suethedriver Posted April 24, 2006 Share Posted April 24, 2006 We have got a second spare leisure battery to take on our two week holiday and would like to know the best way to wire it into the system with the existing one. Any advice would be helpful thanks. (?) Link to comment Share on other sites More sharing options...
colin Posted April 24, 2006 Share Posted April 24, 2006 The way I would do it is, mount batteries next to each other, connect up in parrelel, i.e. positive to positive and negative to negative. Connect incoming positive lead to one batery and earth to second battery so as to give even charge across both. Link to comment Share on other sites More sharing options...
Brambles Posted April 24, 2006 Share Posted April 24, 2006 Can I just add you should also make sure both batteries are in a similar state of charge before connecting. Ideally both batteries should also be of a similar age and type. Disconnect/connect the negative terminals 1st. If you spanner touches both negative and chassis (seat say) then no prob. If you are undoing/connecting positve with negative connected and have a slip then BIG sparks will fly. With negative terminals disconnected then if a spaner shorts +ve to chassis by accident then it is safe. The second battery must be securely fixed - vehicle regulations, and remember to attach a vent tube to the outside which you could do by using a Y piece into existing tube from other battery. Link to comment Share on other sites More sharing options...
Clive Posted April 25, 2006 Share Posted April 25, 2006 A few clues can be found on http://www.motts.dsl.pipex.com/second%20leisiure%20battery.htm Take care. C. Link to comment Share on other sites More sharing options...
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