Smartphone "Fast Charging" Not Working
4.5
The phone charges very slowly, taking 4-5 hours for a full charge instead of 1 hour.
Symptoms
- Slow charging
- "Charging" instead of "Fast Charging"
- Long ETA
Possible Causes
- Incompatible cable
- Weak power brick
- Software setting
Step-by-Step Fix
1
Use Original Charger
Ensure both the brick and cable are rated for your phone's fast charging tech (e.g., PD, QC, VOOC).
2
Enable Fast Charging in Settings
Some phones (like Samsung) have a toggle under Battery > More Battery Settings.
3
Clean the Port
If the data pins aren't making a good connection, the phone will default to slow 5W charging.
When to See a Technician
Cheap "gas station" cables often only have two wires (power) and lack the data wires needed to negotiate fast charging.
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