Quote:
Originally Posted by puddinboo
I have drills with the lithium batteries and if I leave them in the work van over night in -20c weather they will be totally dead untill they warm up , also with the lithium battery they keep full charge all the time and then they completely dye with no sign of getting week. In my opinion I would stay away from lithium in a vehicle ,thats my 2 cents.
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The voltage on the battery does not just drop off immediately it is a protection on the battery. So once the voltage drops to a certain point it will shut off to prevent it from discharging itself to a point that would cause damage over time. I really do not think this would be an issue in a car. Your not just fully discharging your battery all the time anyways like you try to with an Li ion battery.
That said I would never spend that much money on a battery. It just isn't that big of a deal. I rarely keep a vehicle long enough to justify this anyways.