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Upcoming Qi-enabled chargers will do their mojo from greater distances

Posted: , by Peter K.

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Upcoming Qi-enabled chargers will do their mojo from greater distances
Developed by the Wireless Power Consortium (WPC), the Qi wireless charging standard is supported by a vast array of smartphones and allows us to ditch those USB charging cables for good. Regarded highly by many, Qi is about to become even more useful – at the moment, you can transfer power to you device only if it's placed within 7-8mm of the Qi-enabled charger, but the latest specification to the standard, version 1.2, will enable the technology to charge devices that are placed further.

This means that you'll be able to charge the device even if it's placed up to 1.77 inches (45mm) away from the Qi pad. This has been achieved by prototype chargers and receivers. That's already a pretty sweet improvement, but it's getting better. See, Qi v1.2-enabled charger will be compatible with older Qi v1.1 devices, but the power transfer will be only available from a limited range – 30mm. In both cases, however, your device won't have to be placed directly on the Qi charger itself in order to get powered. That's already enough to sweeten the deal, right?

“It is clear there is room to safely and efficiently push the distance and power limits within the Qi specification,” claimed Menno Treffers, WPC's chairperson. “And with more than 50 million receivers in the market and 500 certified products, Qi is well-positioned to continue its market leadership as it drives forward the global wireless charging ecosystem of manufacturers, innovators and end-users."

According to WPC, the newest specification for the wireless standard supports multiple coils on a power inverter, which paves the way for more affordable Qi chargers that transfer power to multiple devices. Don't get too excited, however, as there is no definite timeline on when the first Qi v1.2 pads will arrive.

In the meantime, feel free to check out our pick of curious Qi chargers!

source: WPC via AndroidCentral

9 Comments
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posted on 01 Aug 2014, 02:33 2

1. Finalflash (Posts: 1700; Member since: 23 Jul 2013)


THIS IS SO IRRITATING. Where the hell is A4WP and actual wireless charging and not this "amazing" 4.5 cm future wireless charger?

posted on 01 Aug 2014, 03:29

3. vincelongman (Posts: 1139; Member since: 10 Feb 2013)


Agreed, I remember read that A4WP and PMA were merging, but I have seen much devices with either

posted on 01 Aug 2014, 07:17

5. NexusPhan (Posts: 463; Member since: 11 Jul 2013)


And what is the range promised of A4WP? If I recall correctly, their development was simply multiple devices (Qi just did it with V1.2) at higher power and no mention of an actual range. I could be wrong but I'll need a link to believe it.

posted on 01 Aug 2014, 03:25 1

2. vincelongman (Posts: 1139; Member since: 10 Feb 2013)


Nice! Especially for people who want to use cases

What about speed?
As far as I know the best Qi chargers are 1A, which is much less compared to the best wired which are 2A

posted on 01 Aug 2014, 07:21

6. NexusPhan (Posts: 463; Member since: 11 Jul 2013)


Samsung Qi charger is rated at 2 amps but I'm not sure I believe it. A good question. 1 amp is sufficient for me but I certainly understand the advantage and importance of 2 amps.

posted on 01 Aug 2014, 08:01 1

7. vincelongman (Posts: 1139; Member since: 10 Feb 2013)


Yea, my Nexus 5's wired charger is 1A, havent had any issues with it
But of course I wont mind if it was faster

Thanks I didnt know Qi charging was capable of 2A

posted on 01 Aug 2014, 08:43

8. WahyuWisnu (Posts: 1001; Member since: 29 May 2014)


I believe the Qi charger have 50% efficiency rate. Meaning a 2A usage of power, but 1A receive on the phone.

posted on 01 Aug 2014, 10:15 1

9. Augustine (Posts: 707; Member since: 28 Sep 2013)


According to a paper at WPC, it's more efficient than the using the typical USB cable:http://goo.gl/KXO3A5

posted on 01 Aug 2014, 03:44

4. WahyuWisnu (Posts: 1001; Member since: 29 May 2014)


I really hope that one day all this wireless charger, can charge up to 50cm. So that I can put my phone in my pocket while driving, and won't left my phone in the car because I'm charging it. and the passenger can use the phone while using it.

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