"Trillium features a Trojan-specific cell...... It’s cobalt-free and nickel-free, and it features the industry’s safest chemistry"
They say it is "Lithium-ion". If that is not LFP ??, then perhaps it acts differently. Not a clue.
This explains the various types of Lithium-ion cells. It mentions the 41F figure in the part about charging, so it might apply to the LFP versions ?????
https://en.wikipedia.org/wiki/Lithium-ion_battery"Li?ion batteries offer good charging performance at cooler temperatures and may even allow 'fast-charging' within a temperature range of 5 to 45 °C (41 to 113 °F).[134][better source needed] Charging should be performed within this temperature range.
At temperatures from 0 to 5 °C charging is possible, but the charge current should be reduced"