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So I'm planning on running a bc5500 in the future and i have a few questions about what batteries i'll be needing in the trunk.

Currently i've got an XS power d1200 under the hood and a DC power 270 amp alt with big 3 and what not.

my question is what size batteries should i go for in the back if i'm looking to run the bc5500 at 1 ohm (5500 watts)?

Also how many runs of 1/0 gauge should i have going to the rear batteries?

I was thinking of xp 3000 but my voltage often runs at 15 volts and even up to 15.4v on cold days and i've heard that xp series doesnt like anything above 15v? Might a D series be better?

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Max charging is 14.9 on all XS batts. However if you only have high voltage on cold days and things drop under 14.9 once the engine warns up you will be ok. Also I suggest you use 2 xp3000s on the 5500.

Alright thanks for the advice, yeah my d1200 under the hood seems to be taking the voltage just fine with no fizzing and i've had it paired with this alt for a year now. Should my 270 amp alt be fine with 2 xp 3ks? I wont need a second alt?

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