A great fit into any standard 1/10 touring cars that runs on the 5cell NiCad or NiMh battery. These are the exact same size you will use to replace those battery with LiPo. Its much lighter then the standard batteries so some balancing on the chassis is needed if your changing to lipo. Provides much longer run time and less time charging. It also requires a 6V 5-7A Voltage Regulator to convert the 7.4v to safely use on your 6V reciever. Without the regulator your burn the reciever because the power output of the battery is too high. Another thing which is essential is a LiPo Balancer/Charger as you will not be able to use normal NiMh or NiCd charger on Lipo batteries. So 3 items needed if you simply want to change to LiPo use. This battery is very durable and last really long. You dont need any higher volatage liPo as it will just be turned into heat and heat up your cat.