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Originally Posted by MysticBlue
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Originally Posted by chrisny
That said, man, having to do it just for a week away/idle is just nuts! Why is that?
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I think this issue generally has more to do with short trips than sitting idle for a week, although the two together definitely will combine to cause battery problems come up sooner. It's not unusul for people who have battery problems to be told by BMW they are taking too many short trips and recommend either longer trips or a battery maintainer.
I've never had problems leaving my key in the car in my garage. And I've never had problems leaving the car idle for a week. But I have used a battery maintainer in the winter when I may not drive it for a month or two. For anyone who is going to use one, it is important to differentiate between a battery maintainer, and a battery charger. You can hook up a maintainer for as long as you want, and it will take care of itself without burning out the battery. A typical battery charger, even on trickle charge, if left on too long, will cook a battery. |
I was referring to the Porsche recommendation above...
Good point about the battery maintainer (trickle charger) vs full on charger..