flat phone charger pad

Some flat pads automatically switch charging modes (for example, 5W, 7.5W, 10W and 15W) based on a device’s power needs. Other pads deliver a higher fixed output when paired with the manufacturer’s or recommended adapter.

Many magnetic-style wireless chargers list compatibility with phone cases up to about 3 mm thick.

Common features include magnetic alignment rings or strong magnets for positioning, plus anti-slip surfaces or rubber rings to keep devices steady while charging.

Qi certification is commonly listed, and newer products may list the Qi2 standard for compatibility and interoperability.

Charging speed varies by phone model and the adapter used. Many pads auto-adjust across lower modes (5W–15W), and pairing the pad with a higher-wattage adapter (for example, a 20W unit) typically produces faster results.