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DIY Battery Heating Project...Update

Rbertalotto
Explorer
Explorer
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

RoyB
Dartmouth, MA
2021 RAM 2500 4X4 6.4L
2011 Forest River Grey Wolf Cherokee 19RR
520 w solar-200ah Renogy Li-Epever MPPT
4 REPLIES 4

wiskeyVI
Explorer
Explorer
Pretty cool. Thanks for sharing.

wiskeyVI
Explorer
Explorer
Pretty cool. Thanks for sharing.

pianotuna
Nomad II
Nomad II
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.

CA_Traveler
Explorer III
Explorer III
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
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob