another source for agm batteries
Hi, It's time for me to consider replacing four of my batteries that are now 8 years old. I came across this on Amazon. Any one have an opinion on this company? http://www.vmaxchargetank.com/...
Forum Discussion
I think Mena is right, you have to pay to read that sailors blog now (I've lost that bookmark since could not access the site anymore). But saved a clip on my hard drive, here it is:
" Justin Gobar at Lifeline, who provided us with new batteries, is advising us on how to care for them. Put broadly, there are four ways that will yield different lifetimes based on daily 50% deep cycles:
1. Fully charge after each discharge. (We understand that is not feasible (in our case).) Estimated life: 6-9 Years.
2. Fully charge at least once a week and equalize once a month. Estimated life: 4-6 Years.
3. Only charge to 85% and equalize once a month. Estimated life: 2-4 years.
4. Only charge to 85% and never equalize. Estimated life: 1 year. "
The clip is same cryptic as it was years ago when I read the blog first.
"Provided" - was it for free?
"N years" - with how many cycles per year? 365?
"Fully charged" leaves room for interpretation, though there are guidelines on what to consider full, ex. float current= 1%C.
" Justin Gobar at Lifeline, who provided us with new batteries, is advising us on how to care for them. Put broadly, there are four ways that will yield different lifetimes based on daily 50% deep cycles:
1. Fully charge after each discharge. (We understand that is not feasible (in our case).) Estimated life: 6-9 Years.
2. Fully charge at least once a week and equalize once a month. Estimated life: 4-6 Years.
3. Only charge to 85% and equalize once a month. Estimated life: 2-4 years.
4. Only charge to 85% and never equalize. Estimated life: 1 year. "
The clip is same cryptic as it was years ago when I read the blog first.
"Provided" - was it for free?
"N years" - with how many cycles per year? 365?
"Fully charged" leaves room for interpretation, though there are guidelines on what to consider full, ex. float current= 1%C.
