Lithium battery charging at or near freezing
Here's an issue I have come upon, freezing temperatures. I see the Lithium batteries will discharge down to 0 degrees F and shouldn't be charged below freezing 32 degrees F. So how would you handle...
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Hysteresis MUST be factored if spot heating is to be used. Meaning raising the temp from say 5F to minimum design specification for the battery internals. This needs heated air to be directed at the battery compartment and monitoring via thermocouple attached to a battery post. A pretty challenging logistical hurdle.
