I would not be concerned *at all* about reaching a SoC of ~ 20% for a short amount of time.Kieran973 wrote: ↑Sun Feb 14, 2021 7:24 pmSage, I will try charging to a higher SOC in the winter from now on (pobably 80%), and also running the heater full blast before hand as necessary. But for this to truly reduce the number of charging events I would also have to do a deeper discharge. So what's better? Cycling between 40-60% SOC but charging when it's in the twenties fahrenheit outside? Or cycling between 20-80% but never charging when the battery is below 32F?
As for your SoH drop, remember that SoC is temperature dependent. You will have a better idea of pack degradation when you retest ~ a year from your previous reading.
I know it is not any of my business, but I applaud your efforts to look after your car.
A thought: perhaps the long term solution is to improve the insulation in your garage ? DIY foam spraying is ~ $500. Just be sure to buy the low GHG foaming agent, and be sure to paint or cover up the foam after the spray or it will degrade from exposure to UV