In this video we explain Turmera 4 Cell Lithium Battery Management System. We talk about LiFePo4 Battery voltage and charge. Full specs explained, components viewed under magnifier with datasheet and schematic explained. How to connect batteries. We explain how this BMS protects your battery when connecting it to charger, to solar panel or connect it to your load. Then we wiring and preparing wire for Turmera 4S 200A BMS is shown. Then we test the load with 50A, 100A and 150A and try 200A.