Interesting.. And I do agree with the question about cold weather recharge (Can it be done)
By the way up to a point cold weather recharge of existing batteries is possible a well.. but it's more costly than warm weather recharging.
Why.. First you use the charger power to warm the battery via a good old electric heater.. Then you charge it.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times