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Qualcomm Quick Charge 4.0 rumoured to support 28W

by Mark Tyson on 10 November 2016, 11:03

Tags: Qualcomm (NASDAQ:QCOM)

Quick Link: HEXUS.net/qadayt

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Qualcomm will shortly reveal its Snapdragon 830 processor with built-in support for Quick Charge 4.0 technology, according to sources speaking to Fudzilla. The headline change brought along by Quick Charge 4.0 will be even more rapid charging of your smart device battery, with "charging speeds of 28W". The current Quick Charge 3.0 tech tops out at 18W but is capable of recharging a 2,750mAh battery past 70 per cent capacity in just 30 minutes.

The insider sources talking to Fudzilla indicated that Qualcomm Quick Charge 4.0 chargers will support 5V/4.7A to 5.6A, or 9V/3A, or similar configurations. Qualcomm's technology intelligently identifies the maximum amounts of power your device battery can take at any given time and thus optimises the charging process. Furthermore, it will prevent dangerous potential overheating by lowering the charging energy if your battery starts to heat up. Version 4.0 of Quick Charge uses a particular refinement dubbed INOV (Intelligent Negotiation for Optimum Voltage) to fine tune device charging.

Looking around at competing tech, Huawei's 22.5W Super Charge (as used by the new Mate 9 to provide a 'full day charge' in 20 minutes) and Oppo's 20W VOOC stick to a low voltage (5V) and use a high current (up to 5A) for fast-charging.

Sources indicate that the first devices shipping with Qualcomm Quick Charge 4.0 will be based upon Snapdragon 830 processors, expected to debut early in 2017. Qualcomm should officially announce and detail the new rapid charging tech ahead or at that same time.



HEXUS Forums :: 8 Comments

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Boo! Hiss!

I wish phone makers would just stop supporting these manufacturer specific charging standards and stick to USB Power Delivery (which is good for up to 100W by the way).
EndlessWaves
Boo! Hiss!

I wish phone makers would just stop supporting these manufacturer specific charging standards and stick to USB Power Delivery (which is good for up to 100W by the way).
That 100w number for USB power delivery doesn't take into account how fast the battery can charge, it's just a brute force, “how much power can we put through this cable before it starts overheating” number. These specs are about moderating how much of that 100w goes in so your phone doesn't blow up.
I hear that Google might put a stop to these in Nougat anyway
HW90
EndlessWaves
Boo! Hiss!

I wish phone makers would just stop supporting these manufacturer specific charging standards and stick to USB Power Delivery (which is good for up to 100W by the way).
That 100w number for USB power delivery doesn't take into account how fast the battery can charge, it's just a brute force, “how much power can we put through this cable before it starts overheating” number. These specs are about moderating how much of that 100w goes in so your phone doesn't blow up.

But wouldn't it be nice if you didn't have to have a special charger, and all that was taken care of internally? Plug into any USB, and it automatically pulls the maximum safe current/voltage based on what the source can provide? Use any charger with any phone? Sigh… “I have dreamed a dream, but now that dream is gone from me.”
While it would be ideal to have a standard for these quick charging methods they are really useful to have. My Xiaomi Mi5 has Qualcomm Quick charge 3.0 and with a compatible charger it's brilliant - I only really use it when I'm short on time (I suspect using it all the time wouldn't be much good for the battery) but it's nice to know you can have a charge will last a full day of use in just 15 minutes.