Has anyone posted this yet?
http://physics.ucsd.edu/do-the-math/...-of-a-battery/
"All the metrics looked great. The 2.7-year-old lead acid batteries in my off-grid photovoltaic system appeared to have settled into a consistent mid-life performance. Monthly maintenance (equalizing, adding distilled water) promised to keep the batteries in prime condition for some time to come. Based on cycle depth, I expected another 2.5 years out of the present set of batteries. Life was good.
Then, during my absence over the course of Thanksgiving weekend, one of the batteries expired...."
http://physics.ucsd.edu/do-the-math/...-of-a-battery/
"All the metrics looked great. The 2.7-year-old lead acid batteries in my off-grid photovoltaic system appeared to have settled into a consistent mid-life performance. Monthly maintenance (equalizing, adding distilled water) promised to keep the batteries in prime condition for some time to come. Based on cycle depth, I expected another 2.5 years out of the present set of batteries. Life was good.
Then, during my absence over the course of Thanksgiving weekend, one of the batteries expired...."
Comment