what do you guys do for charging in winter? I just checked the BMS and it gave 40kWh charge rate & 125kW discharge rate for 40kWh Leaf cells.
It is -2 Deg outside.
This article here is not consistent:
https://batteryuniversity.com/article/b ... mperatures
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consumer-grade lithium-ion batteries cannot be charged below 0°C (32°F)
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According to research papers, the allowable charge rate at –30°C (–22°F) is 0.02C. At this low current, the charge time would stretch to over 50 hours, a time that is deemed impractical.
I guess I am mister careful again, but not keen on degrading £10k worth of batteries.
What are you guys doing for cold days? Anyone been closely observing their OEM vehicle behaviour to give some guidelines?