Qi2 vs Qi1 wireless charging: Key differences and what they mean for you

tech.hindustantimes.com:

Wireless charging technology has steadily gained ground in everyday life, offering a convenient alternative to the hassle of tangled cords. However, the trade-off has often been slower charging speeds compared to wired options. With the introduction of Qi2 by the Wireless Power Consortium (WPC), the landscape of wireless charging is set for a change. Qi2 promises to address the key limitations of its predecessor, Qi1, by improving efficiency and aligning the technology with evolving user needs. Let's break down what has changed between the two standards and how these changes affect your charging experience.

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The Qi1 standard, the original wireless charging method, operates using electromagnetic induction. This requires a device to be precisely aligned with the charging pad to transfer power effectively. In practical terms, users often had to adjust their devices to find the optimal alignment, which, while not a major inconvenience, could disrupt the experience and slow down the charging process.

Qi2, on the other hand, introduces a significant upgrade in the form of the Magnetic Power Profile (MPP). This feature integrates magnets into both the charging pad and the device, ensuring perfect alignment each time you place your phone or device on the charger. This advancement enhances the efficiency of energy transfer by reducing energy loss, making charging faster and more reliable.

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When it comes to charging speed, Qi2 sets a new minimum baseline. Qi1 allowed for up to 15W wireless charging, but Qi2 raised this to 15W as the minimum standard, ensuring a consistent charging experience across all devices. The magnetic alignment of Qi2 also minimises energy waste, which, in turn, can lead to faster charging times. Additionally, the Qi2 standard is designed to support future high-wattage charging,