Torqeedo Lithium Battery Power 48-5000A class of its own in lithium batteries for boats: 70% more energy density and 50% longer cycle life than typical lithium LiFePO4 batteries. With Power 48 5000, Torqeedo brings a new class of lithium batteries to the market. Based on automotive technology and BMW i battery modules, Power 48 5000 delivers industry leading value with its combination of energy density, long service life, ISO standards compliance, and cost. Product descriptionHigh