how should I fuse or not to fuse

[subzero 5,000+ posts]

I need insights from you guys.

I have four runs of 1/0 power coming off my alt going straight to the rear batteries.

In conjunction, I have the standard runs going to starter and I beefed up the run going fro alt to the battery under the hood.

The rear batteries are Batcap 2000s .

I am not sure where or how to fuse these and what rating.

give ideas please.

Max power consumption is about 5500 watts per sub at 13 volts..

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[madcad95 10+ year member]

It is not safe to not fuse but with that said I do not fuse because I am after every 10th on the mic and I feel confident in my install abilities.

 

[disturbed471985 5,000+ posts]

This may be stupid but would u not fuse each run for the max amp draw its rated for?? So Assuming its tru 0awg "ofc" a 350amp fuse per run??

 

[Bettr n' Revrse 5,000+ posts]

First off always fuse for the wire... When running a power wire to second batt fuse just as if it was running to an amp (fuse no more then a 12" from the batt) then when you get back to the truck fuse again right before it gets to the second batt...

 

[subzero 5,000+ posts]

First off always fuse for the wire... When running a power wire to second batt fuse just as if it was running to an amp (fuse no more then a 12" from the batt) then when you get back to the truck fuse again right before it gets to the second batt...

ISSUES: what size fuses. my biggest issue...

my amp voltage output is 124 volts, 10,250 watts, @ 1.5 ohms. Current is what gentlemen?

 

[Bettr n' Revrse 5,000+ posts]

ISSUES: what size fuses. my biggest issue...
my amp voltage output is 124 volts, 10,250 watts, @ 1.5 ohms. Current is what gentlemen?

I answered that question first... You dont fuse for the amp you fuse to protect the wire which if its OFC is probably rated for around 300-350 at 20 feet...

 

[subzero 5,000+ posts]

I answered that question first... You dont fuse for the amp you fuse to protect the wire which if its OFC is probably rated for around 300-350 at 20 feet...

so your suggesting 350 amp fuses per run of 1/0?

That sounds feesable. because I just pulled a ninja trick to get a close number on power draw. and I have come up with :

10,250 watts power - 12 volt system = 854.1 amps of current.

10,250 watts power - 14 volt system = 732.1 amps of current.

 

[Bettr n' Revrse 5,000+ posts]

so your suggesting 350 amp fuses per run of 1/0?That sounds feesable. because I just pulled a ninja trick to get a close number on power draw. and I have come up with :

10,250 watts power - 12 volt system = 854.1 amps of current.

10,250 watts power - 14 volt system = 732.1 amps of current.

Yep it should be just fine... What wire is it?

 

[subzero 5,000+ posts]

1/0 welding cable, 100% cooper, excellene something. I reallt not sure anymore. I havent seen it on ebay much. rated 600volts safe.

 

[Bettr n' Revrse 5,000+ posts]

1/0 welding cable, 100% cooper, excellene something. I reallt not sure anymore. I havent seen it on ebay much. rated 600volts safe.

You should be just fine with that...

 

[subzero 5,000+ posts]

I was thinking might need 4 in the engine bay and 4 by the trunk bats. incase . I dont want ....

 

[disturbed471985 5,000+ posts]

I was thinking might need 4 in the engine bay and 4 by the trunk bats. incase . I dont want ....

Naw just in the bay and u should be good. I have one before my batts in the rear but I be scary so I can never be to safe LOL

 

[subzero 5,000+ posts]

Naw just in the bay and u should be good

even thou a short would still chance on the other end...

If it was just one bat under hood it wouldnt be issue that I forsee.

but with two power source locations, I think within 16 inches on both sides is what I should do.? no??

 

[disturbed471985 5,000+ posts]

If it was me 4 in the bay and 4 before the batts but thats me and my scary azz...

 

[Bettr n' Revrse 5,000+ posts]

That's how I have mine ran...