Understanding the Voltage of a Fully Charged 24V Lithium-Ion Battery
LiFePO4 Battery Voltage Chart. For those using LiFePO4 (Lithium Iron Phosphate) batteries, it is useful to refer to a voltage chart to understand the relationship between voltage and state of charge. Here is a general guide: Fully Charged: Approximately 29.2 to 29.4 volts Resting Voltage: Around 27.2 volts 50% State of Charge: Approximately 24.8 volts Low