So USB-C is finally being incorporated into many devices these days so I would think that the days of bringing 4 different chargers on the road would be becoming a thing of the past. Unfortunately a quick test shows this might not be the case if you want to maintain the rate of charge that the OEM charger provides. My understanding of USB-C was that whenever a device ( In this case my Nexus 6P ) is plugged into a capable USB-C charger, it would charge at the highest available rate that it could take, given the capacity of the charger and capability of the device. What I found is that when my Nexus 6P was around 60% charged, I tried switching over to my new 2016 Macbook Pro 87 Watt USB-C wall charger, the charge rate slowed way down and never recovered. While it was plugged into the OEM charger I was seeing 1800 mA; then when I plugged it into the Mac charger, the rate never got higher than about 600 mA after several minutes. I then plugged back into the OEM Nexus charger and the rate again increased back to > 1800 mA. Anyone else have a different experience with chargers other than the stock one and the rates they can provide to the Nexus?
Most Apple chargers have chips for interacting with their products. Would make sense they limit unknown.
http://forum.xda-developers.com/nex...t/xthermal-mod-fast-charging-cpu-gpu-t3433784
I did consider the possibility that the charger isn't built to the official USB-C power delivery spec, but I wouldn't think Apple would be the company to build a non-compliant part.
Most ac/dc usb charger (1.5A-2.5A @5V) give me 1500mA on lockscreen (Custom ROMs).
Only original charger came with 6P will show 1800mA.
(Not sure about real charging current.)
Related
I have recently been profiling a few USB chargers to figure out which one is the best for rapidly charging my phone. A few threads have pointed to the EP851 charger being something a bit special. I was thinking about it on the drive into work..
The specs say that it charges for 60 minutes talk time in 10 minutes.
The XS has 8.5 hours talktime,
This means the charger can fully charge the phone in 8.5 * 10, 85 minutes
Plugging these values into my Charge Timer app gives an estimated power output of 1235ma, almost identical to the 1211ma of mu cheapo 1500ma charger.
Given this closeness, and the fact that the EP850 is also rated at 1500ma I am conclude that they are the same thing.
So, if you want a fast charger for your XS, and are waiting for the EP851, stop waiting and get a genuine BlackBerry Playbook 2A charger. It is about 10% faster (est 1314ma) and available now.
Charger results
http://vexedbadger.com/?page_id=97
not updated with the estimated EP851 yet
That's throwing some serious power at the battery, is it safe? Will it knacker the battery faster? The PlayBook charger im referring to
Sent from my LT26i using xda premium
Is it possible that the S has the "boost" pin with its USB connector and the 51 triggers it?
This is my understanding of it. PIN 1 and 4 provide power, 2 and 3 provide data (and 5 provides USB OTG?)
If pin 2 and 3 are not bridged, the phone will charge at the maximum rate as determined safe by the usb 2.0 spec
If pin 2 and 3 are bridged the phone will charge at the maximum rate as determined safe by the phone designers.
Both scenarios are, of course, restricted by the power that the connection can supply. For example, if you plugged the phone into a 1000A charger, I would expect it to only pull about 6? amps
As for "is the Playbook charger is safe?", the Playbook has the same type of battery as the SXS, just a lot bigger. For the Playbook, this charger is considered the slow charger, and a rapid charger that pushes more amps at 12V is available.
Obviously, its your phone so use it how you want. I prefer mine in my pocket instead of tethered to a wall so I am going to use the fastest charger I can.
I googled around for this and was surprised to not find any similar questions.
I have a lot of different microusb chargers (and microusb cables that can plug into usb wall chargers), coming from a lot of different sources. They have varying wattage and amp outputs as well.
Do phones and tablets have a maximum power that can be safely plugged into their microusb ports? I've never encountered any problems, but it's better to be sure. I've always gone off the assumption that if it comes with a microusb plug on the end, it's safe for my Android devices. But that may not be the case.
As long as the carger is about 5V and can push over 100mA (depends on phone requirements) it'll be fine. Even if you had a charger that could give 10 amps out, the phone won't take that much current. I measured my Samsung ATIV S taking about 460mA while charging and friend's Nokia Lumia 920 took 420mA while charging.
Custom kernel with charging settings and no data cable will give you best results
Send from my Synergyzed SPH-L900
Hello all,
I have a really stupid question but it's keeping me awake...
The DashCharge charger, can I use it with other devices? Like a MP3 player? Or another phone? Or is it purely and uniquely proprietary for the OnePlus phones and it might damage the other devices I would use it with?
I know it won't charge faster the devices or... But if I can plug anything with it, then I can drop the other chargers I have and keep only the DC in my bag
Thanx for your replies
Dash power chargers work at 5 Volts 4 Amps which translates to 20 Watts, if I'm not mistaken, Qualcomm's Quick Charge 3.0 works at 6.5 Volts on 3 Amps which means 19.5 Watts of power. The difference in Volts and amps between different chargers is not an issue for most devices for two main reasons.
1. Amperage is pulled by the device, which means that if you have a charger with a 4 Amp capacity, you can pretty much charge any device that draws up to 4 Amps, since no phone that I know of besides the 1+5 and 1+3(t) draws that much, you'll be fine.
2. On the voltage side, most phone chargers (apart from Qualcomm's Quick Charge) usually work at 5 Volts, the same as 1+ Dash chargers. And even if the Voltage rating on the charger is higher than the phone. These type of devices have safety features that reduce the output if they don't recognize the device being charged as compatible with their technology.
So for a quick recap, if the phone you're charging is not compatible with the technology of the charger (1+ Dash, Qualcomm QC for example) the charger will make sure to reduce the amount of power being fed to the device to a safe amount. So normally a non Dash compatible phone will probably charge at no more than 5V 2 or 2.4A.
Thanx a lot for your answer
So I can plug to my DashChargers my MP3 players and lent them sometimes to my colleagues to charge their phones as well, with nothing to worry about. It's good to know
LeKeiser said:
Thanx a lot for your answer
So I can plug to my DashChargers my MP3 players and lent them sometimes to my colleagues to charge their phones as well, with nothing to worry about. It's good to know
Click to expand...
Click to collapse
Yup, it just won't charge at full speed as it would with 1+ devices
You can use it with any device you like, but only OnePlus devices get the fast charge advantage!
Had anyone tried usb c power delivery charge yet?
I've got one for my cheap vernee which works well, in theory it requires negotiation to draw the correct power, but wondered if anyone has tested one yet
and oppo
On another thread, Berkowich made mention that Tab S4 supports PD Power, but not CH3.
These were not terms I was familiar with, so I turned to Google... So QC, QC 2.0 and QC 3.0 make sense. The "adaptive fast charger" in the box with the Tab S4 has outputs at 5 & 9 volts, so I assume it is QC 2.0 and it switches between 5V and 9V as the battery is filled to more efficiently charge the battery. But I see QC2 talks about 5V, 9V and 12V. So is this the same and/or safe? And it isn't clear to me how PD Chargers are different? Just more current? Are they safe for the Tab S4? What is the type of non-Samsung charger to buy?
Thanks
Joe
PD typically refers to USB Power Delivery, which is a fast charging specification developed by the non-profit USB-IF organization. It is the actual open-industry standard.
Quick Charge, even though it is in many devices, is actually a proprietary standard owned by Qualcomm. Some device manufacturers choose to not implement QC even when they use Qualcomm chips in order to save on licensing fees.
QC 2.0 & 3.0 are not in compliance with the USB-PD specifications. However, QC 4.0 is.
Samsung has its own quick charging technology and only some but not all of their devices are compatible with QC 2.0 standard.
USB-PD - https://www.usb.org/usb-charger-pd
Official Certified QC device list - https://www.qualcomm.com/documents/quick-charge-device-list (Note that the Tab S4 is nowhere on the list)
Let me reask the question....
I have have several different types of chargers... Older 1A and less chargers from miscellaneous devices. A few 2.4A / 5V chargers that either came or were purchased for older devices I have around the house. Two Samsung Adaptive Fast chargers (9V/1.67A + 5V/2A), one that came with the Tab S4 and another that came with an S7 Edge.
So which of these is optimum for charging the Tab S4?
Will the 2.4A charger be slower than the 2A adaptive charger?
Is there another type of charger that would work better for the S4?
Can some chargers damage the S4?
Does it make a difference if I'm using an HDMI/USB hub? (Mine always says I'm slow charging / draining the battery when I plug the 2A adaptive charger into the hub.)
Thanks for your help -- this is a more complicated subject than I thought.
Edit: there's a link on the charge time thread that leads to another link that helps answer some of my questions.
https://www.xda-developers.com/charging-comparison-oneplus-huawei/
https://www.digitaltrends.com/mobile/how-does-fast-charging-work/
This seems to say that the best bet is a Samsung adaptive charger or a QC 2.0 charger that will throttle back to Samsung's standard.
This doesn't answer what is best when using a hub, and what dangers there might be using non Samsung chargers.
On a related subject, years ago I learned that all USB 2.0 charging cables were not equal -- that you need to look at the gauge of the charging wires, and that you could have huge differences in charge speed based on the cable you used. Are all USB C cables equal with respect to charging? Or do you need to look for fatter gauage / bigger wires to get more current / less voltage drop over the cable?
thanks,
Joe
drjoe1 said:
Let me reask the question....
I have have several different types of chargers... Older 1A and less chargers from miscellaneous devices. A few 2.4A / 5V chargers that either came or were purchased for older devices I have around the house. Two Samsung Adaptive Fast chargers (9V/1.67A + 5V/2A), one that came with the Tab S4 and another that came with an S7 Edge.
So which of these is optimum for charging the Tab S4?
Will the 2.4A charger be slower than the 2A adaptive charger?
Is there another type of charger that would work better for the S4?
Can some chargers damage the S4?
Does it make a difference if I'm using an HDMI/USB hub? (Mine always says I'm slow charging / draining the battery when I plug the 2A adaptive charger into the hub.)
Thanks for your help -- this is a more complicated subject than I thought.
Edit: there's a link on the charge time thread that leads to another link that helps answer some of my questions.
https://www.xda-developers.com/charging-comparison-oneplus-huawei/
https://www.digitaltrends.com/mobile/how-does-fast-charging-work/
This seems to say that the best bet is a Samsung adaptive charger or a QC 2.0 charger that will throttle back to Samsung's standard.
This doesn't answer what is best when using a hub, and what dangers there might be using non Samsung chargers.
On a related subject, years ago I learned that all USB 2.0 charging cables were not equal -- that you need to look at the gauge of the charging wires, and that you could have huge differences in charge speed based on the cable you used. Are all USB C cables equal with respect to charging? Or do you need to look for fatter gauage / bigger wires to get more current / less voltage drop over the cable?
thanks,
Joe
Click to expand...
Click to collapse
Actually does someone that has an accurate usb meter help us. When i look for the charging support for the Snapdragon 835 on the web, it says QC4.0 but i can't find any QC4.0 chargers and i think it is the same with PD that i say on the other thread (it is just a think by the way because there is no QC4.0 chargers soo it is maybe a PD equivalent).
By the way when you are using the HDMI dongle(just HDMI and charging) did you use the original charger and the cable because there is no slow charging notification when i use it?
Just decided to buy a S23 Ultra as a upgrade for my Galaxy Note 8 and I need a new charger since my current charger is probably slow.
The price doesn't matter, since I just paid 855Euro for it after extending my phone contract and traded in the Note 8. However the charger should be from a reputable brand.
If it's possible, post the name and model of that charger or Amazon EU link.
Thread here.
45 Watt Charging
Does the Samsung S23 Ultra ONLY accept Samsung Genuine 45 watt charger for Super Fast Charging 2.0 aka 45 watt charging ?! BTW does anyone know any good 5A cables ?
forum.xda-developers.com
Personally I have always liked Anker brand wall warts and USB cables because of the quality. But that's just my preference (even with their bad security practices)
I've been please with the UGreen Dual USB C port charger. Does do the Super Fast 2.0 charging. Does some kind of very low trickle charge when the device 100% so the phone is actually cool in the morning when left charging overnight. https://www.amazon.com/UGREEN-Charg...28344&sprefix=ugreen+dual+port+,aps,59&sr=8-5
I like small, easily portable, and dual port chargers. I can charge two devices as once. And the one seems do it very well. You can definitely find faster chargers, but it fits my criteria very well.
I recommend official Samsung 45W charger, it comes with 5A cable. I use it and it workings as it should. From 30% to 85% of battery charging takes 20 minutes.
I got 4-5 Baseus chargers at home....GAN chargers with multi ports (100watts) are excellent if you've got many devices from different brands. It charges my Macbook at max capacity and same goes for all Samsung devices.
I've been using the nothing one charger I bought separately when I had nothing phone. It supports fast charging upto 30w and it is fast enough for me. It also looks a lot better than samsung's charger