I bought a few of these batteries for my 1/24th scale Losi mini short course truck. They give great run time and are comparable to similarly sized Turnigy Nanotech packs. Couldn't tell a difference in performance. They fit great in the battery compartment. I had to change the battery connector on the ESC, but if you can solder it's not difficult at all. An alternative to changing the connector on your car would be making an adapter. (Posted on 4/4/2015)