Patented Ensol Active™ battery (Patent US 9,948,115) is equipped with a High Energy Transfer Active Battery Management System (BMS). This technology makes an already efficient lithium battery even more productive. Conventional lithium batteries become inoperable when one of the cell capacity deteriorates below 50% of nominal. In Ensol Active™ battery other cells automatically compensate the damaged cell’s capacity. This provides 10-20% higher available capacity and 50% longer lifetime.