Energy storage for eclipse operation.
What decides the purchase: Capacity Wh · specific energy Wh/kg · cycle life at depth of discharge · cell chemistry · balancing
Typical materials: Li-ion 18650 and pouch cells, Li-polymer
What changes when it has to fly: Cycle life at the actual depth of discharge, not nameplate capacity, sets battery mass. Cell-level testing and safety are mandatory.
Engineering reference written by us, not a supplier claim.