Forum Discussion
aftermath
Mar 17, 2018Explorer III
SoundGuy wrote:aftermath wrote:
When you hear "don't discharge your batteries below 50%" I don't think many know what that means. Look at the chart and a 50% discharge will take you down to 12 volts which makes no sense what so ever.
Why does it "make no sense"? :h Full depletion of any 12 volt deep cycle battery occurs @ 10.5 volts, 50% is just a general guide for the masses, nothing wrong with drawing the battery / batteries down further as long as you don't do it too often and recharge ASAP. This general recommendation also applies more particularly to flooded batteries but with more & more starting to use other types such as AGM, GEL, lithium, etc, this general rule of thumb is also becoming less so. For the average user though it's still a reasonable guideline to follow if you expect to get any life out of your RV battery.
For the "regular" guy, half of 12 volts is 6 volts. I was just trying to point out that there are those who might think this is what is meant by discharging to 50% capacity. That is all I was trying to say. It is nice that you know that "full depletion of any 12 volt deep cycle battery occurs @10.5 volts.." I actually didn't know this when I started into this whole trailer maintenance some 30 years ago. I am glad that there are folks like you out there to keep us up to speed.
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