ncc74656 Posted October 4, 2014 Author Report Share Posted October 4, 2014 ok so new plan then. does anyone have a recommendation on a battery charger/maintainer that i can wire into my block heater wiring and plug that in over the winter? say a 2-5A charger? for AGM nothing, gutted Link to comment Share on other sites More sharing options...
ncc74656 Posted October 9, 2014 Author Report Share Posted October 9, 2014 best i can tell is my radio is pulling almost dead on what my alt is producing (or slightly under) and thus the alt is not able to keep the batteries up over my short drives. i suppose maybe a 2nd alt is in order. i really thought a single 380A mechman would be able to handle a 3 way setup and one sub. nothing, gutted Link to comment Share on other sites More sharing options...
SLYentist Posted October 15, 2014 Report Share Posted October 15, 2014 Alternators are not immediate power. It takes a moment (a lifetime in electronics time) for the regulator to notice to voltage drop, then kick in to keep the voltage up. A little light dim is expected even with a rock solid alternator setup, this is where having an oversized battery bank helps. I see you have a beefy bank, so maybe the voltage is ECU controlled? Cables and wires almost never fail; the terminations do. Link to comment Share on other sites More sharing options...
Tarball Posted October 15, 2014 Report Share Posted October 15, 2014 best i can tell is my radio is pulling almost dead on what my alt is producing (or slightly under) and thus the alt is not able to keep the batteries up over my short drives. i suppose maybe a 2nd alt is in order. i really thought a single 380A mechman would be able to handle a 3 way setup and one sub. You're onto something here. CURRENT SYSTEM: Alternator: Stock alt on mids/highs Isolated DC Power 270 SP - Charging @ 16.8v Batteries: (2) XS D1400s Power Cable: Double Runs of 1/0 KNU Kolossus Fleks Headunit: 80-PRS Sub Amp: DC 5.0k Subwoofers: 2 RE MT 15s /PSI dual .7ohm recones Subwoofer Enclosure: 9.1cubes @ 32hz - brutal. Mids & Highs Amp: CT125.4 Active Components: Mids RE XXX 6.5c Highs - 3 RE XXX tweeters per side(A pillar) Noise Control: Damplifier Pro all over the cab. Build Log If you do business with me please leave feedback here: FEEDBACK THREAD Highest Legal Score: 151.0 db Highest Musical 30 Second Average: 151.6 db Link to comment Share on other sites More sharing options...
Greasemonkey2014 Posted October 16, 2014 Report Share Posted October 16, 2014 Ever think about completely isolating your car audio system? By running 2 alts. One attached to the starting battery and all stock electronics and the other alt on your agm batteries that power your sound system? Link to comment Share on other sites More sharing options...
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