I recently relocated my battery to the rear and I am using 4 gauge audio wire that I had leftover. I bought a $9 150amp circuit breaker from ebay and it cramped out on me on the 3rd time it tripped. at least it worked, well kind of. any suggestion on good circuit breaker? is 150amp sufficient?

 

Most people seem to use 150 amp. The battery relocation How To many people refer to uses 150 amp circuit breakers and says anything over 100 amp should be sufficient.

FC3S Pro v2.0:* How To - Battery Relocation

I'm about to relocate my battery and I bought a 140 amp circuit breaker from Crutchfield:

T-Spec Circuit Breaker (140-amp) Fits 1/0- to 4-gauge wire at Crutchfield.com

You also may want to look into why it is tripping so often. I don't believe that is a common problem with battery relocations. Many people use heavier gauge wire than 4, although by most standards, 4 gauge should be sufficient for that amperage and length (if going straight to starter).

 

I know autozone sells one called cooper bussmann for like 30 bucks, thinking of getting that.

 

use the bussman breaker, i haven't had any problems with them.

i use 100a on pre '86 cars and 150a on anything after.

 

I buy all my electrical supplies from these guys. Take your pick...

150: Circuit Breakers | Waytek, Inc

I personally like this one:

BUSSMANN CIRCUIT BREAKER 150A 285150F-121-S SURFACE TYPE III - 46694

 

alright cool. thanks folks.,., I might go with bussmann

 

I am using the bussman but you should check over the wiring first mine has never tripped before.

 

got bored and dissected the old breaker. not sure if its supposed to be designed like this