UFX18650-4P3S 10000mAh 12V features the combination of cells in series, paired based on voltage, capacity, and internal resistance. The battery is rated at a nominal voltage of 11.1V, which increases the voltage.
UFX703450-3S 11.1V 1150mAh 5C is composed of three 703450 1150mAh battery cells, with a nominal voltage of 11.1V, and can support rapid discharge within 5C