This is not because I am sponsored by them, but the new Mtroniks IP6 isfantastic. Its cheap (£129 ish), and it is very powerfull. It feels like you have just bought brand new batteries. Also its more efficient to the motor and the brakes stop you dead. The power transfer is also very very smooth. The only bad thing about it, is they dont give you any stickers with it but I have spoke to them and its in hand for the future.
