We used two heating pads, one for each battery, in the Truck Camper Adventure Rig. The pad was engineered originally to prevent RV water tanks from freezing during winter, but works just as well on lithium batteries inside or outside the camper. The Facon Water Tank Heating Pad is the key component in this truck camper mod. The low temperature shutoff, according to Expion360, will be a feature of the battery management system and will prevent charging below 32 degrees F and discharging below minus 4 degrees F. Note: Expion360 will be incorporating a thermal cutoff switch in their generation 2 VPR PowerMod batteries, which will be available in the spring of 2020.
Best heater for rv boondocking how to#
This article explains how to build a simple lithium battery heating system for your RV for less than $100.įor this modification, you’ll need the following components available mostly through our friends at Expion360 who designed and tested this system for their excellent VPR PowerMod 12 volt Lithium Battery: Fortunately, many lithium battery monitoring systems have built in thermal safeguards to shut down charging to prevent damage, but a way to “warm up” the battery in cold weather is still needed. Indeed, charging a lithium battery below 32 degrees will cause irreparable damage to the battery (a lithium battery can safely be used below 32 degrees, just not charged below that temperature). Unfortunately, the lithium battery suffers from one con that must be addressed in any RV used during the winter-the inability to be charged in freezing temperatures. Not only does the lithium battery provide a much higher usable capacity (90 percent) compared to the lead acid battery (50 percent), but it also weighs less, charges faster, and lasts longer. The lithium Iron Phosphate (LiFePO4) battery has revolutionized the way we camp and power our campers, especially for those who like to boondock.
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