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Cell phone chargers. They're all basically the same, right? You plug it into the wall, you throw a USB cable on

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it, then you plug it into the the lightning or micro USB or whatever other

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connector there is on your phone and call it a day or night if you charge

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your devices at night, which would make sense because well, look, never mind that. The point is, easy, right? Wrong.

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And you know what else is wrong? Teasing upcoming videos like part five of whole

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room water cooling when realistically they're at least two weeks out. And yet,

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I'd do it anyway.

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Cooler Master's Casemod World Series is your opportunity to show off your

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modding skills and win great prizes. Entries closed February 7th, 2015. Click

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now to learn more. So, four years ago,

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life was relatively simple, at least as far as 5V chargers for phones and

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tablets went. You had your USB ports on your computer or very low-end wall warts

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that output 500 milliamps. the typical ones and the ones bundled with your

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phones which were usually 1 ampish and premium aftermarket ones and the bundled

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ones with tablets which were usually two or 2.1 amps. Now even in those days

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though you sometimes needed interoperability between your charger

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and the device being charged in order to take advantage of the best possible

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charging rates because beefier componentry is required to prevent the

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device and/or its battery from being damaged by the charging process. So

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phone manufacturers like Apple and Samsung used little signaling tricks

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that would allow their chargers to communicate with their devices to let

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them know, hey, it's okay to draw more power. Fast forward to 2012 and the

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introduction of Qualcomm Quick Charge 1.0, an attempt to standardize faster

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charging so more customers could leverage it, at least those customers

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whose phones contained Qualcomm processors. Version 1.0 to was all about

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optimizing charge times with 5V 2 amp adapters that you already owned with a

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fancy power management IC built into the device itself. All the user needed to

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know was that his or her gadget was charging faster, especially when it was

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very low. Version 2.0, 0 which started showing up in devices like the HTC 1M8

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in early 2014 takes the ondevice hardware a step further and allows it to

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accept up to 3 amps from a 5volt power

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supply and even other voltages as well up to 12 whoops volts. But the tricky

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thing is that while both the devices and the chargers are backwards compatible

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with older lower power ones to take full advantage of quick charge 2.0 0. We need

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drastically different power sources that can deliver the aforementioned greater

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current and varying voltages. So, if you want to be sure it supports quick charge

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2.0, check the box. It'll say quick charge 2.0 and it'll come with a pretty

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steep price tag for up for a freaking wall wart. So, the question then is, is

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it worth the investment? Well, Qualcomm claims that compared to conventional

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charging, so 5V 1 amp, quick charge 2.0

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0 can fill your battery up to five times more in the same time. And even compared

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to Quick Charge 1.0, it's twice as fast.

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But their results, while surely very scientific, were done on a bare battery

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as far as I can tell, and therefore might not really reflect exactly the

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results we'll see in the real world. So, I brought this test to the real world,

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suckers. I used a Nexus 6 from Google, manufactured by Motorola, and tested it

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in four different scenarios. First, with an Apple 1 amp charger that I've had

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since I got my iPhone 4. Second, with a 2 amp wall wart that I got with the

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Samsung Galaxy Tab 10.1. Third, with the

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quick charge 2.0 charger included in the Nexus 6's box. And finally, with a

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third-p party quick charge 2.0 0 charger from Pure Gear to see if the rated

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current at the various charging voltages makes a difference on this device anyway

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since they're actually a touch lower than Motorola's bundled turbocharger.

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Maybe that contributes to Pure Gear's smaller size as well, actually. Now,

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before beginning, I needed a testing methodology. Obviously, I couldn't just

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power down the phone and plug it in and stare at it until it was finished. So,

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here's what I did. I ran a 3D game with the flashlight on to drain the battery

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until the phone powered off. Then I plugged it in briefly, powered it back

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on, and let it sit at the home screen until it reached 3%. Any lower and it

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would shut down again. I put it in airplane mode and closed all apps except

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for battery monitor widget, which I configured to pull the battery level

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once every minute. Because a big part of the benefit of quick charge is not

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necessarily the overall charge time to 100% but rather the charge time to go

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from empty to a reasonable level when you're desperate. And we need more plot

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points than just start and end in order to get that. So to ensure we were

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getting the best possible experience, a 1 ft microB USB cable was used since the

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cable length can have an impact on charging power. And I ended up with the

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graph that you see here. Each charge test was run twice to ensure that

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nothing weird happened. So, I consider these results accurate to within plus or

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minus a few percent. And overall, I learned a few things. Number one, quick

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charge 2.0 is faster than other solutions. Number two, most 2 amp

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chargers out there, you can see I have quite a few of them here, are either

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incapable of handshaking with many devices and enabling faster charging

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rates, or they just plain suck. Most of

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them topped out around 1.5 amps. Number

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three, all the 1 amp chargers I have lying around deliver more than 1 amp,

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including the Apple one that I used for my benchmarks, which was the closest to

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1 amp out of the bunch. And number four, thanks to Qualcomm standardizing this

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stuff, a third-party quick charge 2.0

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charger will deliver basically the same results as a firstp party one, something

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that hasn't always been the case in the past with proprietary standards. So,

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Cool Beans, faster charging is good, right? I mean, it's not quite as fast as

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I was hoping, but it's definitely faster. Actually, not always. It's great

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if your phone is almost dead and you've got a blind date in half an hour and you

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need to make sure you can, you know, text your friends from the dinner table

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if it's not going well. Or if it is going well, he's so wonderful. Uh, but

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juicing up your battery with a higher current charger generates more heat,

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which can negatively impact the battery's overall lifespan. how many

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charge and discharge cycles it can handle. And given that so many batteries

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are non-replaceable these days, this is a bit of a concern. So, whenever you're

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plugging in for the night, even though you have support for quick charge 2.0,

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I'd recommend sticking with a lowspeed charger. So, thanks for watching, guys.

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Like this video if you liked it. Dislike it if you thought it sucked. Leave a comment if your feelings were more

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complicated than this. Let me know what were you expecting out of all of this.

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Um, do genuinely want to read your comments. As always, you can find a link

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in the video description to support us. You can buy a cool t-shirt like this one. You can send us a monthly

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bookmark to one with our affiliate code. So whenever you're shopping for quick chargers or whatever else the case may

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be, we get a small kickback from you making that purchase. That kind of thing

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helps us out a lot. Thanks again for watching and as always, don't forget to

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subscribe.