Lifepo4 cold temp cut off 23F or 32F?

jaycocreek wrote:
Reading on LFP cold cut off I see Expert Power has 23F as there cut off on there batteries and I thought it was 32F?

Expert Power wrote:
Question: Do these have low temperature protection. Will these work for solar power systems?

Answer:Yes, the do have low-temp cut-off (23F for charging / -13F for discharging)

Which is it or?

That seems low to me unless it is a special chemistry. Yttrium does this and will have a Y in the name.

Generally even 32 is pushing it for most LFP as amps could be limited. I recommend making provisions to keep the battery above the 35-40 zone for best life and performance.

WINSTON WB-LYP100AHA LiFeYPO4

Some battery makers are now building self heating LiFeO4 batteries.

No they don’t use their own amp hours to heat. The batteries can deliver energy down to -20C battery temp.

They use energy from the charging source to warm the cells. Then they begin to charge.

Lithium batteries can accept charge at very high rates.

This is why a small generator or engine alternator charging is probably step one in a lithium system then do the solar spend to round out the system, especially if you camp in winter, forest, shade, or rainy lands.

Checked their web site and it states 32F

https://www.expertpower.us/collections/lifepo4-batteries

It depends in the individual maker.