When my van was in the shop, I called Ford and tolld them to turn off my refrigerator if they were going to keep the van inside but they didn't listen to me. When I finally got there they had let both 4-D's fall to around 9 volts
I got the charger on them right away. After talking with Lifeline, the tech told me not to worry and that as long as this doesn't happen often I'd be OK. But he did caution me that leaving them at that state for over a couple of weeks w/o a charge would do heavy damage. They probably lost 2 or 3% of their life.
Sportsmobile (AKA Money Pit)
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