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joemon

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  4. voltage drop pretty bad

    in Electrical-battery- Alternators- Wiring

    Posted

    Ok I have a 91 Nissan 240sx 4cyl (ka24de) 2.4l with I believe a 80amp stock alt.

    My setup:

    Kenwood flip out indash

    Kenwood 1din eq

    Kenwood x600f (4ch) amp

    2) Kenwood x1200m (mono) amps

    All Scorpion X and Rockford 0awg wires

    (Big 3 and batt. To batt.)

    3 batteries (big wet cell stock battery, hc600 and hc1200 kinetik batterys in trunk)

    Amps r connected to a Rockford block (0ga in 3x 4ga out)

    I think that should give plenty of info on setup..

    now with the car sitting over night and the next day the resting volts (with all 3batts connected on) is 12.6-12.4

    Turn car on and volts is 14.3 cold and 14.1-13.9 when car is all warmed up (with all 3batts on)

    I switch the breaker I have from front battery(stock) off to the rear batts(kinetiks) the volts read 12.7 off and 14.1 on

    Ok wen I'm playing the music at have volume (vol.15) everything is fine wen I go to volume (vol.20) I see just a .01-.02 voltage drop.

    Now at my max listening volume 25 (deck max out at 32) my volts drops to at times 12.4 with car on and my car lugs down like crazy with rpm drops from 900rpm to 300-400rpm.

    Now from my eq the bass is at 0 when this happens. When I put the volume at 25 and the eq bass setting at -6 the volts read 13.9-13.8

    When I go up in setting on eq the volts drop with increase of eq to the bass only.

    Is this just too much draw?

    Maybe a bad cell in a rear battery?

    Not enough wires(power,ground)?

    At this moment I took the kinetik batterys out to test them.

    Any thoughts???

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