Tom/Barb wrote:
I converted to lithium batteries 4 years ago, Our battery compartment is not heated.
We have seen temps as low as 19 degrees f.
no issues
Many battery users are unaware that consumer-grade lithium-ion batteries cannot be charged below 0°C (32°F). Although the pack appears to be charging normally, plating of metallic lithium occurs on the anode during a sub-freezing charge that leads to a permanent degradation in performance and safety. Batteries with lithium plating are more vulnerable to failure if exposed to vibration or other stressful conditions. Advanced chargers (Cadex) prevent charging Li-ion below freezing."
https://batteryuniversity.com/article/bu-410-charging-at-high-and-low-temperaturesMy record low temperature is -37 C (-34 f). You can see why Li are not a good fit for me.
