Samsung Fast Wireless Charging 2.0: Everything you need to know

Wireless charging offers a convenient way to charge your phone, but with speeds limited to 10W or lower, it isn't the fastest way to top up your devices. But with the Galaxy S10 series Samsung is overhauling the standard. Samsung was one of the first manufacturers to offer wireless charging on its phones, and with Fast Wireless Charging 2.0 it is rolling out charging speeds on par with wired charging.

That's a big deal, as the main issue with wireless charging thus far has been how slow it is in context to wired solutions available today. Here's what you need to know about Fast Wireless Charging 2.0, and how you can get the most out of it on your Galaxy S10e, S10, and S10+.

How does wireless charging work anyway?

Qi

Wireless charging relies on resonant inductive coupling to transfer power between two devices. There are two electromagnetic coils — one in the wireless charger and the other on your phone — and an electromotive force is generated when they get close enough, which is how the battery on your phone charges.

There were two competing standards for wireless charging — Powermat's PMA and the Wireless Power Consortium's Qi — and Samsung has offered support for both on its devices from the beginning. But at the start of last year, Powermat announced that it was joining the WPC to work on the Qi standard, signaling an end to PMA. The decision was driven mostly by the fact that Apple chose the Qi standard starting with the iPhone 8.

What is wireless charging and how does it work?

Fast Wireless Charging 2.0 delivers a 12W charge

One of the main criticisms of wireless charging is that it is significantly slower than wired charging. With the rise of fast charging standards like Quick Charge and Dash Charge, you don't have to leave your device plugged in overnight to fully charge the battery — the latest protocols charge your phone's battery from flat to 100% in just over an hour.

Fast Wireless Charging 2.0 is almost as fast as wired charging.

By contrast, wireless charging solutions we've seen so far maxed out at 7.5W, so if you're looking for a fast way to charge your phone in the middle of the day, you're better off just plugging it in. With Fast Wireless Charging 2.0, Samsung is looking to fix that by offering 12W wireless charging.

The first wireless charger based on Samsung's new protocol is the $99 Wireless Charger Duo Pad (opens in new tab). The wireless charger looks a lot like last year's offering, but the pad on the left now offers 12W fast charging.

With Samsung's wired charging still at 15W, Fast Wireless Charging 2.0 is able to deliver speeds that are close to what you get when you plug in your phone.

Exclusive to the Galaxy S10 series

Right now, Fast Wireless Charging 2.0 is limited to the Galaxy S10 series. If you have a Galaxy S10e, S10, or an S10+, you'll be able to wirelessly charge your device at 12W using the new Wireless Charger Duo Pad.

See at Samsung (opens in new tab)

Harish Jonnalagadda
Senior Editor - Asia

Harish Jonnalagadda is a Senior Editor overseeing Asia at Android Central. He leads the site's coverage of Chinese phone brands, contributing to reviews, features, and buying guides. He also writes about storage servers, audio products, and the semiconductor industry. Contact him on Twitter at @chunkynerd.

10 Comments
  • After paying over $1000 for the GS10+ phone, I'll need to spend another 10% of that additionally, to replace the Duo I already have. Ugh. I haven't had this Duo charger for even a year yet.
  • Meh. Wait for a sale on Amazon. I picked up my Duo charger brand new for $50. The current model will hold you over I'm sure.
  • I recall reading Samsung Fast Wireless Charging (1.0) is 10W. If so, 2.0 being 12W, minus the heat loss, is likely less than 20% faster than 1.0. Anyone?
  • Only way to tell is by doing a charge test. You are still losing about of the power through induction waste, but it's hard to calculate what the loss will be with the higher wattage. One video test I saw took almost 3 hours to charge the S10+, but I don't know how accurate that is.
  • I'm perfectly happy placing my phone on last year's padded wireless fast charger when I get home. Still in all, I'm glad to see additional progress in wireless charging.
  • In the article, it states that Samsung was one of the first to offer wireless charging. Actually, Nokia was the first with the Lumia 920 in 2012. I had the 925 on T-Mobile with the wireless charging back and I loved it. I miss my old 925; but far my best phone I ever owned.
  • The article is correct - Samsung was one of the first - not THE first. That said, Samsung did make a Qi charging pad and back for the Droid Charge in 2011 (Galaxy S 4G LTE), but the Lumia was the first that had it built in. So yes, I'll say the article is very accurate.
  • I have two Samsung Qi chargers and four old Nokia Qi chargers. Between the fast, semi-fast, totally wireless, and slow - I don't know that my battery ever has a chance to fully discharge. Especially the tank on my Note 9. But I am glad to see Qi is getting improved and widely adopted!
  • Nothing really to crow about as Huawei Mate 20 Pro is 25% higher with 15W wireless and more than 100% higher with a wired 40W than Samsung's 12W wireless and 18W wired charging. This is curiously absent from the glowing Samsung review.
  • Correction: Samsung utilizes 15W wired charging, so their flagships have charged slower than QC (18W) for many years already. Your Mate 20 Pro would charge up to 166% faster for low battery percentages, and the 15W fast wireless charging is as fast as Samsung's wired charging before accounting for heat loss. I personally have the OnePlus 7 Pro as my daily driver. 30W wired charging and no wireless charging.