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This phone supports 21w charging, but it is only shipped with an 18W charger. (This charger seem to be able to give out 5V, 9 V (2A) and 12V (1.5A).)
Anyone have information on what version of USB-PD the phone supports? And what voltage is used to obtain 21w?
Has anyone got 21W charging working? As not all higher wattage usb-pd charges may support the 21W mode that this phone needs.
Well I can tell you do not use anything above Sony's recommended charging °W because anything above that - even with PD -- the device will intensely heat up.
JB2unique said:
Well I can tell you do not use anything above Sony's recommended charging °W because anything above that - even with PD -- the device will intensely heat up.
Click to expand...
Click to collapse
Sony report 21W charging. So I'm not asking to go above Whats recommended.
I am asking more about the actual charging methodology, as the usb-pd system can be a bit complicated. And even a 45W charger may not correctly 'handshake' at 21w unless it's got the right voltage to offer.
Anyone?
No one has tried using a higher wattage PD charger?
shock-UK said:
Anyone?
No one has tried using a higher wattage PD charger?
Click to expand...
Click to collapse
My Xiaomi 30W 1A1C charger (which supports USB PD 2.0 over the C port I believe) negotiates 7V/3A to hit the 21W.
JB2unique said:
Well I can tell you do not use anything above Sony's recommended charging °W because anything above that - even with PD -- the device will intensely heat up.
Click to expand...
Click to collapse
Winrahr said:
My Xiaomi 30W 1A1C charger (which supports USB PD 2.0 over the C port I believe) negotiates 7V/3A to hit the 21W.
Click to expand...
Click to collapse
Nice. That is an interesting combination. I thought it might do it at higher voltage.
How are you measuring it? I'm thinking of getting a usb measuring display.
shock-UK said:
Nice. That is an interesting combination. I thought it might do it at higher voltage.
How are you measuring it? I'm thinking of getting a usb measuring display.
Click to expand...
Click to collapse
Me too, I thought it'd be doing 12V/1.8A or something but 7V/3A makes sense. Definitely should make sure the cable is quality enough to support 3A. As an aside, the phone charges at 5V/1.5A for all non USB-PD compliant chargers.
I measured with a super cheap USB C meter that I've been sticking into random chargers for curiosity sake. Highly recommended :laugh:
Ok, ordered an Usb pd 3.0 charger today, the Arcanite one. As it also has a PPS option.
Also ordered as usb c power meter.
Let's see if it does the same voltage combination with this charger.
I just looked more into the USB-PD spec and I believe you'd need a PD3.0 compatible charger to hit the 21W since the charger needs to support PPS to hit 7V/3A. Otherwise I'm assuming it would negotiate to 5V/3A or 9V/2A if the charger doesn't have a 7V step.
So got a charger with PPS support (a USB-PD 3.0) an up to 30w charging. An Anker USB c to c cable with 60W support.
And using a satechi voltage / current measuring device.
But something isn't correct. It could be the usb-c voltage measure.
Using the supplied 18W charger, it's displaying 5.27V, 2.78A. that's roughly 15W. ( Picture attached).
Using the new 30W charger, it's displaying 6.44V, 2.77A. that's roughly 18W. ( Picture attached).
Still need to do more testing, not sure why I'm getting these readings. A bit below what I was expecting.
shock-UK said:
So got a charger with PPS support (a USB-PD 3.0) an up to 30w charging. An Anker USB c to c cable with 60W support.
And using a satechi voltage / current measuring device.
But something isn't correct. It could be the usb-c voltage measure.
Using the supplied 18W charger, it's displaying 5.27V, 2.78A. that's roughly 15W. ( Picture attached).
Using the new 30W charger, it's displaying 6.44V, 2.77A. that's roughly 18W. ( Picture attached).
Still need to do more testing, not sure why I'm getting these readings. A bit below what I was expecting.
Click to expand...
Click to collapse
What battery % is your phone at? You also have to remember that the closer the phone is to 100%, the charging speed will slow down.
I have an Anker 30W charger and can charge at speeds of at least 3500 mAh (based on Ampere reading).
The battery was around 35%. Yes you are right once it got over 50% the charging rate does show down a bit.
Also the Ampere app was displaying 3600 or 3500 as the current. But even if we calculate that, that's only about 18W. But that app isn't very good at measuring charging voltage or current.
The charger's specifications are attached below,
Actually, did anybody find a 21W charger compliant with our device??? (I mean really delivering 21W...)
Edit:
I've ordered the Samsung Ultra Fast Charge 25W (ref: EP-TA800XBEGWW)
It is PD 3.0 PPS and delivers 3.3-5.9V at 3A or 3.3-11.0V at 2.25A.
I hope that will work...
nreuge said:
Actually, did anybody find a 21W charger compliant with our device??? (I mean really delivering 21W...)
Edit:
I've ordered the Samsung Ultra Fast Charge 25W (ref: EP-TA800XBEGWW)
It is PD 3.0 PPS and delivers 3.3-5.9V at 3A or 3.3-11.0V at 2.25A.
I hope that will work...
Click to expand...
Click to collapse
I have the Samsung EP-TA800 25W charger from a Samsung Galaxy A71 5G. On low battery with my USB tester, I measured 22W (9V/2.5A) when charging my A71 but only 15W (5.5V/2.7A) when charging my Xperia 1 ii. Were you able to do better with this Samsung charger?
In fact, I have been testing all my PD chargers (about a dozen in total -- I might have a problem!), and none has been able to charge my Xperia 1 ii at more than 18W. That's certainly decent, but it would be nice to get the 21W that the hardware is capable of.
mikew99 said:
I have the Samsung EP-TA800 25W charger from a Samsung Galaxy A71 5G. On low battery with my USB tester, I measured 22W (9V/2.5A) when charging my A71 but only 15W (5.5V/2.7A) when charging my Xperia 1 ii. Were you able to do better with this Samsung charger?
In fact, I have been testing all my PD chargers (about a dozen in total -- I might have a problem!), and none has been able to charge my Xperia 1 ii at more than 18W. That's certainly decent, but it would be nice to get the 21W that the hardware is capable of.
Click to expand...
Click to collapse
I've not finished my tests, answers soon...
mikew99 said:
I have the Samsung EP-TA800 25W charger from a Samsung Galaxy A71 5G. On low battery with my USB tester, I measured 22W (9V/2.5A) when charging my A71 but only 15W (5.5V/2.7A) when charging my Xperia 1 ii. Were you able to do better with this Samsung charger?
In fact, I have been testing all my PD chargers (about a dozen in total -- I might have a problem!), and none has been able to charge my Xperia 1 ii at more than 18W. That's certainly decent, but it would be nice to get the 21W that the hardware is capable of.
Click to expand...
Click to collapse
nreuge said:
I've not finished my tests, answers soon...
Click to expand...
Click to collapse
I've finished my tests.
Both Sony charger 18W and Samsung EP-TA800 25W charger take 37 mn to charge from 20% to 70%. So, the extra power of the EP-TA800 cannot be used by our device, it does not provide the correct electrical intensity...
Finally, I've ordered the ARCANITE Premium PD 3.0 QC4 PPS 30W charger as mentionned above.
I've received the ARCANITE Premium PD 3.0 QC4 PPS 30W charger and I've done the tests.
To charge from 20% to 70%, the Sony charge takes 37 mn and the ARCANITE charger takes 36 mn (tests done in aiplane mode).
The small difference occurs below 50%.
nreuge said:
I've received the ARCANITE Premium PD 3.0 QC4 PPS 30W charger and I've done the tests.
To charge from 20% to 70%, the Sony charge takes 37 mn and the ARCANITE charger takes 36 mn (tests done in aiplane mode).
The small difference occurs below 50%.
Click to expand...
Click to collapse
Thanks for the update. It seems like the ARCANITE might not be delivering the 21W as hoped.
I also ordered yet another charger, the Baseus BS-C915, which allegedly supports PPS. The PPS designation appears in some pictures, but the specifications describe only a range of voltages (3.3-11V @ 3A).
With the Baseus, I get just under 18W (6.6V @ 2.7A) when charging my Xperia 1 ii. It's kind of strange that Sony claims 21W charging but doesn't include a 21W charger and doesn't even provide the specs for one!
Are there any other devices with the same power output? I have various Oneplus chargers, and a couple of Quick charge 3.0, but would like a spare fast charger.
MarkRobert said:
Are there any other devices with the same power output? I have various Oneplus chargers, and a couple of Quick charge 3.0, but would like a spare fast charger.
Click to expand...
Click to collapse
You can buy the xiaomi 27W QC4 charger it does 27-35W
realme x2 pro has 50W, so something there shud fit
I've tried various chargers but the SOC was >85% so it wasn't a proper test. With most charger (QC or PD) I've gotten 15W, including with my 65W PD laptop charger. With the original charger I got 20-22W. If it's important to check the power, I can wait until it's discharged and redo the tests, which I plan to do anyway.
For travelling, I find it a lot more useful to have the 36W (18W QC + 18W PD?) cheap Amazon charger with 2xUSB-A and 1xUSB-C, which has the same size as the original charger: https://smile.amazon.de/gp/product/B07WFDTJFR/
Let us know how you get on. I tried my Samsung 25w charger, Pixel 3 charger and the Motorola 18w charger. All of them charge at 12-18w only. Stock charger goes to around 27w
I've now tried all the chargers and powerbanks that I have, QC3 or PD. All of them cap out at 16W, even though they can deliver more. I got the original one to charge with 30W (at 60% SOC).
The original charger is marked QC3 but they are probably not following the standard.
From my understanding the Snapdragon 732g has Quick Charge 4+ support doesn't it ?
manu1991 said:
Let us know how you get on. I tried my Samsung 25w charger, Pixel 3 charger and the Motorola 18w charger. All of them charge at 12-18w only. Stock charger goes to around 27w
Click to expand...
Click to collapse
Yes, i've noticed the same. Around 27w max. Today i was charging my phone and observing the batt temperature. Kinda obvious, but the hotter the battery gets, the lower charging power it will deliver. Here in Brazil the temp this week is being around 36-42°C, so i put the phone over a bar of artificial ice. As the batt temp went under 35°C, the resultant "charging current" went to around 5500-6000mA. Doing the math, it was possible to arrive at the 27w result. (~4,5V x 6 = 27w).
When the batt temp was near 38~39°C, charging was down to 2000-2800mA (resulting to around 10-12w).
I also found something strange, it wasn't able to show the charging percentage with 2 decimals, as shown in this video:
https://www.youtube.com/watch?v=2Y8ja08uGEQ
Can someone give me a link for a u.s. charger for poco x3 device??
danieliswhattheycallme said:
Can someone give me a link for a u.s. charger for poco x3 device??
Click to expand...
Click to collapse
maybe this?
https://it.aliexpress.com/item/1005001516773316.html?spm=a2g0o.productlist.0.0.221f1870n5uSWW&algo_pvid=e82d72d7-5dac-413a-8e05-1657b2124e88&algo_expid=e82d72d7-5dac-413a-8e05-1657b2124e88-15&btsid=0b0a187916118446027031496e9a4e&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_
For me GAN 65W chargers (Baseus) are good and universal quick chargers.
I have made a quick test in the thread Chargers and Charging speed
Hi to all,
Can we charge S21U with 40W chargers? They are a lot chargers like Huawei, Xiaomi and etc... with 40W and more.
I believe the answer is yes - or at least probably. Most of those newer chargers are "Smart" in that they only provide the volts and amps that are needed by the device being charged. I may be wrong about that, but I don't think so - I don't think you have anything to worry about.
isko01 said:
Hi to all,
Can we charge S21U with 40W chargers? They are a lot chargers like Huawei, Xiaomi and etc... with 40W and more.
Click to expand...
Click to collapse
Pretty sure you can, I use a 45 watt "smart" charger on my NOTE 20 Ultra without any issue.
You can use any charger that supports PD (power delivery), AFC or QC2.0
Any 45 watt USBC charger out there is going to be PD standard so you'll be fine.
The downside is, it'll still only charge at 25 watts.
I am charging my s21U with an 40w charger, works without problem. not using 40 watts of course, but its working.
The phone, all phones in fact, will ONLY charge at it's highest speed the phone allows itself to receive, the charger doesn't matter, it can be lower or higher than what the device is recommended for. A lower power charger will just take longer to charge the phone, a higher power charger will just not charge at it's full power if the phone won't accept the full power from the charger.
I've been using the 90w charger from my HP Spectre X360 my S20 Ultra since I got it without a single issue, I still get about 2 days of use per charge on that thing, and now I've been using the same laptop charger on the S21 Ultra and it works just fine.
The phone fast charges normally, doesn't get super hot, works just fine, and I only need to keep laptop chargers around the house, it's great haha
I have a 45W USB-C PD port as part of an Anker PowerPort and also the 18W charger that came with my Pixel 5. Would I notice much of an improvement in charging speed or integrity/longevity of the battery by purchasing Samsung's 25W charger?
Tmel14 said:
Would I notice much of an improvement in charging speed or integrity/longevity of the battery by purchasing Samsung's 25W charger?
Click to expand...
Click to collapse
That's the charger I've been using w/ S21Ultra (25W from N10+) and I figured out I won't be needing anything bigger then that. Thanks to Samsung 'super fast charging' the 5Ah battery on s21U charges faster then 3.8mA Pixel 4a5G battery(with the same charger). +/- 1 hour and done!
Hello everyone, I want to know, what is the fastest charger for the S21 Ultra? And what is time to charge from 0% to 100%
Regards
Top charging capacity is 25W I believe. I use samsung's 25W charger and it works fine, I dont think anyone has dropped to zero, lowest I have gone is 25% and it's like 65 minutes
What about car charger? Do you think it will blow out a fuse?
FP_XDA said:
What about car charger? Do you think it will blow out a fuse?
Click to expand...
Click to collapse
Car chargers are not known for providing great charging speeds, so the phone will most likely charge slower (as in REALLY SLOW). Unles you find a car charger with some power.
just do a search on Amazon 45w pps car charger or 25w pps car charger, you found plenty.
make sure it said that it supports PPS
I got this car charger, it did trigger "super fast charging" on my S20, I haven't tried it yet on the S21. But it claims to be PPS, so no reason to believe it won't work on the S21 as well.
Amazon.com: USB C Car Charger, 51W Total PD PPS Rapid Charging Adapter [25W Super Fast Charging] for Samsung Galaxy Note 20/S20/Ultra/10/Plus/S10, MacBook, Laptop, iPhone 12/11/Pro/Max/Mini w/ 3A Type C Cable : Cell Phones & Accessories
Amazon.com: USB C Car Charger, 51W Total PD PPS Rapid Charging Adapter [25W Super Fast Charging] for Samsung Galaxy Note 20/S20/Ultra/10/Plus/S10, MacBook, Laptop, iPhone 12/11/Pro/Max/Mini w/ 3A Type C Cable : Cell Phones & Accessories
www.amazon.com
Go with the stock Samsung 25w brick and cable.
Just got a set for $20.
The 45 watt will increase the likelihood of Li plating and not charge much faster.
Avoid cold charging!!!
Best start temp for charging is 85°F at start.
Fast charging will not engage and/or disengages somewhere below 60F or above 99F.
Best charging temp is 85-95F.
joancolmenares said:
Top charging capacity is 25W I believe. I use samsung's 25W charger and it works fine, I dont think anyone has dropped to zero, lowest I have gone is 25% and it's like 65 minutes
Click to expand...
Click to collapse
Battery is 19Wh. 25W would be well under 1h.
FP_XDA said:
What about car charger? Do you think it will blow out a fuse?
Click to expand...
Click to collapse
Blow out a fuse? What fuse? 25W at 12V is 2Amps. Do you have a sub 2A fuse?
Just think a little before asking
henke2 said:
Battery is 19Wh. 25W would be well under 1h.
Click to expand...
Click to collapse
Except it doesn't charge at full rate the entire time.
dscline said:
Except it doesn't charge at full rate the entire time.
Click to expand...
Click to collapse
Yeah it throttles back at 80-90% to avoid damaging the battery.
That's one reason I do mostly midrange partial charges.
henke2 said:
Blow out a fuse? What fuse? 25W at 12V is 2Amps. Do you have a sub 2A fuse?
Just think a little before asking
Click to expand...
Click to collapse
I bought one online 25w and it blew out my fuse for the car power charger. Maybe it was faulty. (Not a 2A fuse, 15a fuse)
Anyone recommend a desk charging station with pps support?
hi with my ultra i got a free 25w samsung charger
i bought a 100w ugreen charger :
ingle-PortUSB-C1/C2：5V/3A 9V/3A 12V/3A 15V/3A 20V/5A 100W Max
USB-C3： 5V/3A 9V/2.5A 12V/1.88A 22.5W Max
USB-A： 4.5V/5A 5V/4.5A 5V/3A 9V/2A 12V/1.5A 22.5W Max
with a cable 100 PD
when connecting my tablet says same time to charge 100%
and ampere app shows this photos
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
do you know what is happening here?
I don't have any information to illuminate what's going on, but this sounds familiar enough that I think at least one or two other users in this section have reported something similar. Me, I try not to quick/fast charge any more than I have to, and I keep my battery between 25 and 75%, so I don't pay that close attention.
I haven't used Ampere. I assume the top is the charging current? The one on the left shows a higher current, 5.58 amps, vs 4.40 amps. Higher current for a given voltage means more power is being transferred, thus a higher charge rate...but even 5 amps is pretty high. That's why fast charging schemes use higher voltages, because a given conductor can usually handle a higher voltage better than it can handle a higher current.
[email protected]=15W
[email protected]=21W
[email protected]=36W
[email protected]=45W
[email protected]=100W
The Galaxy S8 is advertised to be able to charge at a 45 watt rate, max, so if this is true, a 100w charger wouldn't charge any faster as both devices would negotiate a max of 45 watts. This is assuming both the device and the charger limit the charge current; I imagine many devices will draw more power than they're rated, and many chargers will try to supply it, although the load might pull the voltage down.
V0latyle said:
I haven't used Ampere. I assume the top is the charging current? The one on the left shows a higher current, 5.58 amps, vs 4.40 amps. Higher current for a given voltage means more power is being transferred, thus a higher charge rate...but even 5 amps is pretty high. That's why fast charging schemes use higher voltages, because a given conductor can usually handle a higher voltage better than it can handle a higher current.
[email protected]=15W
[email protected]=21W
[email protected]=36W
[email protected]=45W
[email protected]=100W
The Galaxy S8 is advertised to be able to charge at a 45 watt rate, max, so if this is true, a 100w charger wouldn't charge any faster as both devices would negotiate a max of 45 watts. This is assuming both the device and the charger limit the charge current; I imagine many devices will draw more power than they're rated, and many chargers will try to supply it, although the load might pull the voltage down.
Click to expand...
Click to collapse
one photo is from a 100w charger the higher value one
the other photo is from the 25w samsung charger that came with my ultra
so i dont know why the tablet is showing the same time to full charge
roirraW edor ehT said:
I don't have any information to illuminate what's going on, but this sounds familiar enough that I think at least one or two other users in this section have reported something similar. Me, I try not to quick/fast charge any more than I have to, and I keep my battery between 25 and 75%, so I don't pay that close attention.
Click to expand...
Click to collapse
Do you have the text super fast charging 2.0 when charging your tablet?
I don't
waltdisneypixar said:
one photo is from a 100w charger the higher value one
the other photo is from the 25w samsung charger that came with my ultra
so i dont know why the tablet is showing the same time to full charge
Click to expand...
Click to collapse
Probably because your tablet can't charge at a rate any higher than 45W - 15v @ 3 amps.
V0latyle said:
Probably because your tablet can't charge at a rate any higher than 45W - 15v @ 3 amps.
Click to expand...
Click to collapse
That is correct it can only take 45w so 100w won't work. It will only limit the 100w charger down to 45w
waltdisneypixar said:
hi with my ultra i got a free 25w samsung charger
i bought a 100w ugreen charger :
ingle-PortUSB-C1/C2：5V/3A 9V/3A 12V/3A 15V/3A 20V/5A 100W Max
USB-C3： 5V/3A 9V/2.5A 12V/1.88A 22.5W Max
USB-A： 4.5V/5A 5V/4.5A 5V/3A 9V/2A 12V/1.5A 22.5W Max
with a cable 100 PD
when connecting my tablet says same time to charge 100%
and ampere app shows this photos View attachment 5659897View attachment 5659899
do you know what is happening here?
Click to expand...
Click to collapse
You shouldn't look up what a USB port can take. It also depends on what main board and battery can take. In this case s8 ultra is limited to max 45w. So your 100w charger won't go 100w on this tablet because it does not support it.
the charge circuits are limited to a max input wattage and voltage. to protect the device from being burnt out. it is not like the good old days where you could pump as many watts and volts you wanted into a device hoping that you didn't burn it up, blow the fuse or a diode. now everything is limited to a max input. a lot of it has to do with the brand x / universal chargers being sold. that claim they charger faster when really they don't.
The question is not about 100w
it is about 100w doing 45w vs 25w charger and same time charging
waltdisneypixar said:
The question is not about 100w
it is about 100w doing 45w vs 25w charger and same time charging
Click to expand...
Click to collapse
I don't know. They're both charging at about 5 amps which is honestly pretty high. Nothing indicates the actual charging rate in watts because it doesn't display the charger voltage. I will say I'm rather skeptical of strange off brand Chinese tech so it's possible you'd get better results with a different charger.
Question is neither is showing super fast charging 2.0
Fast charging is on in settings. It shows super fast charging but not 2.0
I got the same issue with my s22 ultra...The charger must have the right specs and the cable must be 5a. If not, you won't get super fast charging 2.0. This will only give 25w fast charging. I have a 65w ugreen charger that has all the right specs...It has 65w max on 1 port and when other devices are connected on the other ports it distributes the 65w over the ports. I used the cable that came with the tabs s8 ultra and got the same as you, not charging to it's full potential. Bought a ugreen 5a cable and now it shows super fast charging 2.0 on my tab s8 ultra and s22 ultra. The charger and the usb cable must be 100 % correct, otherwise you won't get max charging speeds.
termdj said:
I got the same issue with my s22 ultra...The charger must have the right specs and the cable must be 5a. If not, you won't get super fast charging 2.0. This will only give 25w fast charging. I have a 65w ugreen charger that has all the right specs...It has 65w max on 1 port and when other devices are connected on the other ports it distributes the 65w over the ports. I used the cable that came with the tabs s8 ultra and got the same as you, not charging to it's full potential. Bought a ugreen 5a cable and now it shows super fast charging 2.0 on my tab s8 ultra and s22 ultra. The charger and the usb cable must be 100 % correct, otherwise you won't get max charging speeds.
Click to expand...
Click to collapse
i have the ugreen 100w charger with the 2m pd100 5A cable ( it says 5A in the end of the cable ) that came as a pack in ali but not seeing super fast charging 2.0.
Mine was exactly the same. Bought a different ugreen cable and the 2nd cable worked. Dont know why it worked. Looks the same as the one that came with the charger, just a longer cable
waltdisneypixar said:
i have the ugreen 100w charger with the 2m pd100 5A cable ( it says 5A in the end of the cable ) that came as a pack in ali but not seeing super fast charging 2.0.
Click to expand...
Click to collapse
The cable makes absolutely no difference in the actual charge rate. Being rated for higher current just means the conductors are larger.
When you connect the device to the charger, the two negotiate a mutual rate.
termdj said:
Mine was exactly the same. Bought a different ugreen cable and the 2nd cable worked. Dont know why it worked. Looks the same as the one that came with the charger, just a longer cable
Click to expand...
Click to collapse
I just bought a baseus 100pd with digital monitor that tells the W. Let you know when i try
It is the cables! Cables! Cables! Cables! -- It's a dirty word!
Please see
Superfast charging + emark cables -- are they needed?
So I have a 45W charger, thinking about purchasing a 65W charger. I know The Tab S8 Plus only goes to 45W. My question: are there any advantages to using an emark enabled cable? I'm getting super fast charge notice with a 60W cable, no emark...
forum.xda-developers.com
If you have a normal 5A cable, all PD charges are throttled to 25W (or less). Your tablet (at best) will show "Super fast Charge" and you will see something like 5A @ 4.12V when running Ampere. This is the power going into the battery -- the PD Charger is probably delivering something like 4A @ 5V. Around 20W going into the battery. I assume the "missing" 5W is powering the tablet - i.e. Ampere only shows what is going into the battery.
To get more than 25W, you need special "e-mark" chipped cables. These allow current higher than 5A to be delivered. They will be generally be rated by power -- 100W -- not current. I use
https://www.amazon.com/dp/B09G5XQG3T
This will allow the PD charger to run higher than 25W and you will see "Super Fast Charging 2.0" for charge status.
When I use the 100W cable, the tablet charges iin "Super Fast Charging 2.0" mode, and Ampere tells me the battery is receiving 7A @ 4.12V, or ~ 30W. Because I'm using the tablet at the same time I again assume some additional power is going to powering the tablet -- but that Ampere is only showing what is going into the battery. So maybe this bumps it up to 35W total. I have 45W and 65W power delivery bricks, so I assume the ~ 35W-ish delivery is being controlled by the tablet.
Note: The cable "in the box" with my Tab S8+ was NOT chipped, and was limited to 25W.
take care,
Joe
drjoe1 said:
It is the cables! Cables! Cables! Cables! -- It's a dirty word!
Please see
Superfast charging + emark cables -- are they needed?
So I have a 45W charger, thinking about purchasing a 65W charger. I know The Tab S8 Plus only goes to 45W. My question: are there any advantages to using an emark enabled cable? I'm getting super fast charge notice with a 60W cable, no emark...
forum.xda-developers.com
If you have a normal 5A cable, all PD charges are throttled to 25W (or less). Your tablet (at best) will show "Super fast Charge" and you will see something like 5A @ 4.12V when running Ampere. This is the power going into the battery -- the PD Charger is probably delivering something like 4A @ 5V. Around 20W going into the battery. I assume the "missing" 5W is powering the tablet - i.e. Ampere only shows what is going into the battery.
To get more than 25W, you need special "e-mark" chipped cables. These allow current higher than 5A to be delivered. They will be generally be rated by power -- 100W -- not current. I use
https://www.amazon.com/dp/B09G5XQG3T
This will allow the PD charger to run higher than 25W and you will see "Super Fast Charging 2.0" for charge status.
When I use the 100W cable, the tablet charges iin "Super Fast Charging 2.0" mode, and Ampere tells me the battery is receiving 7A @ 4.12V, or ~ 30W. Because I'm using the tablet at the same time I again assume some additional power is going to powering the tablet -- but that Ampere is only showing what is going into the battery. So maybe this bumps it up to 35W total. I have 45W and 65W power delivery bricks, so I assume the ~ 35W-ish delivery is being controlled by the tablet.
Note: The cable "in the box" with my Tab S8+ was NOT chipped, and was limited to 25W.
take care,
Joe
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