The Myth of Higher Wattage:
A Charging Speed Test Analysis

When charging a mobile phone, users often mix up different chargers. You may have noticed that charging speeds vary significantly. A common misconception is that "the more power the charger has, the faster the phone will charge." Is this really the case?

1. The Experiment: Samsung A56 Test

Figure 1: 3rd Party Test Report on Charging Power

Above is a test report from a third-party lab, testing a Samsung A56 phone using original Samsung chargers ranging from 25W to 65W.

The results are revealing. While the Samsung GaN 45W charger achieved the highest peak power at 26.52W, the difference between the various chargers was minimal.

Conclusion: Regardless of whether you use a 45W or 65W charger, the actual charging power for this specific phone stabilizes between 22W and 27W.

2. Why the Limit Exists: The "Gatekeeper" IC

The fact is that the charger's power does affect speed, but the impact is capped. This limit is determined not by the charger, but by the phone's internal Battery Protection IC (Integrated Circuit).

Furthermore, the phone intelligently adjusts charging speed based on battery percentage. You will often observe that speed drops significantly after the battery reaches 80%. This is "Trickle Charging," a self-protection mode to extend battery lifespan.

3. The Glob-el Solution: The Right Fit

While a higher-wattage charger isn't always faster for every device, high-wattage capability is essential for multi-device environments (e.g., charging a laptop and phone simultaneously).

Understanding this, Glob-el provides a diverse range of power modules tailored to different applications. Our intelligent modules automatically identify the connected device and deliver the optimal power—whether it's 20W for a phone or 65W for a laptop.