Hello, depending on the output power of the charger and cable you are using, usually you can fully charge the 13 Pro Max in 2.5-3 hours using the original charger and cable. However, the charging time is also affected by factors such as the health of the battery and the temperature of the charging environment. It is recommended to keep the ambient temperature appropriate while charging and avoid overcharging or over-discharging to improve battery life and safety.
Charging time varies according to the power supply voltage and battery capacity, the specific charging time is related to the size of the current
The higher the current, the faster the charging speed, generally speaking, the official standard charger, it takes about half an hour to fill the phone battery
If the use of low-power wireless charger for wireless charging, the charging time will be extended
According to the electrical formula P=IV, assuming a voltage of 5 volts and a current of 1 amp, the charging time of the 13promax is 13\/5=2.6 hours.