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Understanding Internal Resistance in Lithium-Ion Cells When comparing lithium-ion cells, capacity and discharge current usually get the most attention. But internal resistance is just as important, especially in high-power applications such as drones, power tools, robotics and electric vehicles. Internal resistance determines how much voltage is lost and how much heat is generated when current

Battery technology rarely moves in a straight line. Over the past decade, lithium-ion battery manufacturers and system designers have continuously shifted between different cell formats in search of the best balance between energy density, power, safety, cost and manufacturability. For lightweight applications such as drones and UAVs, pouch cells were once the obvious choice. Then

For designers evaluating a 32700 lithium-ion cell for UAVs and UGVs, this larger format brings valuable power and durability benefits. The battery industry is constantly seeking the perfect balance between energy density, power output, and physical durability. While the industry standard shifted from the ubiquitous 18650 to the larger 21700 to meet growing energy demands,