Forum Discussion
ktmrfs
Jun 10, 2015Explorer III
If you want 500-1000+ cycles, out of the batteries stay above 50% SOC. If you are willing to live with 250-500 cycles which I suspect very many of us will since in the even 10 year life of a battery, that's 25-50 such cycles/year, you can go down as low as 20%, at least according to trojan 6v graphs. But going below 20% SOC drops cycle life drastically.
My personal experience is that normally I go to 50% before charging, measured using my trimetric gauge, but we dry camp a lot, and 10-20 times/year I got my batteries down to 20% before I charged them. add in 50 cycles to 50%/year. After 8 years, I gave them to my daughters FIL, they still have very high SG and cycle life data says they are still at around 80+% of initial capacity and going strong.
Now, don't try this with a typical dual purpose 12V. Remember GC batteries in GC at clubs get cycled like crazy.
My personal experience is that normally I go to 50% before charging, measured using my trimetric gauge, but we dry camp a lot, and 10-20 times/year I got my batteries down to 20% before I charged them. add in 50 cycles to 50%/year. After 8 years, I gave them to my daughters FIL, they still have very high SG and cycle life data says they are still at around 80+% of initial capacity and going strong.
Now, don't try this with a typical dual purpose 12V. Remember GC batteries in GC at clubs get cycled like crazy.
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