wireless charger charge time - Samsung Galaxy S8 Questions and Answers

So when I bought my s8+ they bundled in the official Samsung wireless charger, I've only just started to use it, I don't know if it's just me but at times it seems to charge the phone quicker if not as fast as the adaptive fast charger plug. I never thought that would be the case so I'm surprised but happy.

Probably it's just the placebo effect but still, it's nice you think of it that highly.
Can you try to time both methods and share your results? I'm wondering what the actual charging times are.

Charging with cable takes about 1.5h, with wireless charger 2x times more.

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[Q] recently Verrrry slow charge: Charger/cable got damaged?

At first when I got my nexus 10, it was charging quite nice, overnight would charge from 30% to 100%, but recently it stopped doing so, for example tonight after 8 hours it got from 35% to 70%, all stock: same cable, same charger.
Also, sometimes I used to put it on charge while using it, like when watching video, and it used to charge even if slow, now when doing this it says charging but the battery level goes down....
can the stock charger or cable be damaged? why did it stop charging fast overtime?
I used the its usb cable and charger few times to charge my new OnePlus, which requires a high ampere charge, can this cause the charger to overwork and then damaging its power output?
I read about the pogo charger does the job better, but I also read about the 28/24 usb cables, and I guess that the stock cable is 28/28, they did it like this to sell pogo charger cables. but the main issue here is that with the same combination it was better a month ago....
I have multiple chargers around the house with various amperages that I use for all devices, except I do have a bit of fear using my oneplus chargers with others for your same reason
About a month ago we decided it was worth it to buy the pogo dock on eBay for our nexus ten so it can be used as a digital picture frame when not in use, great decision, it seems to charge faster than any of the other chargers and get to see pics of our newborn all day as well
Consider either this or buying a new cable/charger for much less money. Either way my best guess is this is what you need, but you can always try a factory reset or reflash stock to see if it is a software issue
mcbyte_it said:
At first when I got my nexus 10, it was charging quite nice, overnight would charge from 30% to 100%, but recently it
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Mine had the exact same problem after about 15 months use. Combine the slow charging with the atrocious battery life and you're left with a barely usable tablet. I later bought the pogo cable and switched chargers to no avail. Then I just said screw this and sold it.
My nexus is 3 months old, so it can't suffer from battery wear down in such little time.
Will try resetting the whole thing and try again....

[Q] Charging

Hey all, haven't been able to find an answer for this. So I'll open a new thread. Now the question. The phone seems to take a long time to charge. Is it possible for me to use my Note 4's quick charger or can anyone recomend a faster charger for this phone? Charging it with Note 4's 2a charger wont damage the battery? Thank you.
I use a 2.1 out and it charges in about an hour and a half
Charging isn't fast and it seems that if the phone gets warm, it draws less power then too - so on a warm day, it can feel like it's taking years.
Would have been nice to have had wireless charging support and/or turbo charging, but alas not.
jonmorris said:
Charging isn't fast and it seems that if the phone gets warm, it draws less power then too - so on a warm day, it can feel like it's taking years.
Would have been nice to have had wireless charging support and/or turbo charging, but alas not.
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Doesn't the phone support quick charging? But Huawei haven't bundled the appropriate charger?
Doesn't appear to. I've got a Qualcomm Quick Charge 2.0 adapter and it doesn't seem any faster, nor say fast charging.
There's a quirk, when the battery shows 100% it actually still keep charging for another 30 minutes. All tests showed that it took 3hours+ to fully charge it. So quick charge my ass.
So just to update, I have tried charging it with note 4's fast charger and it charges the phone from 20 to 100% in about an hour and a half. Which imo isn't that bad. With the included charger, it took me around 2 and a half hours... Huawei really should have included a charger with higher amp, 1 is way to low.
Winston1989 said:
So just to update, I have tried charging it with note 4's fast charger and it charges the phone from 20 to 100% in about an hour and a half. Which imo isn't that bad. With the included charger, it took me around 2 and a half hours... Huawei really should have included a charger with higher amp, 1 is way to low.
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It's sadly very common for phones to ship with poor chargers (1A and even lower), but then again - some phones these days come with NO charging adapter, assuming you'll have a ton of them anyway.
I use a 2.1A 5V charger, but I've tried the faster ones (that can output 9V) and it doesn't speed things up, so while it can charge faster with a better PSU, it won't ever charge as quick as many other flagships. Mind you, has the G4 been given full support yet? Likewise, the Z3 is down as supporting Quick Charge 2.0 on Qualcomm's website, but then turns out to be only some variants. Makes me wonder if the Z3+ supports it in every guise.
Not sure what the reasoning is for devices that could support faster charging not actually allowing it, especially if the manufacturer could profit from selling faster chargers separately.
jonmorris said:
It's sadly very common for phones to ship with poor chargers (1A and even lower), but then again - some phones these days come with NO charging adapter, assuming you'll have a ton of them anyway.
I use a 2.1A 5V charger, but I've tried the faster ones (that can output 9V) and it doesn't speed things up, so while it can charge faster with a better PSU, it won't ever charge as quick as many other flagships. Mind you, has the G4 been given full support yet? Likewise, the Z3 is down as supporting Quick Charge 2.0 on Qualcomm's website, but then turns out to be only some variants. Makes me wonder if the Z3+ supports it in every guise.
Not sure what the reasoning is for devices that could support faster charging not actually allowing it, especially if the manufacturer could profit from selling faster chargers separately.
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I read an article about Huawei declining fast-charge for "battery-purposes" so it can have a longer life cycle. But i think Huawei made an exception about the Huawei Honor 7.
I had an Samsung before and never had problems with fast-charging whatsoever.
My P8 was full in about 2 hours with an 2.1 A charger, while my Samsung Galaxy Mega 6.3 took 1,5 hours.
the screenshoot took from Huawei P8 & P8 Max Launching Event 2015 said that p8 has quick charge at min 21.30 but they didnt talk about that in the event
https://www.youtube.com/watch?v=9uLe3q4wHjE
Here's a quick charger for the Huawei P8 : http://www.amazon.com/Adaptive-Charger-Charging-voltages-charging/dp/9713256832
I did not buy it, but it says it charges at 9V 2.1A
IkeaKast said:
Here's a quick charger for the Huawei P8 : http://www.amazon.com/Adaptive-Charger-Charging-voltages-charging/dp/9713256832
I did not buy it, but it says it charges at 9V 2.1A
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I think this adaptor isn't safe to p8max.. I will try another charger but only 5v with higher amp that will be safe for sure
Now i charge with stock from 3%to100% in about 2.5 h and the phone didn't tell me to remove charger for more half ahour!!
Sent from my HUAWEI P8max using XDA Free mobile app
sehooo said:
I think this adaptor isn't safe to p8max.. I will try another charger but only 5v with higher amp that will be safe for sure
Now i charge with stock from 3%to100% in about 2.5 h and the phone didn't tell me to remove charger for more half ahour!!
Sent from my HUAWEI P8max using XDA Free mobile app
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I dont know, its 9V 2.1A, so it is quick charge. But i dont know if it is for MAX. I can charge fast. maybe 1.5h/2h?

Slow regular charging with stock charger and 3rd party cable, while fast charging wor

I have a 6 foot cable from monoprice that I like to use. I noticed something odd... it works fine with fast charging (reports it in the notifications and chargers in an hour or so). However, when I turn off fast charging, it charges extremely slow. It estimates around 6 hours to charge from empty, but only gets to around 70% after 8 hours.
On the other hand, with the stock cable, I think it reported around 4 hours or less to charge (without fast charge), and was at 100% by the time I woke up. I've done this test several times, same room and signal quality, etc. Even switching the cables back and forth show the different estimated charge time.
Why is this? I mean the exact cable can fast charge just fine... and I like to slow charge overnight to avoid battery heat.
I did try shorter 3rd party cables and am having the same effect, which is quite annoying. Again, same charger, fast charge works, slow charge barely works.
johnnyz86 said:
I have a 6 foot cable from monoprice that I like to use. I noticed something odd... it works fine with fast charging (reports it in the notifications and chargers in an hour or so). However, when I turn off fast charging, it charges extremely slow. It estimates around 6 hours to charge from empty, but only gets to around 70% after 8 hours.
On the other hand, with the stock cable, I think it reported around 4 hours or less to charge (without fast charge), and was at 100% by the time I woke up. I've done this test several times, same room and signal quality, etc. Even switching the cables back and forth show the different estimated charge time.
Why is this? I mean the exact cable can fast charge just fine... and I like to slow charge overnight to avoid battery heat.
I did try shorter 3rd party cables and am having the same effect, which is quite annoying. Again, same charger, fast charge works, slow charge barely works.
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I've noticed the same thing with my 10ft cable from Monoprice. It charges fine on fast charge but slow on regular charging. I also noticed that this cable charged slowly on my previous phone, an LG G3. I think it has to do with the resistance of the cable due to different gauge wire and wire length. The regular charge is affected by this more than the fast charge, since the fast charge is pushing more amperage anyway. At least, that is my theory on what is going on.
I have noticed this as well with a 10 foot monoprice cable.
About two weeks ago I purchased a 10 foot Anker Cable and it doesn't have this issue. Overall I think the Anker cable and it's connections feel like they are better quality than the monoprice or the stock cable.

Fast Charge on regardless of disabling it?

I have tried multiple 2.0 chargers (OEM and Stalion), and it seems my phone always wants to Fast Charge, regardless of disabling it under Settings. Sometimes it will honor the setting, but most of the time not.
Anybody else have this issue? I am aware I can just use a regular charger and it will force cell to charge normal rate, but did not know if this was maybe firmware related. I am on PB5.
Do you mean QuickCharge 3.0 charger? Our phones can only do up to QC 2.0 (9V), which is still a very rapid charge. QC 3.0 is very similar to QC 2.0 but charges in more fine grain steps so it can charge even faster.
I don't have the answer to your question though. Mine seems to be doing fine when I choose not to use QC feature. This was with PB5. I'm now on the latest firmware and didn't try using the normal speed charging. It's just too slow, but I would use a regular 5V charging if I do it overnight.
I just keep a fan next to where I charge my phone (with QC 2.0) and use that fan to cool the phone. It keeps the battery temperature in check.
hp79 said:
Do you mean QuickCharge 3.0 charger? Our phones can only do up to QC 2.0 (9V), which is still a very rapid charge. QC 3.0 is very similar to QC 2.0 but charges in more fine grain steps so it can charge even faster.
I don't have the answer to your question though. Mine seems to be doing fine when I choose not to use QC feature. This was with PB5. I'm now on the latest firmware and didn't try using the normal speed charging. It's just too slow, but I would use a regular 5V charging if I do it overnight.
I just keep a fan next to where I charge my phone (with QC 2.0) and use that fan to cool the phone. It keeps the battery temperature in check.
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Thanks for replying. I forgot that S7E OEM charger is only 2.0. Thanks for clarification. I have only 2.0 chargers, I just brainfarted.
The issue I have is on both 2.0 OEM and Stalion chargers, so it points to a cell issue. I charge mine overnight normally, so I don't really need the QuickCharge capabilities, plus batteries normally last longer when getting a slower charge - not sure if that applies to S7E as well. Plus if a battery temp can be lowered charging one method compared to QuickCharge, I would think the battery life should be longer. That's my opinion, though it would be nice to know for certain.
Good idea on fan as I am sure every little bit counts Hopefully someone can chime in that can try QC 2.0 OEM charger with QuickCharge disabled a few times, as it works here and there but normally does not honor the Disabled setting.
mugsy77 said:
Thanks for replying. I forgot that S7E OEM charger is only 2.0. Thanks for clarification. I have only 2.0 chargers, I just brainfarted.
The issue I have is on both 2.0 OEM and Stalion chargers, so it points to a cell issue. I charge mine overnight normally, so I don't really need the QuickCharge capabilities, plus batteries normally last longer when getting a slower charge - not sure if that applies to S7E as well. Plus if a battery temp can be lowered charging one method compared to QuickCharge, I would think the battery life should be longer. That's my opinion, though it would be nice to know for certain.
Good idea on fan as I am sure every little bit counts Hopefully someone can chime in that can try QC 2.0 OEM charger with QuickCharge disabled a few times, as it works here and there but normally does not honor the Disabled setting.
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Battery lasting longer - you mean the life of the battery, or hours per charge? I don't think using 9V or 5V has any effect on how full it really fills it up. As long as you keep it long enough after it shows 100%. I think of it like filling up gas for your car, quick charge just fills it up quicker and it may bubble but if you do it long enough it should have the same amount fuel in the tank. If you have a USB volt-amp meter you'll notice once the phone reaches 80% it slows down the charge current.
I know some believe that charging slowly will increase the life of the battery but how slow is slow enough, I don't know. Some believe too slow might cause crystallization. I don't know which would apply, but I'm pretty sure the heat will kill the battery.
At one point I even used a 0.8A charger which is the weakest one I can find in my collection. With that there's almost no heat but charges really slow. lol.
If you are charging overnight why not just get an extra normal charger that doesn't have the QC capability? I thought everyone has enough 5V standard USB charges laying around nowadays, from Apple products and all the past phones...
Keep the OEM fast charger for emergencies or travel or on the go or in the car. Because when you are traveling you'll want to charge as quickly as you can even though it could cook the battery a little bit.
Sorry I can't be any help and I'm really not answering to your original question.
No, you made good points man. Really appreciate it

USB Wall Outlet Charger

I'm looking at avoiding powerbricks in my house. I've been upgrading the outlets in my house to USB's simular to this: https://www.lowes.com/pd/Legrand-Radiant-15-Amp-Tamper-Resistant-Outlet-3-1-USB-White/50253183
would I still be able to charge my phone and if so how fast? This would be the pain reason why I don't get the 6t and end up with a pixel or something.
thanks.
I have a similar setup in my kitchen and had a 3T. You can definitely charge your phone using an outlet like that and USB A to USB C cable, but it will charge slower than if you were using the wall plug and cable that come in the box with the phone. In my understanding the fast charging through VOOC/Dash charging is enabled by the wall plug, which does the heavy lifting of converting the power. This approach is supposedly better for the long term battery life. It definitely keeps the phone cooler and running smoother if you use it while charging. That said, I doubt that charging through a non-OP charger is bad for the phone or battery. It will just take longer.
How much slower? I think I set this thread up wrong, Im sorry.
Sorry I don't have any metrics. I mostly used the charger that came with my 3T. I'd say if you want the phone mostly charged in a short amount of time you need to use the charger that comes with the phone. If you aren't going to be using it for a while you can use any other USB C cable or charger you have available.

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