How quick is Samsung's 25W super fast charging technology?

Last updated: May second, 2019 at 15:33 UTC+01:00

Samsung introduced what it calls 'super fast charging' with the 5G model of the Galaxy S10 this year, finally bringing an upgrade from the Quick Charge 2.0-based fast charging it has been offering on all of its phones since 2014. Super fast charging outputs 25 watts of power and uses the USB Power Delivery standard, which can provide up to 100 watts of ability to a device, as showcased by Xiaomi recently. Regular fast charging on Galaxy phones provides 15 watts of ability, so super fast charging is a considerable upgrade, just how much faster is it in practice?

That's what we wanted to find out, and while we don't take access to a Galaxy S10 5G, we practise accept the Milky way A70, which has a 4,500 mAh bombardment and super fast charging support like the S10 5G. We first charged the Milky way A70 with the supplied 25W charger – we started charging it when it had iii percentage battery left and checked the charge level after 30 minutes, 45 minutes, and an 60 minutes. We then charged it with a 15W Samsung charger from an older Galaxy phone, once again starting when it was at 3 percent charge and checking at 30, 45, and sixty-minute intervals.

25W super fast charging has a clear reward

How much faster was the 25W charger? Well, it didn't turn out to be every bit quick as we had hoped, but it even so made some noticeable difference. Afterwards 30 minutes, the 25W charger was able to take the telephone upwards to 33 pct charge, while the 15W charger merely charged it to 26 percent. The disparity was quite small at the 45-infinitesimal marking: It charged to 51 percent with the 25 watt charger and 49 percent with the 15W charger.

But an hour of charging saw the 25W charger take the lead again, taking the device to 67 percent charge while the 15W charger only charged it to 60 percent. Fifty-fifty the Galaxy S10+ charges to 67 percent in an hour of charging with the 15W charger, simply it has a iv,100 mAh bombardment, so you can imagine how much faster information technology would be with the 25 watt charger if simply Samsung had equipped the standard Milky way models with super fast charging.

Below is a table with the charging figures if you're getting confused with all that text. Retrieve that we started charging each device when information technology was at iii percent charge.

samsung 25w super fast charging

Again, super fast charging on the Milky way A70 doesn't brand as much of an impact as you might expect, but it does help where it matters most: the commencement one-half hour of charging when your telephone is well-nigh downward to zero percentage accuse. And every little scrap matters with large batteries on flagship devices, every bit top-of-the-line smartphones are usually quite power hungry and need constant top-ups of the battery, making charging speeds a very of import cistron.

Super fast charging needs to come to more than Galaxy phones

When volition Samsung make super fast charging a standard on all its phones? Well, 1 tin can promise that will happen by the end of this year and that every Galaxy telephone from 2020 onwards will come up with super fast charging instead of regular fast charging. We can understand the company took things slowly later on the Galaxy Note 7 battery fiasco, merely information technology'due south high fourth dimension it started matching the charging tech on its phones with what every competitor has been offering to its consumers for the last couple of years.

What practice you recall of Samsung's 25W charging tech based on the figures you see above?