new system gone south!!

[pbnj22 10+ year member]

well just redid my install (new ride) and my battery or alt failed or something... i should have done the install in steps and tested it each time to help find the problem but of course i didnt, nor did i test my battery or alt before.. ughh

any way 2000 ford explorer 135 amp stock alt big 3 in 1/0

1/0 running back to amp pushing 1900 watts at 1 ohm.

voltmeter in dash always seamed low for me before install but a lot of fords are that way, after install it got even worse and 2nd time driving it (to work of course as i was late) 1 by 1 my accesseries turned off, fuzz buster and radio, both coming from ignition wire to back of head unit, then ac, then speedometer, and techometer, then my entire car died, disconnected everything babied it home but now (hours later) battery rests at 10.6 and idles at 11.6. how would i tell whats wrong here? because im starting to think i should charge my battery up to 12.6 then test it before i start to assume stuff is wrong

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[mclerico83 5,000+ posts]

well just redid my install (new ride) and my battery or alt failed or something... i should have done the install in steps and tested it each time to help find the problem but of course i didnt, nor did i test my battery or alt before.. ughhany way 2000 ford explorer 135 amp stock alt big 3 in 1/0

1/0 running back to amp pushing 1900 watts at 1 ohm.

voltmeter in dash always seamed low for me before install but a lot of fords are that way, after install it got even worse and 2nd time driving it (to work of course as i was late) 1 by 1 my accesseries turned off, fuzz buster and radio, both coming from ignition wire to back of head unit, then ac, then speedometer, and techometer, then my entire car died, disconnected everything babied it home but now (hours later) battery rests at 10.6 and idles at 11.6. how would i tell whats wrong here? because im starting to think i should charge my battery up to 12.6 then test it before i start to assume stuff is wrong

sounds like short somewhere, car is discharging

 

[mylows10 5,000+ posts]

start it and test what the alt is charging at

 

[pbnj22 10+ year member]

start it and test what the alt is charging at

charges at 11.6

 

[assassin1840 10+ year member]

i had this a couple days ago so i disconnected my back bat from the front and everything was good one of my wires was shorted out. replaced it and its good as gold

 

[pbnj22 10+ year member]

im gonna just bring my alt and battery to get tested for free somewhere tomorrow. and go from there.

 

[maljr1980 10+ year member]

lol 1 ohm on 135 amps... your amp probably has what 120, 150 amps of fuses in it? only 1 battery? stock battery? next time get your electrical upgraded first. people dont understand that concept

 

[pbnj22 10+ year member]

lol 1 ohm on 135 amps... your amp probably has what 120, 150 amps of fuses in it? only 1 battery? stock battery? next time get your electrical upgraded first. people dont understand that concept

yes i realize that. thing i dont understand is i had the exact same system in a camry 4 banger with like a 60 amp alt... never had lights dimming or anything. even playing full tilt for half hour sometimes longer...