Quote:
Originally Posted by 10/10ths
....batteries like to "take a charge" after they are drained just a little bit.
Battery tenders work best, when the battery has been drained just a little bit down from full charge.
When you park your car, turn the headlights on after you shut the engine off and let the lights burn for about five minutes before shutting everything down and plugging in the battery tender.
The battery will then "accept the charge" and the circuitry inside the tender will recognize the state of charge and enter the proper charge/maintain cycle.
FWIW, the "Porsche" branded cigarette lighter chargers work great and can be found pretty cheap online.
Good luck.
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Why in the world would you need to go through that procedure? I don't put mine on charge unless it's going to sit for 2 weeks or more. Just plug it it, close the door ..... done !