[jamesrxx951]

i dont think you want to use nimh for you reciever especially with 5 8711. use 2 2300 a123's no reg and you will be way lighter and better off. get a fromeco wolverine swich and no bat share required. or since it's going in a 50cc bird 2 1100a123's no reg and be even lighter yet and still have alot of capacity compared to the nimh.
you will be looking at around 22oz for 2 nimh batteries and only 6oz for 2 1100 a123 or 12oz for 2 2300 a123's