Fitting second Leisure Battery (1 Viewer)

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Smudger 41

Deleted User
Hi i want to fit a second leisure battery in our motohome. The battery is under the drivers seat and another battery could be put under a seat behind which is close by.Is it just a case of extending cables from exsisting battery to new one ? Is there any thing else i need to know ???:Eeek:
 
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sinbad1

Deleted User
Hi i want to fit a second leisure battery in our motohome. The battery is under the drivers seat and another battery could be put under a seat behind which is close by.Is it just a case of extending cables from exsisting battery to new one ? Is there any thing else i need to know ???:Eeek:
As long as its the same capacity ie if 100ah then you would need another 100ah connect heavy duty cables + to+ and -to - , make sure they are secure job done

regards
 

buellster

Free Member
Feb 12, 2009
27
4
Northumberland
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Exp
4
My van has a similar setup, I placed the 2nd battery in a box behind the passenger seat and used jump leads cut down to the correct length to connect both, + to+ and-_ to-. The battery box has 12v acs. sockets, the jump leads have a breaker plug so the battery box can be removed and used as an independent power source. We do a bit of wild camping and this arrangement worked very well last year. I also plug a solar panel into the battery box which charges both batteries. It has been a good reasonably cheap way of supplying power.

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peter marshall

Free Member
Mar 5, 2009
2,466
1,710
Cleveleys,Lancashire
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5,822
MH
Low Line
Exp
9 Years
2nd battery

Hi I fitted a second battery to my bessacar 465 all that was needed was 2 extention leads from each terminal, and I screwed a frame to the round the battery for secureity, I hope this helps but remember both batteries will have to be match. :thumb:

peter
 

The vagabond

Free Member
Mar 6, 2009
37
0
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5,834
MH
A class
Exp
10
second battery

I have done this too, please remember.......the fumes given off by batteries are explosive, so it should be properly vented.
 

pappajohn

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Aug 26, 2007
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Dark side of the moon
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Since 2005
a few posts mention using battery jump lead sized cable.

i use 50 amp stranded cable, around 1 mtr long. its only about 1/8" > 3/16" thick.(conductor size)

from a safety aspect, fit a fuse at each end of the pos cable, if this cable chafes or gets damaged and shorts to earth it will produce FIRE.

i use 30 amp blade fuses in proper holders fitted close to the battery terminals.

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sinbad1

Deleted User
a few posts mention using battery jump lead sized cable.

i use 50 amp stranded cable, around 1 mtr long. its only about 1/8" > 3/16" thick.(conductor size)



To pass a BSC battery link cables etc must be a minimum of 25sq.mm thickness which is about 170amp capacity. However, I think most people go a little thicker my links are 40sq.mm . In most 12V systems rather than just considering capacity resistance also is an important factor in choosing the right cable.

Regards
 

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