Do you leave things plugged in on your car when not in use? I have a 3 port power outlet that charges my GPS, phone, and occasionally MP3 player. It also has a USB port. Even though it's not technically a constant draw, it does apparently suck some power when the car's off because my battery was draining. Now, I just unplug it when I turn off the car. Battery's been a champ since.
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Guy
'87 944 (first porsche/project car)
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