh cell it will either go on the side like a hump or on the end like a stick all kits are differant as to what will work. some kits make the battery tray longer ond you use a stick pack, some(like your pede) have a hold down made to work with humps, and some you have to figure a way to hold yourself cuz they only give you a six cell option stock. The advantage of seven cells is more power but be sure your esc can handle it.