A charger that feels slightly warm while charging is normal. But if it gets so hot that it's uncomfortable to hold, it's worth checking whether your phone charger is the right fit for your device.
Read on to learn how to choose a phone charger that works for you, from why chargers get hot to which charger series suits you.
Why Do Chargers Get Hot While Charging?
When you charge your phone, not all the electricity goes into the battery. Some of it turns into heat and is wasted. The more that's wasted, the warmer the charger gets, and the more power it takes to charge your phone.
The good news: a GaN charger, like the VIVAN GaN-Q series, wastes less power as heat.
Why Does GaN Run Cooler?
GaN, short for gallium nitride, is a modern semiconductor material now widely used in chargers. Simply put, it moves electricity more efficiently, so less is lost as heat. And because it's more efficient, the charger body can be much smaller.
Cooler. Less power is lost as heat.
More compact. Fits in a pocket or small bag.
More power-saving. More electricity reaches your phone.
Note: charging speed still depends on the charger's wattage and what your phone can handle. Efficiency is GaN's biggest advantage.
3 Things to Check Before You Buy a Phone Charger
1. Safe and not prone to overheating
Choose a charger with temperature and current protection. Keep it in an open spot, not under a pillow or fabric. VIVAN GaN-Q chargers come with 8-layer protection and a fire-resistant body.
2. Wattage that matches your phone
Check your phone's maximum wattage in its specs or on the charger that came with it. A more powerful charger is still safe if it supports USB PD, but your phone only takes what it can handle. Samsung phones with Super Fast Charging use PPS, so check for PPS support on the charger too.
3. Size and portability
If your charger goes everywhere with you, size matters. GaN chargers are usually more compact than regular ones with the same wattage.
Recommended VIVAN GaN-Q Chargers for Your Needs
VIVAN GaN-Q20: small enough to take anywhere
A 20W charger that's enough for your phone and earbuds. Great if you move between campus, cafés and home. See GaN-Q20.
VIVAN GaN-Q30: all-round for work
A 30W charger strong enough for a phone and a tablet, easy to leave on your desk or beside your bed. See GaN-Q30.
VIVAN GaN-Q65: one charger for your phone and a thin laptop
A 65W charger for frequent travelers who want a lighter bag. See GaN-Q65. See every option in the VIVAN GaN-Q GaN charger series.
Summary: Needs and Chargers
3 Common Mistakes When Buying a Phone Charger
Looking only at price. A cheap charger with no clear wattage or protection details is hard to judge.
Ignoring the signs of heat. If a charger often gets too hot to hold, unplug it and switch to one with clear protection features.
Choosing wattage far below what your phone can take. A phone with 25W fast charging will feel slow with a 5W or 10W charger.
Phone Charger FAQ
Is it normal for a charger to feel warm?
A little warmth while charging is normal. If it's too hot to hold, unplug it and check the charger and the cable.
Is a GaN charger guaranteed not to get hot?
No charger produces zero heat. But GaN is usually more efficient, so it gives off less heat than a regular charger with the same wattage.
Does a GaN charger charge faster?
Speed is set by the charger's wattage and your phone's limit. GaN's strength is efficiency: less power wasted as heat, and a smaller body.
Can I use a laptop charger for my phone?
Yes, as long as it supports USB PD and the cable matches. Your phone only draws the power it needs.
Conclusion
A good phone charger isn't just powerful. It's also efficient, runs cool and is easy to carry. See every option in the VIVAN GaN-Q series, or start with the GaN-Q30 if you need an all-round charger for work.
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