jabo6692 Posted November 25, 2013 Report Share Posted November 25, 2013 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? Quote Link to comment Share on other sites More sharing options...
corona_jeff Posted November 25, 2013 Report Share Posted November 25, 2013 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. Quote Link to comment Share on other sites More sharing options...
jabo6692 Posted November 27, 2013 Author Report Share Posted November 27, 2013 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? Quote Link to comment Share on other sites More sharing options...
crunkjuice1 Posted November 27, 2013 Report Share Posted November 27, 2013 or just one D7500 Quote Link to comment Share on other sites More sharing options...
jabo6692 Posted November 29, 2013 Author Report Share Posted November 29, 2013 or just one D7500 shit didnt even know they made one that big, whats the difference between the D and the XP series? Quote Link to comment Share on other sites More sharing options...
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