AhaBulbStuff Everyone Should Know
AhaBulb: Stuff Everyone Should Know · ahabulb.com/phone-chargers

Does a bigger charger charge faster?

Only up to a point. Your phone decides how fast it charges, not the charger.

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The Just Right card

Too littleAn old 2.5-watt cube that can't keep up
Too muchA 100-watt brick for a 20-watt phone
Just rightOne 40-watt USB-C PD charger for phones and tablets

Huh, didn't know that: Wireless charging is handy but slower, and turns 20 to 30% of the power into heat.

The dad joke
My wife asked why I own fourteen chargers. I told her I'm just trying to stay current.
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References

Answer: Only up to a point: your phone decides the speed. The charger offers power and the phone takes only what it can handle. One 40-watt USB-C PD charger runs most phones and tablets at top speed.

  1. USB-IF USB Power Delivery overview www.usb.org/usb-charger-pd
    Optimize power management across multiple peripherals by allowing each device to take only the power it requires
    Checked 2026-10-09.
  2. Apple iPhone charging speeds support.apple.com/en-gb/120619
    if a higher-wattage charger could improve your charging experience, iOS will display a Slow Charger message
    Checked 2026-10-09.

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