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-   -   Battery discharge prevention (https://www.fiberglassrv.com/forums/f95/battery-discharge-prevention-59418.html)

clyle 07-03-2013 09:33 AM

Battery discharge prevention
 
The search engine doesn't seem to be working today, so pardon if this subject has been discussed before. I left an interior light on for a few days and my battery is completely discharged (probably ruined). My bad, but this is the second time this year and Ultimas ain't cheap. Since it appears that I'm unlikely to smarten up any time soon I was wondering if anyone had experience/recommendations for a battery discharge device that will shut down the system if it is close to being dangerously discharged?
Thanks in advance. Lyle

Darwin Maring 07-03-2013 09:37 AM

Charge your battery for a couple of days and test it.

David B. 07-03-2013 09:52 AM

I remember seeing a device that would shut off the power drain on the battery when critical 50% is achieved, but I don't remember what is was called or where I saw it. Try asking about this kind of device at a Radio Shack, Batteries Plus, or other such establishment. I have changed out the incandescent light bulbs to LED light bulb replacements, and have a 100 watt solar panel perm. mounted, so it is more than capable of keeping up with the scant drain of an LED light. You could try hanging a sign over the exit or on the door handle to remind you to turn off the lights (simple and cheep).:pth
Dave & Paula

cpaharley2008 07-03-2013 11:07 AM

How about something like this? LVD 12, 12V Low Voltage Disconnect

honda03842 07-03-2013 11:09 AM

David's suggestion of LEDs is excellent. You can't leave them on long enought to discharge.

I would not replace your battery. In our first year we dicharged our RV batteries when we left it in storage for a month. Once we recharged them they were still good at the end of 8 years.

Definitely give the battery a chance to recover.

Roy in TO 07-03-2013 01:48 PM

Some solar chargers also have a 12V disconnect built in. I've got one in this family:
https://www.phocos.com/products/cx-series-10-40a The low voltage alarm can be a PITA if you are dropping low at night. I'll have to check the manual, I think I found a way to turn it off.


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