Why Slow Charging. Wireless charging generates heat and if the battery heats up above a threshold temperate usually around 30-40 degrees C the phone will slow the wireless charging rate in an attempt to protect the. This might happen if youre using a charger that didnt come with your device.

Why Is My iPhone Charging Slowly. Simply try charging the device on more than one outlet to see if the problem is fixed. This makes them perfect for overnight charging or when youre in the office.
Your iPhone is charging slowly because youre using a low amperage charging sourceImagine a fire hose.
High ambient temperature and slow charging. As far as I can find this means that the device is charging. The majority of slow charging points are rated at 3kW 36kW and will recharge an electric car in eight to 12 hours. High ambient temperature and slow charging.
