Just thinking about using my caravan battery when firing up the car just to save the bike battery and was wondering if there is any reason why this is not a good idea, can't see it's any different to a jump start but wondered what others thought.

ta,
Rich.

Not a good idea, as they are designed to be used in a different way.
A car battery is designed to spend most of its life fully charged, with occasional discharges at very high current (starting), then fairly rapid recharge back up again.
A caravan battery is designed to allow continuous discharge at modest currents right down to a fully discharged state without damage. They are not capable of supplying 200-300 Amps for short bursts.

It would be better to get a cheap-and-cheerful car battery from your local motor factors, or even a battery in good nick from a scrappy (e.g. from a newish car that's been shunted - not rolled! )

rgds,

David

David

Thanks David,

Had a think about it last night and came to the same conclusion, best to just get a cheap battery from halfords.

thanks for the advice,
Rich.