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      08-29-2014, 07:41 PM   #14
jadnashuanh
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Drives: 535iGT x-drive; i3 BEV
Join Date: May 2010
Location: USA

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This is not true...once the battery level gets to a fairly low level, the REx will turn on automatically, but it will also turn itself off once that level is gained again. IOW, no, the REx will not recharge the batteries to their full state, only to a about 5-6%, then shut off. And, if the batteries get low enough, and you are using more power than the REx can provide, the car will go into a reduced power mode - you can keep going, but at reduced speed and without heating or a/c until the load drops and the REx can begin to recharge them. The REx is a 34Hp engine...and, if you run out of batteries, you're running on whatever electricity that 34Hp engine can produce. With good planning, and understanding, you can just keep going adding fuel about once an hour, but not if you are stressing the thing once the batteries are almost used up.
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