Originally Posted by beamishken
That's a pretty small battery in reality so I'd look at small car batteries and find the cheapest you can which will probably be bigger than the minimum required
Don't worry about it saying Marine or leisure that's just an excuse to charge you more
As long as your not running accessories for long periods with the engine off you'll be fine
So a regular car battery out of say, Halfords should do the trick?
They do one at 70Ah, but it's CCA is 680, that's not going to cause any problems/damage is it?
Cost isn't really an issue as I'd rather get the best/correct one. In any case that one is £77.