Charging multiple LiFePO4 batteries with cold temp protection

[DaWiFiGuy]

I am planning to buy a couple of either Siekon, WattCycle, or LiTime 12v 100Ah batteries to use in my "Solar Mini Barn". I am going to hook them up in parallel. What I am curious about is will I run into any issues with the low temp protection when charging. If the low temp protection disengages at different times and one battery ends up getting 30 minutes of charge before the second battery's low temp protection disengages, is that going to cause any issues with charging, longevity, etc?

I suspect that the BMS in each battery will act to compensate for any charging but I want to be sure I am not missing something.

 

[Old_Skewler]

You are on the right track, low temperature charging is a beyootch.

And depending on battery type/BMS, it could go on fault alarm and stop discharging until reset. I have seen (1) battery going on fault alarm Low-Temp Charging while the others stay running - different temperature despite same rack?

I am not sure what the correct procedure would be to reset the faulty battery at lower SOC when the others are at higher SOC (from being charged). But once they are all back on, they would self balance over time.