[mark christopher]

Personally I use a generator, I have one for my caravan and luckily just been given a smaller one which was a non runner and is now fixed for £20, I use this as there are two of us and when I'm racing my 5th car the tyre warmers pull a constant 10amps,

If you go battery get a decent leisure battery as they are designed for deep discharge, modern car battery don't like it and will soon fail. Also worth buying a battery box to store it in to prevent spillage.

I'd not go with the small boost batteries myself,


Oh and one thing you should never do, charge your lipo fully the rnight before, it's a proven way to make them swell