Leisure battery charging circuit

[simonappleyard]

Hi,
I'm looking for a way to charge a leisure battery from a cars cigarette lighter socket. If I simply wire the battery to a cigarette lighter plug it would draw too much current and blow a fuse. I want this to be movable between cars so 'hard wiring' it in with a split charging system is not an option. I need a way of limiting the current drawn to approx. 10Amp so the battery will charge reasonably quickly without blowing the cigarette lighter fuse, is this possible?? I have a basic understanding of electronics (GCSE 15 years ago) so I would be grateful if you could keep things simple!!

Many thanks,

Simon

[Pauldf]

I'm wondering if one of those cigarette lighter to cigarette lighter jump start kits would do, with one of the plugs cut off and a battery connector on.
This is the type of thing I'm thinking about: http://www.ebay.co.uk/itm/METRO-Jump-St ... 4897.l4275

[piratepaul]

If it is a big batt it will blow the fuse... I use a wire from the batt (under bonnet) to pos on the batt in the car and an earth to car body... not sure if it will do the bats much good though.

[Pauldf]

Also make sure that any wet cell vented battery is charged in a well ventilated area!