volvowith18psi Posted June 16, 2012 Report Share Posted June 16, 2012 (edited) Finally shelled out the bucks for my Mechman and XS D6500, come to find out most local cheaper line battery chargers change @ 15-15.5V Ontop of that, it seems my Jeeps PCM limited the charging voltage or something to like 13.8(highest meter reading I got w/ full load / no load / after big useage @ idle and 2k+ RPM) Extra Sad panda I have to watch the super sexy battery collect dust for awhile till I can afford a proper charger from XS... Just a vocal tear... Edited June 16, 2012 by volvowith18psi Quote Link to comment Share on other sites More sharing options...
fox_racin4 Posted June 17, 2012 Report Share Posted June 17, 2012 13.8v isnt that bad... Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
b-dubs89 Posted June 17, 2012 Report Share Posted June 17, 2012 (edited) i think if or when the time comes for to me own a vehicle new enough to have that pcm controlled charging bullshit i will probably find away to run a separate charging system dedicated to audio . Edited June 17, 2012 by b-dubs89 Quote Link to comment Share on other sites More sharing options...
JEMT8 Posted June 17, 2012 Report Share Posted June 17, 2012 Get adjustable voltage thing for your alt to bypass your PCM? Quote formerly known as Jaylor Swift Link to comment Share on other sites More sharing options...
HunterJohnson Posted June 17, 2012 Report Share Posted June 17, 2012 run your alt straight to the back battery? Quote Scion tC SQ BuildiPad mini, lots of fabrication, daily drivenFord Explorer C Pillar Wall Build Just a cheap car to destroy with bass Link to comment Share on other sites More sharing options...
volvowith18psi Posted June 17, 2012 Author Report Share Posted June 17, 2012 (edited) About the AVM THING, Im pretty sure they do not offer that or something for my car, the rep I spoke with never mentioned that I may need it. Ima call on Monday when they open just to check. I havent started on building my battery bank yet This is just finializeing my under the hood upgrades. Need a damn charger that, thought I could cut a corner on that for now and just upgrade later, but nope...! Edited June 17, 2012 by volvowith18psi Quote Link to comment Share on other sites More sharing options...
SnowDrifter Posted June 17, 2012 Report Share Posted June 17, 2012 Stick a diode in the sense wire? That's about the cheapest way I can think of to up the voltage. Only works on some cars though Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
AgentTyler Posted June 17, 2012 Report Share Posted June 17, 2012 What kind of vehicle is it? I remember seeing a thread on SMD or another car audio forum that the person was having the same issue but once he flipped on his headlights his car kicked the voltage up to 14.x. I don't know if this works on all cars tho. Quote 1998 Ford Contour Head Unit: Pioneer DEH-P8400BH Front/Rear Door Speakers: Alpine SPR-68 (Type-R 6x8) Door Speaker Amplifer: Kicker ZX650.4 Subwoofers: 1 SSA Icon 12" Amplifier: MB.Quart 1.1500d Second Battery: XS Power D925 Link to comment Share on other sites More sharing options...
Crandis16 Posted June 17, 2012 Report Share Posted June 17, 2012 (edited) run your alt straight to the back battery? not sure what a PCM is but this seems like it should work. It sounds like the big 3 upgrade should fix that problem but I may be wrongEdit: I'm a noob when it comes to underhood electrical lol, it sounds like I'm wrong Edited June 17, 2012 by Crandis16 Quote My Red zx2 Build Log My Black zx2 Build Log My Red zx2 UBL Link to comment Share on other sites More sharing options...
LoudPursuit Posted June 17, 2012 Report Share Posted June 17, 2012 PCM's are a b*tch I drive a 06 pursuit only way was an older style alt... Quote Headunit: Pioneer avh-1400dvd Subs: DC Audio lvl 4 18 with carbon fibre dustcaps Sub amp: Rockford T2500-1bdcp Mids & Highs: RF Prime 5.25's + Focal Polyglass 6.5s Highs Amp: RF T600-4 Batts: XS Power D975, XS Power D925 Alt: Mechman 270a Wires: Shok Industries 1/0, RF RCA's and Shok 12/8 gauge speaker wires Deadening: Second Skin TEAM DC TEAM SHOK Link to comment Share on other sites More sharing options...
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