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Old 10-22-2010, 04:48 PM   #23 (permalink)
roflwaffle
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Quote:
Originally Posted by Ryland View Post
What is going to kill their range in the winter is not the heater but the lack of battery heating, you come out ahead even if you use energy from the batteries to heat the batteries so they are closer to their ideal working temperature, ideally you would have a battery heater that draws power from the charging station but when that is not an option you are going to get more range with batteries warmed using energy from that same pack then trying to drive on a cold set of batteries.
That really depends on the battery chemistry... Some batteries won't see much of a drop in usable capacity even below freezing. Others will. Depending on the internal resistance it also may not be a problem because if it's high enough use alone will provide enough heat to bring the pack temperatures up above freezing.
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