Qi2 chargers

[MPJ81]

Does anyone have any recommendations for a qi2 wireless charger that can fast charge an S25+ with a qi2 case with a watch and buds?

I've seen that Samsung might be releasing such a thing but there's no sign of it for sale anywhere. 

I bought a third party charger that was advertised as qi2 compatible "ultra fast". Whilst it's magnetic, it charges at a snails pace. My ancient Samsung duo charger does a better job without qi2.

[Removing Watch Faces]

I've tried the "ESR for Samsung Galaxy S25 Plus Phone Case, Compatible with MagSafe, Magnetic Case for S25+", the "TAURI for Samsung Galaxy S25 Plus & S25 Cases, Compatible with MagSafe", and the "Spigen Ultra Hybrid MagFit Designed for Galaxy S25 Plus Case [Qi2 Certified/Magnet for Galaxy]", and all of them work with the "ESR Qi2 3 in 1 Wireless Charging Station with CryoBoost, [Certified] Phone-Cooling Wireless Charger & 15W Qi2 Charger Stand" and the "Anker MagGo iPhone 16 MagSafe-Compatible Wireless Charger Stand, 15W Fast Magnetic Wireless Charging Station, Qi2 Certified 360° Charger".

I use the 'Spigen Ultra Hybrid MagFit Designed' case on my Galaxy S25+, and my wife uses the 'TAURI for Samsung Galaxy S25 Case' on her Galaxy S25.

When I was doing my testing, some of the cases I tried had a protective rim around the camera lens area of the case, so the case wouldn't lie flat on the charger. Best charging speed I experience with those chargers was 7.5W. 

How long did you wait and watch the wattage meter after you attached you phone to the charger? When I attach our S25 or S25+ phones to the 'ESR Qi2 3 in 1 Wireless Charging Station', it takes about 15-20 seconds for the meter to show the 20-21W charging speed, and the phone to adjust the full charge estimate. On the 'Anker MagGo iPhone 16 MagSafe-Compatible Wireless Charger Stand', it takes between 30-45 seconds.

Have to tried connecting your ESR Qi2 car charger to a 45W or higher power supply in your house? If the meter shows it's charging at 20-21W, the problem could be the power in your car. My 2025 Blazer has a charging pad in it, and it and it's a Qi charger which I believe only does 7.5-10W. That's not a problem for me, as I only use the charger on longer trips. I've never tried connecting it to the USB-C port as the infotainment system connects via Bluetooth to my Galaxy S25+ so I'm able to use Android maps via the phone.

[acaf]

I did wait a while, and indeed th power starts low and in less than a minute it reaches 12W or so, then stays there. Like I said, if I do it without a case I do get 21W from the ESR, so the problem is not the power adapter I'm using I'm the car. 

I notice all the cases you tried are slightly slimmer because they have a raised edge around the cameras. The spigen tough armor I'm using is completely flat and about 1mm above the cameras. I will try another case from spigen. The ultra hybrid is great, but I want one with a kickstand so I'll try the ultra hybrid s first.

[Removing Watch Faces]

The Spigen case I use is thicker than the TAURI case my wife uses. My Spigen is flush with the lenses on my Galaxy S25+. The TAURI case is thinner than the Spigen case, and we don't have a problem with either on either of our Qi2 chargers.

I'd check connecting the ESR Qi2 car charger with a 45W or higher power supple inside the house to make sure it's not the charger.

[acaf]

I received the spigen ultra hybrid and it works! I get 21 W from the car to the ESR charger, and according to accubattery the phone charges at 12W (4V, 3A), so problem solved, I'm returning the tough armor.

I had to give up the kickstand. The spigen ultra hybrid S case has one but it's even thicker than the tough armor and, without surprise, not advertises as qi2 ready.

Thanks for your help.

[MPJ81]

An official Samsung 3 in 1 qi2 charger is now appearing on the John Lewis app with an option to be notified when available.

[MaxanderG]

I tried the Anker MagGo Wireless Charger.

It lock to the magfit case I got for my s25+ & require quite a bit of force to remove it. 

It does infact charge about 14W but unfortunately it overheat in minutes throttling it back to around 3-4W so not a good option. 

If you want wireless fast charging you need to get a charger with a fan, like the Samsung Wireless Quick Charger Pad that can handle the heat problem inherent to wireless fast charging.

[acaf]

My phone also does that after some time, maybe 10 minutes, with the ESR Qi2 car charger. It goes from charging at nearly 15W to about 3W, and the charger goes from drawing around 21W from the car to 9W.

So, qi2 works as it should in the sense that the charger adapts to the phone charging conditions. If the phone would stay cool, charging would go on at 15W.

So I just ordered the ESR Qi2 car charger with a cooling fan and we'll see how long it can go without overheating the phone and throttling. In my case, throttling happens when the phone reaches 40-41 degrees Celsius, according to accubattery. I'm hoping the airflow prevents the charging pad and the phone from reaching those temperatures at least for an hour or so.

[HanceSi]

I totally get the frustration—so many Qi2 chargers claim to be “ultra-fast,” but then you end up with a snail’s pace charge. I ran into the same issue and finally found something that actually delivers. There’s a Qi2 charger I’ve been using that’s certified, charges fast, and even has a built-in on/off switch to stop trickle charging and prevent overheating. It was actually tested in a recent “Battle of the Best Qi2 Chargers” comparison video against brands like iOttie, Mophie, and Scosche—and it came out on top. If you Google ‘Battle of the Best Qi2 Chargers YouTube,’ you’ll find the video breaking it all down. Definitely worth looking into if you want something that actually works. Have you found anything else that’s been solid for Qi2?

[acaf]

Just saw the video. As most reviews it's pretty useless with regards to the charging speed, it only shows they charge, which they all do. Also, having a switch that you turn off manually when the phone gets hot is really a pain and completely against the logic of adaptive QI2 charging.

I replaced my ESR with the cryoboost version with a cooling fan, and it does make a big difference In how long it can charge before it overheats. I also checked that once the phone reaches 41 degrees celsius charging slows down and the phone cools quickly  (the fan really works), and the charger goes back to 15W charging. It's a great charger, I get around 60% charge per hour with my s25 ultra 5000 mAh battery.

The only thing I could not figure out is why sometimes charging starts at 15W right away, and sometimes not. I'm sure it's the phone that "decides" that and the charger only follows, but if it's not temperature related it must be the power management in the phone. Asides from that, I'm pretty happy with the ESR Qi2 cryoboost car charger. The fan is really quiet, by the way, really hard to hear it especially with the car noise, and the mount system is better than those in the video, IMO.

[JonQ]

While the Cryoboost tech seems like a fantastic idea, it doesn't look like this will cover my wants. I'm looking for a tri charger for my Galaxy Watch 6, phone and Galaxy Buds. Something in the vain of what Samsung (likely canceled) was about to put out themselves, see pic.