Unreal power draw - OnePlus 3 Questions & Answers

Hello
I come to you with an interesting problem.
Recently I flashed my OnePlus 3 with CM13 and the ElementalX kernel. One important thing with this kernel is that it supports dash charging.
I normally don't use dash and just charge my phone via my computer. Today however I noticed that my phone got charged really fast so I looked into it.
This is my first post on XDA so I can't post a screenshot but Ampere showed that I was charging at 1500mA with an AC charger while connected to my computers USB port.
This seems to only occur when the laptop is in sleep mode. Now I'd shrug this off as a designated USB 3.0 charging port, but a) the computer doesn't have any and b) I tried it with a USB 2.0 port and I got the same result.
Once this actually happened when the computer was awake. I plugged in my phone, and the computer gave me the USB device has malfunctioned error but my phone was charging at 1.5A
I am genuinely worried. 1.5 A is alot even IF it were a charging port. Is there something wrong with my laptop or phone. This didn't happen on stock OS btw (coincidence?)

iirc ElementalX includes fast usb charge function

Like the guy said above, it supports fast charging but 900ma max, I had the same thing with my laptop. My phone charged real fast only when it was off. Don't worry ampere is glitched on this phone seems as it shows dash charging to be 1.5A also.

Related

not charging via usb?

so the option to not charge it is not ticked under power settings, and its set to charge via usb from advanced config and still no dice.
tried different usb ports and nothing
the led is orange, says its charging in power options
any thoughts?
Try a diffrent usb cable, some cables do not provide enough power to charge the phone. (guessing maybe they are old 1.1 cabels). But I know I have a few cables around that dont charge my phone and they also will not work with my portable external usb hard drive because they wont provide enough power for it. But they work just fine with my digital camera.
I´ve read somewhere that disabling USB charging is better for the battery life, so I have it disabled.
You've tried different USB ports, but were they on the different computers?
so i've tried different cables, different ports and 2 different PC's and 2 different laptops.
I know its not the cable i'm currently using because i plugged it into one of those A/C to USB adapters and charged fine.
I'm starting to think its my batter,
If you have tbattery installed, do u get values for all the boxes?
All mine except 3 or 4 are 0 :/
Well, you are not the only one having this problem. Mine is brand new. I started setting it up last night and had it hooked to the computer via usb. I installed a few .cabs such as google maps, myphone, and a few tweaks such as tether, disable sent notification, enable all camera modes, and manila start menu unlocker. While it was connected it said it was charging. When I went to bed I turned it off and connected it to another usb cable on another computer which is an a/c hub. I went to turn it on this morning and thought it was strange it was not fully charged. I continued to set it up a bit and take it for a spin. After a while I turned it off again and hooked it to the usb a/c charger again. I just tried turning it on and nothing was happening. I connected it to the usb again and it finally turned on, but I checked the battery level and it was at 0% and turned off. I have it connected to the a/c charger and giving it a little bit to see what will happen. One thing that seems strange is that the battery discharged more while it was off and attached to the usb a/c hub during the afternoon causing it to refuse to turn on at all. Any thoughts?
fone_fanatic said:
so i've tried different cables, different ports and 2 different PC's and 2 different laptops.
I know its not the cable i'm currently using because i plugged it into one of those A/C to USB adapters and charged fine.
I'm starting to think its my batter,
If you have tbattery installed, do u get values for all the boxes?
All mine except 3 or 4 are 0 :/
Click to expand...
Click to collapse
I think the odds are pretty good it's your battery. The orange light means power is going through the charging circuit, so you obviously have your settings correct.
I'm guessing you're in Austin or near? If you want to try popping my battery in it for a few minutes and see if it charges fine then, PM me and we can set something up.
the same thing is happening with mine. Sometimes it will charge, sometimes it wont. weird thing is that it only started doing this a few days ago... i know nothing has changed ROM wise, so only things i can think now is maybe the actual USB connector on the phone or the battery, but since I am getting a charge via wall chargers im not sure what to think lol
Just an update.
If i have the USB cable plugged in (and car charger to which doesn't charge as well ) after 15 min or so a warning appears saying that the current is too low to charge the device. Either closed unused apps or switch to a/c power.
I've ordered a 1800mah Mugen Power Battery. Gonna see if it resolves the issue, if it does then i'm gonna call at&t and see if they'll swap my battery for me.
I have found as have others here after reading some posts that if the phone is almost dead or battery is very low then it will not charge via the USB anymore. The orange light goes on and it says that its charging but the charging circuit seems to be protecting the phone and not letting the battery charge.
The only solution I have found, and it has only happened twice so far is to plug it into a wall charger and fully charge the battery. It will then charge via USB again and all is good. I normally only charge my phone with usb while connected to Activesync but once in a while you seem to need to top it up with a wall charger.
It is also highly recomended not to run Lithium Ion batteries right out.
How do you know it is not charging?
There is a difference in the wiring from a wall charger and a USB charger. There is a signal line in the wall charger telling it to charge at near 1000ma. In the USB cable that line tells it to limit the charge current to 500ma. That is the limit for current that you should pull from a USB port. If you are using the unit heavily, you may actually need more then the 500ma., those running the battery down possibly.
If the unit is idle, it will still take much longer to charger from USB then off of a wall charger.
worwig said:
How do you know it is not charging?
There is a difference in the wiring from a wall charger and a USB charger. There is a signal line in the wall charger telling it to charge at near 1000ma. In the USB cable that line tells it to limit the charge current to 500ma. That is the limit for current that you should pull from a USB port. If you are using the unit heavily, you may actually need more then the 500ma., those running the battery down possibly.
If the unit is idle, it will still take much longer to charger from USB then off of a wall charger.
Click to expand...
Click to collapse
If you are asking me, I know it was not charging because I also had the "not enough power to charge message" and the phone went from about 15% when I plugged it in to stone cold dead by the morning. The whole time it was pluged into a computer I have used repeatedly to charge it with. I then put it on a AC charger and it went to full charger in about an hour and a half or so.

[Q] Note 3 charging extremely slowly via USB

Hey all. I finally got my Note 3. I have been using it for a couple of days and, of course, it is awesome. But one thing is troubling me. I charge my phone via my desktop PC, which has several USB 3.0 ports. I first plugged it into the ones on the front, and it wasn't charging very quickly, so I plugged it into one of the back ports, and i'm still having the same problem.
For example, last night, I plugged it in around 1am at about 30%. It's now 7:30am and its at 96%. I would have figured it would be at 100 a while ago. I am using the original Samsung USB 3.0 cable that came with the phone.
I'll have to do a more scientific charging test to see what's going on, but has anyone else seen this?
The supplied charger puts out 2 amps. Which is much higher than any USB port on a PC will ever provide. That's why you're seeing such large disparities with charging rates.
Techngro said:
Hey all. I finally got my Note 3. I have been using it for a couple of days and, of course, it is awesome. But one thing is troubling me. I charge my phone via my desktop PC, which has several USB 3.0 ports. I first plugged it into the ones on the front, and it wasn't charging very quickly, so I plugged it into one of the back ports, and i'm still having the same problem.
For example, last night, I plugged it in around 1am at about 30%. It's now 7:30am and its at 96%. I would have figured it would be at 100 a while ago. I am using the original Samsung USB 3.0 cable that came with the phone.
I'll have to do a more scientific charging test to see what's going on, but has anyone else seen this?
Click to expand...
Click to collapse
A computer's USB 3.0 port is only spec'd to put out up to 0.9amps, compared to 0.5amps for the older USB 2.0, but the A/C charger puts out 2amps, so use that when charging time matters. I never use a computer's usb port for anything anymore except adb sideloading in recovery (where adb over wireless won't work). Note that SOME computers do have non-standard higher amp usb ports, but it's not that common.
ah I was also wondering why the charger itself charges the phone much faster than my desktop. Good info, thanks guys!
I have bought this item from ebay, it work great and charge the phone very fast
http://www.ebay.com/itm/190677630730?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Sent from my SM-N900T using xda app-developers app
Thanks for the responses people. I will use the plug from now on.
The charging speed will definitely slower than..?
It is the normal case that the speed will be much slower when you charge a device such as your Note3 via USB than via DC Power Supply. USB is mainly designed for the communication. The standard charging current of many mobile phones is 1 A or higher. But the highest output current of USB cable is only 0.5 A which could not reach the source demand of a phone. Except for this, we do not recommend charging via USB because the unstable current output can easily reduce the battery life of your Note 3.:laugh:

How to charge faster on Laptop's USB 3.0 port (only 500ma instead of 1000-1800ma)

On rare cases I've seen my LG G4 charging so fast on USB 3.0 port hub, the ampere app shows max current as 700 to 1800ma !!
Now tried different modes like Charge Phone, MTP Mode, PTP Mode etc. phone only charging at speed of max 500ma
Not possible cause the laptop only allows 500mah like the USB specifications are
Sent from my LG-H818 using Tapatalk
Get a charge adapter similar to this: it'll charge close to 2A on any modern laptop:
http://www.portablepowersupplies.co.uk/portapow-fast-charge-data-block-usb-adaptor/
5nickers said:
Not possible cause the laptop only allows 500mah like the USB specifications are
Sent from my LG-H818 using Tapatalk
Click to expand...
Click to collapse
it was possible like 2 times plugging G4 to laptop USB port the ampere app showed around 1000-1800 ma just on USB 3.0 port laptop, i was puzzled how it was charging fast... still a mystery to me, i've no idea how it happened...
that day after unplugging the phone from laptop, the usual habit is back to slow charge i.e 500ma
Here is the proof it's plugged as (AC charger)
While Windows booting up, a rare occurenced surprised me that instead of showing on Ampere app showing ( USB charger plugged) instead I saw it was on AC power mode as shown in screenshot
As I was aware that if I unplug and replug my G4 again , mode is changed back to USB charge mode (500 ma) , most strange thing i've seen! I REALLY WISHED IT'S ONLY AC CHARGE MODE INSTEAD OF USB CHARGE MODE AND IF THERE'S CUSTOM KERNEL, DEFINITELY I CAN CHARGE REAL FAST EVEN WITH SCREEN ON !

Slow charging on PC

Not sure if this has happen after the 8.1 update, but on my pixel XL I'm not longer able to get fast charging via usb type c to type c cable. I tried another cable that is known good and still doesn't work.
Factory usb type c cable works from wall outlet to phone. The phone will fast charge. Phone will not fast charge when connecting to pc (usb type c to type c. no adapters)
I tried to factory reset just now. Never unlocked the bootloader on this phone never installed any custom rom.
Safemode still does slow charging
Factory reset still does slow charging
Used SkipSoft Unified Android Toolkit to install drivers - still slow charging
Tried to change device from "charge only" to "transfer files" - slow charging
Any ideas?
Thanks.
that's normal. fast charging doesn't work with a PC, their USB ports charge at a lower rate...
nine7nine said:
that's normal. fast charging doesn't work with a PC, their USB ports charge at a lower rate...
Click to expand...
Click to collapse
It did however did work at some given point. I was able to do fast charging on my pc. motherboard is a x370 SLI Plus from msi.
Edit : never mind you are correct. I was wrong. Thanks for the heads up.
ytv said:
It did however did work at some given point. I was able to do fast charging on my pc. motherboard is a x370 SLI Plus from msi.
Edit : never mind you are correct. I was wrong. Thanks for the heads up.
Click to expand...
Click to collapse
all good. glad u sorted it out...
if you've ever noticed custom kernels that advertise 'USB fast charge' as a feature; those kernels can charge via your PC's USB ports faster.... it still doesn't give you actual fast charging, but it gives it a boost.
Hi guys,
I too experienced this change. My PCs used to charge my Pixel XL quite well, even faster than a wall charger. The phone would say "Charging Rapidly."
Looks like ever since the newest release, my PCs only provide "Charging Slowly."
What's the deal?
gooberphx420 said:
Hi guys,
I too experienced this change. My PCs used to charge my Pixel XL quite well, even faster than a wall charger. The phone would say "Charging Rapidly."
Looks like ever since the newest release, my PCs only provide "Charging Slowly."
What's the deal?
Click to expand...
Click to collapse
I think you are mistaken.... read my posts on the subject. USB ports don't support rapid charging and never have... there is a kernel patch that allows faster charging, but even then, it's still not as fast as a charger.
nine7nine said:
I think you are mistaken.... read my posts on the subject. USB ports don't support rapid charging and never have... there is a kernel patch that allows faster charging, but even then, it's still not as fast as a charger.
Click to expand...
Click to collapse
I am clearly not well-versed in the technological aspects of charging, I'm just telling you what I have seen and experienced with this phone.
- When I plug it into the wall - phone shows "Charging Rapidly....... XX%"
- If I use a crappy charger or regular USB cable - phone shows "Charging slowly....... XX%"
Up until a few weeks ago, my PCs (work and home, same motherboard, same USB-C outlets) would charge it blazingly fast - the same, if not faster than the wall charger.
I even used Ampere app on my phone which showed 1200-1500 mA charing.
Now Ampere shows 310 mA max wtf
gooberphx420 said:
I am clearly not well-versed in the technological aspects of charging, I'm just telling you what I have seen and experienced with this phone.
- When I plug it into the wall - phone shows "Charging Rapidly....... XX%"
- If I use a crappy charger or regular USB cable - phone shows "Charging slowly....... XX%"
Up until a few weeks ago, my PCs (work and home, same motherboard, same USB-C outlets) would charge it blazingly fast - the same, if not faster than the wall charger.
I even used Ampere app on my phone which showed 1200-1500 mA charing.
Now Ampere shows 310 mA max wtf
Click to expand...
Click to collapse
USB 3.x has a Max current of 900mA. that's in the specification... by default, your pixel would still only be using 500mA, but with the kernel patch that I spoke of; it bumps it to 900mA ...
I forget at what capacity, but basically it ramps down charging, after it hits a certain capacity, which might explain the 310mA in Ampere...
i don't know how you possibly could've been getting 1500mA out of a USB 3.x port from your PC, that exceeds the spec by a very large margin... not saying it didn't happen, but AFAIK that shouldn't even be possible.

Possible Quick Charge issue

My HTC 10 is about 1 year old, and I've never saw it show the "charging rapidly" message. It always charges normally, but I think that, somehow, the quickcharge thing is not engaging.
To clear my doubts, I've purchased a USB tester (model J7-t), and found out that the phone is charging at 5.08V 1.45A, with factory original charger and cable. With another charger (a regular 2.4A charger) and another cable, it charges at 5,22V 1.45A.
With phone turned off, it charges at 5,10V 0.96A.
I've tried some tips from other threads, like turning the cable over (I assume turning over the USB-C part of the cable), cleaning the USB-C port, restarting the phone, to no avail.
It has no problems connecting to the computer for data transfer, it also charges from the computer USB port.
It's running stock Oreo with stock kernel, rooted, bootloader unlocked and S-ON. As it is, takes over 90 minutes to go from below 20% to 100%.
Is this normal? Anyone knows why it's refusing to quick charge?
__________
EDIT: I suspect that the culprit is the cable itself, a HTC brand cable that came with the phone. It may not be compatible with Quick Charge technology.
I researched a bit about cables, and ordered a couple of these - https://www.aliexpress.com/item/Bli...r-Cable-1m-1-8m-Mobile-Phone/32833209044.html
BlitzWolf USB-A 3.0 to USB-C model BW-TC9. The description page says that it has a 56kΩ resistor, allows data transfers up to 5Gb/s, supports Quick Charge technologies up to 3A, and is sturdy enough to tow cars without breaking. Not that I would ever tow a car with an USB cable ...
Will update this post when the cables arrive and I test them.
__________
EDIT2: Cables have arrived, they're some fine piece of hardware. But the phone still refuses to charge at anything over ~5V and 1.45A. I've also ran another set of tests with a QC3.0 compliant car charger, to no avail - still charges at ~5V and 1.45A. I'm starting to believe that it's some problem with either the phone itself or the ROM/firmware.
I am using xiaomi quick charger and it shows 2870mah charging current at early stages of charging. Charging current was slowly decreased when battery percentage increased. is after 90% it shows below 1000mah and below. I am using ampere app from play store.

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