What is the maximum charge voltage for a LiFePO4 battery?

The maximum charge voltage for LiFePO4 (lithium iron phosphate) batteries is typically around 3.65 to 3.7 volts per cell, which is equivalent to 14.6 to 14.8 volts for a 12-volt battery. This maximum charge voltage value is well below the potential of LiFePO4 batteries to avoid the danger of overcharging and causing damage to the battery, as LiFePO4 cells can be highly volatile and have a low tolerance to overcharging.

It is essential to avoid overcharging LiFePO4 batteries to prevent them from overheating, expanding, and losing capacity. Overcharging can also cause thermal runaway and even fire in some rare cases. Therefore, it is critical to carefully follow the manufacturer's recommended charging specifications to ensure the safe and optimal charging of LiFePO4 batteries.

The charging voltage should be continuously checked using a multimeter or the battery management system while charging to avoid accidental overcharging. Once the battery is fully charged, the charging process should also be stopped to prevent excess energy dissipation that can lead to battery degradation.