Little help on wiring up second battery.... pics :)

hoxie08
5,000+ posts

i <3 drugs
Need help with wiring up 2nd battery and all... should I do it like this

amirite.jpg


or just ground everything to chassis where it is.... like this

amirite2.jpg


or am i just completely wrong? lol

 
either would work... the best would prolly be a combination... both batts share a ground wire and each one also has its own chasis ground

and you need to put a fuse in between the batts on the positive run
yeah. i just found out someone said its best to fuse 12" from each batt... so that'd be 2 on just the + line between batteries... and yeah, i think i'll ground both batteries to the chassis, does make sense to have as many easy connections as possible..

 
is it absolutely necessary to use an isolator though?

also..... i only have 2 guage wire, but its really big and thats what ALL of this will be done with (bro bought me 40 feet for christmas).... what size fuses... 200 amp... 250?

 
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hoxie08

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