Good Sam Club Open Roads Forum: DIY Battery Heating Project...Update


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Open Roads Forum > Do It Yourself Modifications and Upgrades (DIY)

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Rbertalotto

Massachusetts

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Posted: 12/13/22 05:16am

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A while ago I posted about my DIY Lithium Battery Heating system. So far, with temperatures at night reaching into the 20s (F), it has been working great. The batteries in the trailer have BMS with Bluetooth and it records the batteries average internal temperature. Staying around 40 degrees day and night. I wanted to know how often during the night the heating pad turned on. I installed a small LED on the outside of the trailer that illuminates when the heater is on. My "RING" camera security system records through the day and night and I can go back and review the video with a time stamp. I can see the light turning on and off. Last night it got down to 20F. The battery heater turned on for 7 minutes every hour +/-.....200ah batteries this morning are at 93%.....I'm very pleased with this performance...

http://rvbprecision.com/rv-projects/lithium-battery-heating-project.html

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* This post was edited 12/13/22 10:38am by Rbertalotto *

RoyB
Dartmouth, MA
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2011 Forest River Grey Wolf Cherokee 19RR
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The Western States

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Posted: 12/13/22 07:30am

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Very nice project. The pic interfered with the link for me. http://rvbprecision.com/rv-projects/lithium-battery-heating-project.html

2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
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Bob

pianotuna

Regina, SK, Canada

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Posted: 12/13/22 06:00pm

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Rbertalotto,

Thanks so much for taking the time to do this testing!

Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.