BATTERY LIFESPAN survey...

Huntindog wrote:
Surveys such as this are really kind of useless. Battery life is totally dependant on usage.
Just because I get say, 6 years out out of a certain battery doesn't mean that you will.
No two peoples usage will be the same.

I can say that under my USAGE, I have never gotten much more than a year out of a 12 volt. And I have had twe 6 volts going strong at 6 years when I sold the TT.

We boondock a LOT. Probably spend at least 60 days a year in the TT.

This is what I agree with. Your survey has too many variables.

I'll just throw this in;

I have had 2,007 consective nights in my RV. The first 730 nights were on a generator, topping of my batteries each day. The following 1,277 nights have been on Solar (What a life change. Lots of help from this forum to get where I am now. Thank you guys and gals).

From the beginning, I had 2 AGM 6v Batteries 240 AmpH. I abused them terribly, I mean down to readings of the high 10v, often in the 11.6v range. These batteries finally stopped holding a charge, while they would still charge up, during the Day with my solar harvesting. I relegated these batteries to my small solar array if 300w and figured I would just keep using them until they puked, which happened in October of 2014. I swapped them out for a pair of 6v Lifeline AGM 300 AmpH on the 17th of October. They are performing fine.

So to answer your question, I had almost 6 years of continuous cycle (complete use/discharge to full charge (90%)by generator for two years, every day and then for four years to 100% charge by solar. So, I got say 5 1/2 years of use or approximately 1,825 cycles out of a pair of 6v AGM during continuous use.

b


edit; Oh, of the 2007 nights in my camper, I have boondocked/dry camped 1,969 nights, with the remainder spent in 12 campgrounds in 6 years. So shore power is foreign to me.