Many homes that use deep-cycle batteries as part of their renewable energy or off-grid power system’s energy storage, are often strained to maximum capacity levels. The result is sets of batteries that don’t seem to last as long as they used to. The increase in renewable energy homes and small businesses began as a great way to lower power usage costs, but with more employees in a facility with limited battery capacity, and families living together in one place using appliances, mobile devices, and other electrical accessories, battery storage systems can suffer. The problem occurs when deep-cycle batteries are discharged too deeply, typically more than 50%, there’s a greater chance of electrolyte stratification to occur. This is a condition where the acid in the electrolyte separates on recharge and collects at the bottom of the battery causing it to become stratified. A battery with stratified electrolyte has an uneven amount of acid at the top and bottom of the cell. This condition can lead to poor performance and short life from increased grid corrosion and plate sulfation. Batteries used in renewable energy and energy storage applications are typically stationary which means they do not benefit from the electrolyte movement and mixing present in vehicular applications. Batteries used in stationary applications, such as energy storage, require more frequent equalization charging to assure that gassing occurs during charging to mix the electrolyte to prevent electrolyte stratification.