Phone Overheating on Wireless Charger? Fix It Now
By Protective Cases & Accessories for Apple iPhone and Samsung | Published: 2026-10-24
Category: Tips & Care
Learn why your phone gets hot on a wireless charger and how to cool it down. Practical fixes for safer, faster charging in your car or at home.
Quick answer
Phone overheating on a wireless charger is usually caused by misalignment, thick cases, or direct sunlight. Remove the case, reposition the phone, and avoid charging in hot environments to fix it.
Why wireless charging generates heat
Wireless charging works by transferring energy through electromagnetic induction. This process naturally produces some heat, but excessive heat signals a problem. Common culprits include a phone case that's too thick or has metal parts, misalignment between the charger and the phone's coil, or charging in a hot car or direct sunlight.
Heat is the enemy of lithium-ion batteries. Prolonged exposure to high temperatures can degrade battery health over time, reducing its capacity and lifespan. That's why it's important to address overheating quickly.
When to stop using the charger
If your phone feels uncomfortably hot to the touch or displays a temperature warning, stop charging immediately. Let the phone cool down before attempting to charge again. Persistent overheating may indicate a faulty charger or phone component. In that case, try a different charger or consult the manufacturer.
Diagnose and fix phone overheating on a wireless charger
- Symptom: Phone gets hot during wireless charging, slows down, or shows a temperature warning.
- Likely cause: Thick or non-compatible phone case (over 3mm or with metal), poor alignment between charger coil and phone coil, or charging in a hot environment like a car dashboard in sunlight. Check your case thickness and remove any metal attachments.
- Corrective action: Remove the phone case, reposition the phone so the coils align (look for the charging indicator), and move the charger away from direct sunlight or air vents blowing hot air. If using a car mount, ensure the charger is securely attached and the phone is centered. After these steps, let the phone charge for 10 minutes and check if it stays cool.
- Stop or choose another option: If the phone still overheats after trying the above, stop using that charger. Consider a different wireless charger designed for your phone model, or switch back to a wired charger. Persistent overheating may indicate a hardware issue with the phone or charger. Do not ignore repeated overheating warnings. It can permanently damage your battery.
Product that helps
- RokLock® Wireless Charger: The RokLock® Wireless Charger locks to a RokLock® car mount for fast wireless charging and is lightweight and compact. A dedicated car wireless charger like this one ensures proper alignment and stable charging, reducing the risk of overheating caused by misalignment or loose connections.
RokLock® Wireless Charger
