Can using Qualcomm’s Quick Charge 3.0 with a USB-C port set your phone on fire?

USB-C port and Quick Charge 3.0
USB-C port and Quick Charge 3.0

Most of the phones and tablets these days use the micro USB port. The problem with this port is that sometimes people insert the cable wrongly. This problem seems to have been solved with the USB-C port. If you remember, you read on this blog that Apple’s latest MacBook uses a USB-C port and to accommodate various connections it uses a USB-C Digital AV Multi port Adapter. With the new USB-C port and plug, there is no way of inserting the cable wrongly.

A lingering problem with mobile phone batteries is that it takes a while to charge them. Although the size of the smartphones and the batteries have been significantly increasing over the years, the way we charge our phone batteries has remained, sort of, primitive. This is something technologies like USB-C port and Quick Charge 3.0 are trying to solve. According to the description on the Qualcomm website, you can charge an average smartphone with Quick Charge 3.0 in 35 minutes.

The latest HTC 10 and LG G5 come with a USB-C port but they also have Quick Charge 3.0 technology on board so that if you want, you can charge these smartphones using both the technologies?

So what’s the problem?

The USB-C port can handle between 4.45 and 5.25 volts, but Quick Charge 3.0 can easily increase the voltage to 9 or 12 volts in order to charge the smartphones faster. If the specification is for accommodating a Vbus voltage of 4.45 or 5.25 volts, isn’t it a breach of specifications if the phone is charged at something like 9 or 12 volts? Worse, wouldn’t it set the smartphone on fire?

Precisely this is what conventional wisdom would say. If you are using a higher voltage with a component that is supposed to work at lower voltage, some or the other mishap is bound to happen. There is a concern that the Quick Charge 3.0 technology that is on board these new smartphones might be incompatible with the charging standards of USB-C3 .1 specifications, which in turn, may lead to unpleasant circumstances such as setting your mobile phone on fire.

Qualcomm says that there is no need to worry, according to this Android authority link. According to the reply published on this link, Qualcomm says, “Qualcomm Quick Charge is designed to be connector-independent. It can be implemented in a device that supports a variety of connectors, including USB Type-A, USB Micro, USB Type-C, and others. When an OEM chooses to implement Quick Charge into the device, they can configure the voltage to fit within the specifications of the USB Type-C standard. We have received no reports of user experience or device malfunction issues with or without USB Type-C connectors. At Qualcomm Technologies, we are continuously working to provide the best solutions for our customers and consumers. Qualcomm Quick Charge is a leading edge fast charging solution with more than 70 devices and 200 accessories supporting one of the two most recent versions of Quick Charge, with even more currently in development.”

So as per the official statement from QUALCOMM, using Quick Charge with your USP-C connector shouldn’t set your phone on fire.

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About Amrit Hallan
Amrit Hallan is the founder of He writes about technology not because "he loves to write about technology", he actually believes that it makes the world a better place. On Twitter you can follow him at @amrithallan

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