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Old 03-23-2019, 10:57 PM   #20 (permalink)
Ecky
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Quote:
Originally Posted by EcoCivic View Post
Awesome, thanks! So just out of curiosity, what would happen if you somehow drain the battery completely (like by leaving the lights on or something) and then jump it and go for a drive? I can't imagine that the batteries would be too happy about the extremely fast charge rate, but I am not sure how they would fail, if at all. Would the batteries blow up or something?
LiFePO4 would not explode. That chemistry doesn't melt down, it tends to just... fail. Loses capacity, loses cranking amps, etc.

I've run it down a few times in winter and jumped it, before I figured my wiring out. On the truly cold days I brought it inside to warm up before charging but it *has* been charged, probably slowly, a little below freezing. Couldn't tell you exactly what goes on having supercapacitors in parallel but my educated guess is that the battery's internal resistance must limit charge rate somewhat, and the caps handle transient loads.
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