Quote:
Originally Posted by jeffmoore564
Live in AZ. Cold is not really an issue. Only place it gets -4 degrees is a place I do not plan on camping. Good luck and enjoy…
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The problem isn't just when you're camping, but also when your trailer is parked in storage or beside your house. The solar charging system and/or the shore power cable both will provide power to recharge the trailer batteries while in storage and if the temperature drops to that -4 degrees, your battery could be damaged, even while sitting in storage. So, if you install lithium batteries without a heating circuit, and the temperature will drop below the minimum recommended while the trailer charging system is connected to the battery, make sure you disconnect the battery to protect it from being charged "automatically" even if the trailer is not being used for camping at the time.