Are lithium batteries worth the cost?

time2roll wrote:
Generally the BMS will halt charging at about 0c and halt discharge about -10c.
Of course no reason to get below 5c as you would want to add a heater if going that cold. However your battery would be protected if an unexpected cold snap was to slam down suddenly.

According to BattleBorn you can safely charge LifePo4 cells below 32f (0c), but you must reduce the charge current accordingly. I would prefer the option to reduce/limit charge current when temps get down to say, -3 or -5c, rather than rule out all charging below 32f (0c). That's one of the reasons I'm hoping to find a LifePo4 charge current/rate vs. temperature chart. Of course, to pull this off you need a programmable BMS. A nice advantage of a DIY LifePo4 cell pack.