fuse between 2 back batteries?

[Seattle206 10+ year member]

already have 1 extra battery in back...if i add a third (total) do i need to fuse between the second and third batteries?

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[knukonceptz 10+ year member]

No.

The point of the fuse is to keep a live wire out of the cabin where it could spark and cause a fire. With a Battery under the hood and a rear bank of batteries there should be a fuse at the front battery and one inline at the rear (to cut power at both ends in case of accident)

When you have a rear battery and you add a third right next to it, there is no need to fuse due to the short distance. In the even of an accident (rear end) the battery bank would probably gound itself, so a pinched wire would be the least of your concern at that point

 

[ngsm13 5,000+ posts]

INdeed.

No need to fuse two batteries next to eachother...

nG

 

[KINGDELL91 10+ year member]

NO no need at all but I would fuse from the Batt to the amp you can never be too safe IMO!!!!

 

[coolest user 10+ year member]

What if the batteries are on opposite sides of the trunk, then would a couple more fuses be required?

 

[2critical 10+ year member]

A good rule is "within 18" of the batt. So in that scenerio Yes

 

[terra 5,000+ posts]

ya ive got 4 fuses..1 at front batt, 1 at second batt, none between 2nd and 3rd, and 2 between 3rd and amp.

 

[PSturmer 10+ year member]

just remember....fuse's add resistance. you want the least resistance as possible.