Symptoms
- Pad or phone feels noticeably hot to the touch during charging
- Charging slows down or stops once it gets hot
- Heat is worse with a case on
- Charger has felt hotter than it used to over time
Likely causes
- CommonPhone case blocking heat dissipationCases trap heat against the phone and pad during the inefficient wireless transfer process.
- CommonCoil misalignment causing inefficient power transferCharging off-center wastes more energy as heat than a centered connection.
- PossibleCharging in a warm environment or under direct sunAmbient heat adds to the normal heat generated by wireless charging.
- Less commonFailing charging pad electronicsAn aging or damaged pad can run hotter than normal and should be retired.
What to do
- Remove the phone case while wireless charging when possible.
- Make sure the phone is centered on the pad rather than charging off to one side.
- Move the setup out of direct sunlight or off a heat-retaining surface.
- If the phone or pad becomes uncomfortably hot to hold, stop charging and let it cool before continuing.
- Switch to wired charging if wireless charging consistently runs hot, since wired charging is more efficient.
- Replace a charging pad that runs hot even with a bare phone centered correctly.
Tools and parts
- None required
Replacement wireless charging padSearch: “Qi wireless charger”
When to call a pro
If the phone itself runs hot even on a wired charger, have the battery checked by a repair shop.
Safety
Use caution
Stop charging immediately if the phone or pad becomes too hot to comfortably hold, and let both cool before reuse.