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battery drain
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  1. Duramax Seventh Generation: 2020+ (L5P)
    I have a 2020 Denali L5P. Seems that there isn't much of anything that can be left ON in the truck to drain the batteries - even if you turn the truck on and don't start it - it seems to shut off in 10 mins. However, this AM both the batteries are dead. (9.2 Volts left on them). I'll...
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