Journal · Charging & Power
What wattage charger do I need? Phone, tablet & laptop
Short answer
Phones fast-charge at 20–30W, tablets at 30–45W, thin laptops at 60–65W, and performance laptops at 96–140W. Higher wattage never damages a device — it only takes what it needs — so one good 65–140W GaN charger can safely cover everything you own.
The wattage cheat sheet
- Earbuds & wearables — 5W. Anything charges them.
- Phones — 20–30W hits maximum fast-charge speed on iPhones and most Androids; flagship Androids with proprietary fast charging may use more with their own brick.
- Tablets — 30–45W. An iPad Pro will happily draw 45W.
- Thin & light laptops — 60–65W (MacBook Air, most ultrabooks).
- Performance laptops — 96–140W (MacBook Pro 14/16", gaming and workstation ultrabooks with USB-C PD 3.1).
Does a higher-wattage charger damage my phone?
No — and this is the most persistent charging myth. With USB Power Delivery, your device negotiates the voltage and current it wants; a 140W charger gives a phone exactly the 25W it asks for. Wattage on the box is a ceiling, not a force. What can harm devices is an uncertified charger with poor voltage regulation — which is a quality problem, not a wattage problem.
Buying one charger for everything
Add up what you'll charge simultaneously, then add ~20% headroom. Laptop (65W) + phone (25W) + earbuds (5W) = 95W → a 100–140W multi-port GaN charger. Check the per-port split table: a "140W" charger may cap individual ports lower when several are in use. Why GaN specifically? Smaller, cooler, more efficient — the full case is in our GaN vs silicon guide.
The 70% rule
A charger cruising at 70% of its rated load runs cooler and lasts years longer than one working at its ceiling. If your total is 90W, buy 120–140W — the price difference is small, the lifespan difference isn't.
Frequently asked questions
Can I charge a laptop with a phone charger?
Usually yes, slowly. A 20W phone charger will trickle-charge most USB-C laptops when idle or asleep, but it may lose ground while you work. For real charging, match the laptop's rated wattage.
Is it OK to leave devices charging overnight?
Yes — modern devices stop drawing power when full and manage the battery themselves. Use a certified charger; heat and poor regulation are the real enemies, not charge time.
Do watts affect charging speed at all?
Up to the device's own limit, yes — moving a phone from a 5W to a 25W charger is dramatic. Beyond the device's ceiling, extra watts change nothing for that device but let you charge more devices at once.
One charger for everything
GaN III chargers from 30W to 140W — free UAE delivery, 2-year warranty.