In today's globalized era, international travel has become a trend. Portable home appliances designed for global use have also become a sales hotspot. To better serve our users and improve travel convenience, wide-range voltage is an important technical feature.
Some portable devices in our product line can be used globally. These appliances can operate with 100-240V voltage. Some customers ask what this means. This article explains the definition of wide-range voltage for these products.
Our product line is divided into two categories:
Products with built-in batteries
Products powered directly from wall outlets
This article focuses on common questions about battery-powered products.
Battery-powered products include portable coffee machines, portable coffee grinders, etc. These products are typically designed to charge with 5V=2A power. This 5V=2A refers to our recommended charging specification. In practice, any current supply above 1A can charge our devices.
When you look at power adapters that can connect to Type-C cables, you'll see that the power adapter itself is wide-range. It can automatically convert to the appropriate output power as long as it plugs into the outlet. However, different devices have different power output requirements:
Standard charging: 5W-10W (5V=2A or 9V=1.1A)
Fast charging for phones and tablets: 10-30W (9V=3A or 12V=2.5A)
Laptop-specific: 65W-200W (20V=3.5A)
So as long as your power adapter outputs 5V=2A, and our device is marked as DC5V, any adapter with 5V output capability (regardless of whether the current output is 2A or 3A) can charge our devices.
Using an adapter with power higher than the original adapter's rating (such as using a 65W adapter to charge a 10W device) typically will not cause damage, but compatibility should be verified in certain situations.
Modern certified power adapters and Windspro electronic devices have built-in protection mechanisms:
The device determines current draw: The power rating of a power adapter (charger), such as 65W, represents its maximum power capability, not a forced output. The actual power used is determined by the connected device itself.
No communication mechanism: Our products are designed for 5V output. Without communication protocols, adapters only provide 5V output.
Voltage is key: The critical factor is that voltage must match. If a Windspro device's rated voltage is 5V, then a 65W adapter supplying power in 5V mode is safe (ensure the adapter has 5V output capability).
While high power itself is harmless, when using universal adapters, one thing must be confirmed:
Voltage Must Match
This is the most important point.
If voltage is too low: The device may not work properly or may not start at all.
If voltage is too high: This will cause permanent damage! Ensure your 65W adapter supports the voltage required by the device (for example, if the device needs 5V, the 65W charger must be able to provide 5V output).
Modern USB-C PD chargers typically have multiple voltage output capabilities (5V/9V/12V/15V/20V) and can automatically match. However, if you're using an older round-port 65W laptop power supply with only a single high voltage output, and the small device needs low voltage, then they cannot be mixed.
Your device (such as a portable coffee machine or grinder) has an internal charging management chip that determines the maximum input power the device can accept.
Windspro products currently only support up to 10W charging:
If you charge with a 10W charger, that's the fastest speed.
If you charge with a 65W charger, the device will only draw 10W of power. The remaining power is wasted, and charging time will not be reduced.
Think of it like a water pipe: the charger is the water source, power represents water volume,
but the device's charging port and internal circuitry are the pipe.
You cannot forcibly expand the pipe.
Key Points:
Higher-power chargers can be compatible with low-power devices.
Only when the charger's power meets or exceeds the device's maximum supported power can the fastest charging speed be achieved.
For more detailed information, please contact the Windspro team.
