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Old 06-13-2021, 07:28 PM   #1
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Join Date: Apr 2016
Location: Kalamazoo, MI & Leesburg, FL
Posts: 659
Default Added a low voltage alarm

Finally got around to adding a low DC voltage alarm that I got from Ebay a year ago. There are several out on the market, and the one I used is just a cheap circuit board type with an adjustable pot to set the low voltage alarm limit. Since I'm using a flood acid battery, I set the limit to 11.8 volts under load which would go to about 12.0 volts at rest. Anyway, I added a on/off switch and LED light to indicate when I activated the alarm. The actual circuit board is behind the panel.

This is what I purchase but was way cheaper on ebay:
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Old 06-18-2021, 10:18 AM   #2
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Location: SoCal
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Great idea as so many people run their deep cycle or AGM batteries into the ground (i.e., flat) before they even realize it. Anything greater than 50% is bad on the batteries and negatively impacts battery life.

I would only offer a possible improvement that the LED be placed on the OEM status panel in the trailer.
2016 F281BIKS, Added Renogy DC-DC charger to better charge deep cycle batteries.
2003 F250 7.3L Powerstroke Crewcab longbed 20K lbs GCWR
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