In 2008 I installed Lifeline 6V batteries in my 25 Safari.
Thread is http://www.airforums.com/forums/f449...tml#post514373
Reporting after 70,000 miles and 5 years, they still work!
No maintenance other than 2 years ago I cleaned the terminals. I also
had them load checked and they were good.
I have a voltmeter in my trailer and I see about 0.1 v per month decrease in cold
storage. So I can get four months of storage and lose only .4 volts, at which time
I either go somewhere or charge it up.
Performance has decreased a bit. But it is small, since I can't really measure it.
I maintain by monitoring voltage. When boondocking, about 1/2 discharged I recharge on the road or with a powered site.
This lasts about 2 days when 30 deg. outside, using shower and furnace. I have a couple of solar panels on top that supplements. But not much on shoulder seasons.