General description 10X Lithium Battery Protection Board 4S 12.8V 120A is designed for lithium iron phosphate (LiFePO4) batteries, providing essential protection features to enhance battery safety and longevity. This board includes overcharge and overdischarge protection, overcurrent protection, and balance protection to ensure optimal battery performance. Technical specifications Model: 4S 120A Material: PCB + Metal Color: Silver Continuous working current: within 120A Momentary working current: within 300A Charging voltage: 12.8-16V Charging current: less than 50A Overcharge protection voltage: single cell 3.75V +/- 0.025V Overdischarge protection voltage: single cell 2.10V +/- 0.05V Short circuit protection: Yes (short circuit test is not recommended) Product size: 56 x 86 x 14mm Charging power: 12V DC within 1500 watts Compatibility and accessories Suitable for most electric tools, electric scooters, electric bicycles, electric tricycles, electric motorcycles, and electric