Batteries in solar applications have to meet the demands of unstable grid energy, heavy cycling (charging and discharging) and irregular full recharging. There’s a variety of battery types fitted for these unique requirements. Considerations for choosing a battery include cost, cycle life and installation and maintenance.

Here’s a look at these aspects of each technology, as well as some best practices when selecting batteries for a solar installation.

http://www.solarpowerworldonline.com/2015/08/what-is-the-best-type-of-battery-for-solar-storage/