92.5W Battery for Swimming Kickboard. The 37 2.5Ah Lithium-ion battery uses ultra-efficient 18650 cells to provide up to an hour of thrilling water experience on a single charge. And, with a quick 3-4 hour charge time, you can get back on the water faster than ever.

• Battery Li-ion: 37V/2.5A
• Rated Capacity: 2500mAH
• Rated Energy: 92.5WH
• Charging Time: 3 - 4 hours
• Battery Weight: 0.9kg