At what voltage is a 48V battery fully charged?

The full charge voltage of a 48V battery needs to be analyzed based on the specific battery type. A lead-acid battery is composed of 4 12V cells connected in series; when fully charged, each cell has a voltage of approximately 14.4V, so the full charge voltage of a 48V lead-acid battery pack is about 57.6V (and may reach 58V within the error range). For a ternary lithium battery, a common 48V system composed of 13 cells in series has a full charge voltage of 54.6V (4.2V per cell × 13), while a lithium iron phosphate battery with 16 cells in series has a full charge voltage of 58.4V (3.65V per cell × 16). The charging strategies of different brands of batteries may affect the final value, so It is best to use the original charger to ensure compatibility and avoid overcharging, which may affect battery life.