To use a wireless charger, place your compatible phone on a Qi-certified charging pad that is connected to power. This guide covers everything you need for a successful phone wireless charging setup, not how to build a charger from electronic parts.
How to use a wireless charger: what you need to know
This is a consumer setup guide for using a wireless charger with a compatible phone. It is not a DIY construction project. Apple states that iPhone 8 or later models work with Qi-certified wireless chargers. Samsung confirms that wireless charging support varies by Galaxy model, and that Galaxy A series, XCover series, and Galaxy Tab series devices are not compatible.
Understanding wireless charging
Wireless charging uses electromagnetic induction to transfer energy between a charging pad and your device. Apple says the iPhone uses integrated wireless charging and works with Qi-certified chargers. Qi certification ensures the charger meets industry standards for safety and compatibility. When you need to know Qi Charging: What Is It & Is Your Phone Qi-Enabled, check your phone's specifications: if it is an iPhone 8 or later, or a supported Samsung Galaxy model, it is Qi-enabled. Wireless charging helps reduce wear and tear on charging cables, which can prolong their lifespan. A capacitor is used to store and regulate electrical energy, helping to smoothen the flow of current and prevent sudden power surges. A diode allows current to flow in only one direction and prevents reverse current from damaging the circuit. A bridge rectifier converts alternating current (AC) from the power source into direct current (DC) for use by the wireless charger. A transistor acts as a switch in the wireless charger circuit, controlling the flow of current and enabling efficient charging.
Which phones work with wireless charging
Compatibility facts are straightforward. Apple says iPhone 8 or later can charge wirelessly with Qi-certified chargers. Samsung says wireless charging support varies by model; Galaxy A series, XCover series, and Galaxy Tab series are not compatible with wireless charging. Always verify your specific device model before purchasing a charger.
How to set up your wireless charger
Apple documents the official setup steps. Follow these in order:
- Connect the charger to power using the included power adapter and cable.
- Place the charger on a level surface.
- Place your iPhone face up on the center of the charger.
- Look for charging in the status bar to confirm it is working. Adding an LED to your wireless charger can provide visual feedback on the charging status, illuminating when the device is placed correctly and charging is in progress.
Wireless charging speed and what to expect
Apple says many Qi-certified chargers charge an iPhone with the latest version of iOS at rates up to 7.5 watts. Speeds vary by device and the power adapter you use. Wireless charging is generally less efficient than wired charging, so it may take longer to fully charge your device.
Frequently Asked Questions
Can an iPhone charge wirelessly on any Qi charger?
Apple says iPhone works with Qi-certified chargers. Look for the Qi logo on the charger packaging to ensure compatibility.
What should be visible when charging starts on an iPhone?
Apple says you should see charging in the status bar at the top of the screen. Some chargers also have an LED indicator that lights up.
Does Samsung PowerShare work with all Galaxy phones?
Check your Galaxy model's specifications to confirm if it supports reverse wireless charging.
Do I need to change any settings to enable wireless charging?
No. Wireless charging is automatic on supported devices. Simply place your phone on the charger, and charging begins without any menu paths or app settings. Overheating can be a concern if the charger or device is not properly designed; avoid charging devices with thick cases or foreign objects on the charging pad.
