We're not talk about other chargers we're talking about Samsung's 45W charger, which according to Samsung, IS PD 3.0 compliant.
It was the link to Samsung's webpage showing the 45W charger specs.
Does anyone have the 45 watt charger?
- Thread starter encelle111
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It was the link to Samsung's webpage showing the 45W charger specs.
I think the overall conversation leads to the same conclusion. The 45watt charger isn't worth spending your hard earn money since you won't get a significant increase in charging times.
Mooncatt
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You initially said any charger that is PD 3.0 compliant would work, in the context of the original post looking for an alternate 45W charger. So yes, we are talking about other chargers here. Yes, any PD 3.0 charger will work in some fashion, but it's been demonstrated that so far, no third party PD 3.0 chargers also have the needed PPS protocol to achieve the full 45W speeds.
I'm sure some will come out in due time.
Mooncatt
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Pretty much. I usually say buy the strongest charger possible for future proofing, but that's changing. There's now a number of proprietary fast charging protocols, plus the ever changing USB standards. At this point, it's no problem charging a battery, and higher power charging from where we are now will have negligible benefits in speed unless the battery technology changes to something more robust.
Unless you just want to be on the bleeding edge and also risk damaging your battery (by using extreme charging rates and constantly draining your battery low enough to make it worthwhile), I now think it's best to stick with what's in the box or equivalent. There are still some exceptions, like the ROG Phone II that gets the 18W charger in China, but the global version gets the 30W charger. Considering it has a 6,000 mAh battery, that would see a big difference in charge rates.
j_hansen
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No you can use it on the 6.3 Note but it will just only charge it at 25w, same as the one in the box
BigCrimsonTX
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I got mine from Samsung from the promotion. I use it when I'm in a time crunch. Its fast but ultimately if it was not free I would not buy it.
Ok, in bullet form, to keep it simple.
-Samsung uses the USB PD spec, however they implemented the programmable power supply (PPS) mode for the phones and chargers.
-PPS is part of the spec, but has been rarely used until now, meaning most chargers you can find on Amazon/wherever do not support it.
-PPS allows for more/variable voltage and amperage instead of the standard fixed profiles. This is done so voltage can be increased and amperage lowered at the beginning of the charging cycle, which lowers heat output
-The Note 10+ supports up to 45W charging on a PPS charger, the Note 10 only supports 25W.
-Both phones will charge at up to 15W when using a USB PD charger that does not support PPS. doesn't matter the rating of the charger. It can be a 60W charger but will only charge the Note 10's at 15W if it does not support PPS.
-both phones will charge at 25W on the stock charger in the box
- with any USB PD PPS charger, including Samsung's, the Note 10+ will charge at up to 45W, the Note 10 will charge up to 25W, that is the maximum for that phone.
-in terms of raw charging, the 45W charger does not give significant speed increases over the 25W charger because the phone only charges at 45W for the first 30% or so, after 30% it reverts back down to 25W. This is done to keep heat down.
-This means that unless your phone is under about 30% battery, you will not see any improvement at all on the 45W charger compared to the 25W charger.
Personally, I would not buy the Samsung 45W charger if your only intended purpose is to charge your phone with it. If you also have a bunch of USB-C devices that can charge at higher wattages, it might be worth it. i.e. I have an XPS 13 laptop that charges at 45W, the Samsung charger would charge that laptop at 45W just fine. so in a scenario where you have multiple devices that could take advantage of the faster charging speed, and it allows you to only carry one charger that can charge those devices at maximum speed, it might be worth the cost to you. If you're buying it just for the phone, it is not worth it.
-Samsung uses the USB PD spec, however they implemented the programmable power supply (PPS) mode for the phones and chargers.
-PPS is part of the spec, but has been rarely used until now, meaning most chargers you can find on Amazon/wherever do not support it.
-PPS allows for more/variable voltage and amperage instead of the standard fixed profiles. This is done so voltage can be increased and amperage lowered at the beginning of the charging cycle, which lowers heat output
-The Note 10+ supports up to 45W charging on a PPS charger, the Note 10 only supports 25W.
-Both phones will charge at up to 15W when using a USB PD charger that does not support PPS. doesn't matter the rating of the charger. It can be a 60W charger but will only charge the Note 10's at 15W if it does not support PPS.
-both phones will charge at 25W on the stock charger in the box
- with any USB PD PPS charger, including Samsung's, the Note 10+ will charge at up to 45W, the Note 10 will charge up to 25W, that is the maximum for that phone.
-in terms of raw charging, the 45W charger does not give significant speed increases over the 25W charger because the phone only charges at 45W for the first 30% or so, after 30% it reverts back down to 25W. This is done to keep heat down.
-This means that unless your phone is under about 30% battery, you will not see any improvement at all on the 45W charger compared to the 25W charger.
Personally, I would not buy the Samsung 45W charger if your only intended purpose is to charge your phone with it. If you also have a bunch of USB-C devices that can charge at higher wattages, it might be worth it. i.e. I have an XPS 13 laptop that charges at 45W, the Samsung charger would charge that laptop at 45W just fine. so in a scenario where you have multiple devices that could take advantage of the faster charging speed, and it allows you to only carry one charger that can charge those devices at maximum speed, it might be worth the cost to you. If you're buying it just for the phone, it is not worth it.
Mooncatt
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Oh!
And let's not forget about the cables. You need a USB 3.2 certified cable to get the maximum speeds. Not any old cable will do, not even if it's a USB C-to C cable. USB 3.1 and lower cables are not built to communicate with the devices, nor can they handle the higher power.
And let's not forget about the cables. You need a USB 3.2 certified cable to get the maximum speeds. Not any old cable will do, not even if it's a USB C-to C cable. USB 3.1 and lower cables are not built to communicate with the devices, nor can they handle the higher power.
Mr-Guy
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I use the 45w brick to bump charge in a hurry, my note 10+ slows down as the battery nears full charge like the 25 does. I don't fully charge the phone either shooting for 85% and no lower than 40%. Even doing that the phone lasts a LONG time.
I got it for free with the bundle, but the way I use it I would probably have bought it anyway.
I got it for free with the bundle, but the way I use it I would probably have bought it anyway.
That's that's not quite true. any USB 3.1 cable capable of 5gbit speeds and higher must be e-marked, according to the USB-PD spec. the emark is how it communicates the speed, if a cable isn't emarked it can be at most USB 2.0.
Mooncatt
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I got my terms mixed up. There's USB 3.2 Gen 1 and Gen 2 at play here. Gen 1 is the renamed USB 3.0 spec, and power requirements are not as high.
E-mark is required to be compliant with 3.1 Gen 2, but optional for Gen 1. That alone does not indicate the ability to negotiate the full 45W. The e-mark is just a chip to negotiate with the device and power supply abilities of that cable. It's like saying a car has an engine. True, it does, but that alone doesn't mean that engine puts out 300HP. I've seen Gen1 compliant cables for sale with and without the e-mark chip. So ignore the whole e-mark thing.
The thing to make note of is that it's 3.2 Gen 2 or above (there's some newer standards coming out), and will be rated for 10Gbps. That's what can get you the full charge speed with the Samsung 45W charger. Thankfully the vast majority of name brand cables available are now Gen 2 compliant.
This was heavily discussed when the Note 10+ was first released.
Again, not true. All of the documentation on USB emarking states that emarked cables are required for any cable that is rated for higher than 3A, or any cable rated for USB 3.1 or 3.2 speeds.
I looked up several technical documents to confirm.
https://www.palpilot.com/wp-content/uploads/2017/03/USBTypeC_USBPD_03292017.pdf
Designing a Type-C Electronically Marked Cable - Part 1 | Electrical Engineering News and Products
https://www.mouser.ca/applications/usb-type-c/
The actual USB-C specification document from the USB-IF form also documents that USB Cables for USB 3.x must be electronically marked, and that USB 2.0 cables "may be marked"
Which is something I just learned. You can apparently have a cable with USB 2.0 speeds that emarked to support Power Delivery.
https://www.usb.org/sites/default/files/USB Type-C Spec R2.0 - August 2019.pdf
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Mike Dee
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Doesn't it work with S10 too? I don't recall... I still don't think it's worth buying
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j_hansen
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As far as I remember, you will really only gain anything between 0-60% after that you might as well use the 25W charger from the box, I'll test it out when I finally receive my 45W one.
But to me it sounds like the 45W is only worth buying for real super power users on busy and changing schedules, the rest of us can easily *make do* with the already quite fast 25W from the box
the S10 will only charge at 15W speeds. You can use the charger but get no benefit.
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