theoldwizard1 wrote:
pianotuna wrote:
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.
You are more aware of battery chemistry than I, so hopefully you can answer this question. I am aware if the cod charging issue, but can you store or discharge LiFePO4 batteries below freezing ? How far below ?
storage differs on the brand and type of cell used. the new 280K's I just ordered from eve can be stored for 1 month at -40 and long term to -20C. they can actualy be discharged down to -30C and charged at full rate at -5C. I am still going to set my charg limit on my BMS at 0C though.
