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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > General H3 Discussion

 
 
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Old 01-22-2011, 08:28 AM
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wannabeH3 wannabeH3 is offline
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Default Re: BATTERY DEAD...AGAIN...fml

i took a volt meter and took one of the cables off the battery then put one lead from the volt meter on the battery and connected the other lead to the cable I took off, then i think i set it to the milli amp setting for load testing. once you re-attach the power the computers boot up and whatnot for a good minute or two and you see the power draws up to an amp for that duration then it should go down a bit. Mine was pulling nearly 900 milli amps which is quite a bit and enough to kill it in 2 days. i was sure it was my radio that I installed and lo and behold it was the back up cam attached to my radio. I attached the accessory wire to a hot wire by mistake, and so it was always on. once i fixed it the load dropped to about 600 m-amps or something ... its been a year anyways battery is great now.

you can use that method and just pull fuses one at a time starting with radio and back up cams and **** till you find the significant drop in power consumption
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