Quote:
Originally Posted by Pete'sMH
0.4% per month? That’s 5% a year and suggests it would still have a useful (50%) charge in 10 years of total neglect. I’m afraid I’m a bit skeptical. But then again, I’ve not done the research. My last travel trailer had a new and expensive AGM that the salesman assured me would last the winter. It was on my workbench with no load whatsoever and didn’t. I kept it’s replacement on a Battery Tender thereafter. It doesn’t take a lot of use to keep a fully charged battery ready to go and you’re supposed to run your coach and your generator regularly for other reasons anyway. Works for me.
|
Perhaps I over stated my contention - From the Lifeline Technical manual
AGM self discharge - 1 to 3% per month –remains stable over life
Flooded Battery deep cycle battery -5-10% per month when new –increases drastically with age due to antimony contamination of the negative plate.
Thor Forums
