Adding second leisure battery - different controller needed? (1 Viewer)

[Melchior]

Hello chaps and chapesses,

I want to add a second leisure battery to our Knaus. As standard it (I think obviously!) has two batteries, one for the engine and one leisure.

At first I thought I can just add the second one and connect it in parallel to the existing one. Then I wonder if actually it's better to change the charger control unit thing to one which can look after the 3 batteries (in case one starts failing, you'd never really know if you keep the 2 battery controller)

Thoughts, experiences... please share

M

 

[Reallyretired]

Just wire it in parallel with the existing leisure battery, with a suitable fuse in the line. No need to change charger or controller.

 

[Boycie]

M,

This link may be of use if you have,nt yet added your second battery.
Phil

http://www.motts.org/second leisiure battery.htm

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[mapa]

You are always better using 2 batteries in parallel rather than using batteries singly and changing when one goes flat. The reason is that batteries last longer if they are discharged slowly and evenly, and running a battery down low will drastically shorten it's life. Make sure both batteries are as close to identical as possible I.e same ahc and same construction type.

 

[DonA4000]

Also do you have to keep it within the charger limits? My knaus original charger (LG 616) Battery capacity: 50 Ah – 160 Ah