Discharging LI Phosphate is allowed to -4 deg F, but recharging shouldn't be done at normal rates below Freezing / 32F.
Recharging can be done at very low rates below 32F at a very reduced charge rate but wouldn't be very beneficial or easily done regardless. Easier and safer to say "don't charge below 32F".
""Important tips to keep in mind: When charging lithium iron phosphate batteries below 0°C (32°F), the charge current must be reduced to 0.1C and below -10°C (14°F) it must be reduced to 0.05C. Failure to reduce the current below freezing temperatures can cause irreversible damage to your battery.""
I have 3 Rebel 100A with bluetooth, all can be turned off or on with a phone app, and also displays battery temp. An amazing amount of settings are adjustable which a normal user wouldn't need to mess with.
I think you'll be fine. 200A is quite a bit of power, and drawing power also heats the battery. Maybe place a thermometer near your battery for some piece of mind.
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2020 Pinnacle 32rlts
640 watts solar, 300AH lithium
2020 High Country Duramax 3500
TS3 Hitch
Ms says I'm full of useless knowledge and other stuff...
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