General description Overcharge and overdischarge protection to prevent battery overcharge and overdischarge. This 4-String Lithium Battery Protection Board is designed for Lithium Iron Phosphate (LiFePO4) batteries, providing essential safety features such as overcurrent protection, balance protection, and stable heat dissipation. It is suitable for a variety of electric tools and vehicles, including electric scooters, bicycles, tricycles, motorcycles, and other electric tools. 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 Compatibility and accessories Applicable assembly: three strings of nominal 3.2V