No, wireless charging is generally slower than wired charging. Here’s a detailed comparison of the two in terms of speed and efficiency:
1. Charging Speed: Wired vs. Wireless
Wired Charging:
- Faster: Wired charging often supports advanced fast-charging technologies like Quick Charge or USB Power Delivery (USB-PD), with power outputs ranging from 18W to over 100W (in high-end chargers).
- Direct Power Transfer: Wired connections transfer energy directly to the device with minimal loss, maximizing efficiency.
Wireless Charging:
- Slower: Wireless chargers typically range from 5W to 15W, though some high-end models now offer speeds up to 30W. Even so, this is slower compared to wired fast chargers.
- Energy Loss: Wireless charging is less efficient due to energy lost during transmission, which often converts into heat.
2. Fast Charging Capabilities
- Wired Charging: Can charge a device from 0 to 50% in as little as 15-30 minutes, depending on the charger and device compatibility.
- Wireless Charging: Achieving similar speeds would take longer, even with higher-output wireless chargers, because of the inefficiencies in energy transfer.
3. Factors Affecting Wireless Charging Speed
- Alignment: Improper alignment between the device and the charging pad can reduce efficiency and slow down charging.
- Heat: Wireless charging generates more heat, which can slow charging speeds to protect the battery.
- Compatibility: Some devices are limited to lower wireless charging speeds, even if the charger is capable of more.
When Is Wireless Charging Fast Enough?
- Overnight Charging: Wireless charging is sufficient for situations where speed isn’t a priority.
- Top-Ups at Desks: Great for maintaining a charge throughout the day in places where the device can stay on the pad for an extended period.
When to Use Wired Charging
- When you need a quick power boost (e.g., before leaving the house).
- For devices with large batteries or when fast charging is essential (e.g., in emergencies).
- To reduce overall energy waste, as wired charging is more efficient.
Conclusion
Wired charging is significantly faster and more efficient than wireless charging in most scenarios. While wireless charging excels in convenience and aesthetics, it’s not the go-to option for those who prioritize speed.