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      04-29-2013, 08:59 AM   #14
vapore0n
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Drives: 2010 335i
Join Date: Jul 2011
Location: MA

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Try charging the battery for a few hours. Measure voltage before and after. If its not 12-14v after recharge, its dead. Too much discharging to full empty.

If the alternator and battery were fine before the HID install, Id say the HIDs have a short and are draining the battery.