Why choose us? The product is over 4000 times cycles which is much more than normal batteries so stays a long-term life. The battery management system will cut off the current output to protect the battery from overcharges, overdischarges, overloads, abnormal temperatures and short circuits. The product is much more stable in performance so it can be widely used in campers, caravans, camping, boat, exterior lighting, car start temporarily, caravan mover, off-grid, and so on. Specification: Standard Voltage: 12.8V Capacity: 150Ah Recommended Charge Voltage: 14.4V~14.6V Cut off discharge Voltage: 10V Standard/Max Charge Current: 75A-150A Over Discharge Protection Cuttent(10s): 200A(10S) Max. Discharge Current(5s): 350A(5S) （Please see the detailed description!).