How to Choose the Right Phone Charger

Difficulty
Beginner
Tested on
USB-C Power Delivery 3.1
You will need
Smartphone, USB-C or Lightning cable, Power adapter

Step by step

  1. 1 min

    Identify your device's charging protocol

    Consult your device manual or settings to determine if your phone supports USB Power Delivery (USB-PD) or proprietary standards like Qualcomm Quick Charge. Modern smartphones exclusively utilize USB-C Power Delivery for universal compatibility and high-speed throughput.

    Note: Most modern flagships default to USB-PD regardless of brand.
  2. 1 min

    Determine the required wattage

    Check the maximum supported input wattage for your specific phone model. While a higher wattage charger will not damage your phone, a charger with a rating lower than your device's peak capacity will result in significantly slower charge speeds.

    Note: A 30W charger is sufficient for most smartphones, while 65W+ is reserved for tablets and laptops.
  3. 30 sec

    Verify cable certification

    Ensure your charging cable is USB-IF certified. Cheap, non-certified cables often lack the necessary shielding and power management chips required to handle high-wattage current, creating a fire hazard and potential damage to the phone's charging port.

    Note: Look for the USB-IF logo on the packaging or the connector housing.
  4. 1 min

    Select Gallium Nitride (GaN) technology

    Prioritize chargers utilizing Gallium Nitride (GaN) semiconductors over traditional silicon chargers. GaN chargers are smaller, generate less heat, and maintain higher efficiency levels when converting AC power to DC for your battery.

    Note: GaN technology is indicated on the product packaging.
  5. 30 sec

    Check port configuration

    Select a charger with enough ports to meet your daily requirements, but be aware of power distribution. If you choose a multi-port charger, verify how the total wattage is split between ports when multiple devices are connected simultaneously.

    Note: Check the fine print on the adapter to see if wattage drops when using all ports.