The operating voltage range is the safe voltage window for a LiFePO4 battery pack, from 2. 5V (fully discharged) to 3. Staying within this range (10V–14. In series, multiple cells increase voltage (e. Manufacturers are required to ship the batteries at a 30% state of charge. 4V for a 12V battery. . Lithium Iron Phosphate (LiFePO4) batteries are recognized for their high safety standards, excellent temperature resistance, fast discharge rates, and long lifespan. These high-capacity batteries effectively store energy and power a variety of devices across different environments.