NiMh batteries for beginners and not only ,rc model .If you are looking for cheap battery energy and the weight does not care you ,the NiMh batteries are just what you want . There are suitable for Rx ( receiver power ) from 4,8V and 6,0V at hump and flat type . With the 7,2v 6 cells Nimh batteries you can bring into fife your r/c car especially the 1/10 scale without the problems of a li.po.battery.