Bought these batteries because I use them in all my other cars. Said they fit the 1/10 losi rock Rey. The wires coming out of the battery are on the side and need to be on the very end to fit the battery compartment on the rock Rey. I didn’t return them as I can use them in my other rc cars but really sucks they don’t fit as I’ve had this car for years now and have yet to run it because I can’t find proper fitting batteries. I’m giving it 2 stars instead of 1 as I do like ovonic batteries and they last (have some going on 5 years old and holding strong) but since it said they would fit and don’t it gets a 2 star rating.