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My Charging Module is charging too slowly. What can I do?Updated a month ago

The SP Connect Charging Module supports wireless charging with up to 15 W. However, the actual charging power may vary depending on the smartphone, power source and conditions of use. This is normal with wireless charging and does not necessarily indicate a defect.

Why charging speed may vary

  • Smartphone compatibility & charging protocol: Not every smartphone supports the same wireless charging profiles. Some devices generally charge more slowly wirelessly or reduce the charging power sooner.
  • Temperature management: When temperatures rise, for example due to direct sunlight, navigation or running apps, many smartphones automatically reduce the charging power to prevent overheating.
  • Power supply: If the power source does not provide sufficient power, less energy will be available to the Charging Module.
  • Simultaneous power consumption: Navigation, high display brightness, mobile data or music can consume enough energy that the battery only charges slowly.
  • Battery level and battery protection features: Many smartphones charge faster at a low battery level and automatically reduce the charging power at higher battery levels, particularly from around 80%.

Tips for improving charging performance

1. Use a suitable power source

  • Use a power source with Power Delivery (PD) or Quick Charge (QC 2.0 / 3.0 / 4.0) and sufficient power output.
  • A power source with insufficient output can significantly limit charging performance.

2. Position the smartphone correctly

  • Make sure the smartphone sits correctly and flat on the Charging Module.
  • The charging coils can only work efficiently when the smartphone is correctly aligned.

3. Reduce heat

  • Keep the smartphone and Charging Module out of direct sunlight whenever possible.
  • If possible, charge in a cooler environment. Around 20 °C is ideal.
  • If the smartphone becomes very warm, allow it to cool down briefly. Charging performance will often increase again afterwards.

4. Reduce power consumption while charging

  • Enable adaptive brightness or reduce the display brightness.
  • Close any background apps that are not required.
  • When using navigation, use offline maps where possible.
  • Disable wireless connections that are not required during your ride.

5. Check charging performance at a low battery level

  • If possible, evaluate charging performance at a lower battery level, for example below 30%.
  • Many smartphones automatically reduce the charging speed as the battery becomes more fully charged.
  • At a battery level of around 80% or higher, charging may be significantly slower.

6. Check battery protection features

  • Many smartphones feature functions such as optimised charging, adaptive charging or battery protection.
  • These functions may reduce the charging power or intentionally limit the charging process.
  • If necessary, check the battery and charging settings on your smartphone.

If your smartphone is still charging too slowly

If the charging performance remains significantly too low despite following these steps, please contact our Customer Support at [email protected].

Please provide us with the following information:

  • Order number or proof of purchase
  • Full delivery address
  • Smartphone model
  • Charging Module being used
  • Details of the power supply, such as the power adapter, power output, connection method and cable being used
  • Please also let us know how many percentage points your smartphone charges within a specific period of time, for example: “The smartphone charges by approximately 10% within 30 minutes.”

Summary

Slower wireless charging is often caused by temperature, the power supply, smartphone settings or high power consumption during use. Using a suitable power source, correctly positioning the smartphone and reducing power consumption can usually improve charging performance significantly.

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