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Thread: HID setup/Battery Drain

  1. #1
    Junior Member HID Newbie 808MAX-SPEC's Avatar
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    HID setup/Battery Drain

    I finally finished my retrofit and I hooked everything up late yesterday afternoon. This morning my car wouldn't start. Car turns over so it's not the starter. Stereo, alarm, trunk release and power locks work. I took a volt reading on the battery and it read 11.67 volts. My Optima Red Top just made four years old and I'm guessing it's time for a new battery. I'm hoping it is the battery and not the HID setup. Thoughts?

  2. #2
    Senior Member HID Guru another_person's Avatar
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    There shouldn't be any reason for the ballast to drain the battery since you're using a relay harness that only draws power from the battery when the relay is triggered.

  3. #3
    Junior Member HID Newbie 808MAX-SPEC's Avatar
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    That's what i was thinking but I wanted to be sure. And it's just by coincidence that my battery goes south on me.

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    Senior Member HID KING Ocelaris's Avatar
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    battery voltage is not a good indicator of batter charge, because the voltage is only like 1 volt difference from fully changed to fully drained...

    If your harness has a normally opened contact, it is possible to be draining the battery... or if you were running the headlights with the car off for a long time it also might do it.

    If you have a normal harness, it should not drain the battery...

    It is possible to wire a harness wrong so it does pull some power at all times.

  5. #5
    Senior Member HID Guru
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    if the car turns over, it's also not the battery
    the starter requires the most amperage, especially at cold startup w/ cold battery

    but if u insist, go somewhere and ask them to check the battery
    voltage isn't everything, though fully charged battery = 12.6V

  6. #6
    Senior Member HID Recruit vietfrost's Avatar
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    Take the battery to autozone and have a free load test. That should tell you if its just time for the battery to go.

  7. #7
    Junior Member HID Newbie 808MAX-SPEC's Avatar
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    Quote Originally Posted by Ocelaris
    battery voltage is not a good indicator of batter charge, because the voltage is only like 1 volt difference from fully changed to fully drained...

    If your harness has a normally opened contact, it is possible to be draining the battery... or if you were running the headlights with the car off for a long time it also might do it.

    If you have a normal harness, it should not drain the battery...

    It is possible to wire a harness wrong so it does pull some power at all times.
    I'm using your H4 to bi-xenon or two bulb circuit wiring diagram for my harness. I re-drew the diagram so I could understand it. I will double check the harness design to make sure it's not drawing power when I hook it up.

  8. #8
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    optimas normally last 10+ years, and a battery shouldnt really just go WHAM im dead. Id say give it a good long zap on a charger to get it hardcore charged, overcharged if possible and see if it comes back. Did you have the headlights on and off for a while, and or is it getting cold there?

    Batteries dont like to come back from dead, but i bet it would be fine with a good charge.

  9. #9
    Junior Member HID Newbie 808MAX-SPEC's Avatar
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    Quote Originally Posted by getbigtony
    if the car turns over, it's also not the battery
    the starter requires the most amperage, especially at cold startup w/ cold battery

    but if u insist, go somewhere and ask them to check the battery
    voltage isn't everything, though fully charged battery = 12.6V
    I borrowed another battery and got my Maxima to start. I'm going to get a new one today at Sears and have them double check the old one. I will also have my alternator checked out to make sure it's charging properly. Until I know everything works, my retrofitted headlight will stay off.

  10. #10
    Junior Member HID Newbie 808MAX-SPEC's Avatar
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    Quote Originally Posted by ZOMGVTEK
    optimas normally last 10+ years, and a battery shouldnt really just go WHAM im dead. Id say give it a good long zap on a charger to get it hardcore charged, overcharged if possible and see if it comes back. Did you have the headlights on and off for a while, and or is it getting cold there?

    Batteries dont like to come back from dead, but i bet it would be fine with a good charge.
    I was testing my HIDs but they were not on for more than 30 seconds at a time. I've also been through a rash of bad alternators too. We shall see.

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