hi.
is there a way to detect if my phone is charging at 1.2A, at 1A or at 900mAh, or at 500mAh?
android says me if it is charging via USB mode or via AC mode or via Wireless mode but it doesn't tell me how fast is charging.
if at 1.0A or 1.2A for example.
is there a way to detect this info?
I've been looking today but not found anything accurate yet
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Does anyone know of there's a way of querying this information from the command line? If so, it'd be easy enough to write a little app (depending on permission levels it may or may not require root) that would make the query and display it and even have a notification and/or toast option.
I use an app called Elixir 2, its free and will show you the batter charge along with a lot of other info -- > https://play.google.com/store/apps/details?id=com.bartat.android.elixir&hl=en
jackpollard said:
I use an app called Elixir 2, its free and will show you the batter charge along with a lot of other info -- > https://play.google.com/store/apps/details?id=com.bartat.android.elixir&hl=en
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I know elixir and I like it but it doesn't give me the information I am asking for.
jefftheworld said:
Does anyone know of there's a way of querying this information from the command line?
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I've been looking around /sys/class/power_supply but found nothing yet.
I think they've changed where this is stored for n5 /kitkat
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sblantipodi said:
I know elixir and I like it but it doesn't give me the information I am asking for.
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Opps sorry, I thought you were looking for something else.
CurrentWidget and BatteryWidget seems to be giving some sort of mAH reading..
https://play.google.com/store/apps/details?id=ccc71.bmw
EarlZ said:
CurrentWidget and BatteryWidget seems to be giving some sort of mAH reading..
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They don't represent what's being taken in though. More like what's being used
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rootSU said:
They don't represent what's being taken in though. More like what's being used
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Try plugging a charger in and it will show you the current charged amount, with out a charger it shows how much is getting used.
EarlZ said:
Try plugging a charger in and it will show you the current charged amount, with out a charger it shows how much is getting used.
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Actually no, it will show you the differential between what is being used and what is being charged, which would be a negative or positive number. That's not what we're looking for. We want the charging only
If you want to find what we're looking for, an app should be showing us something like this:
Usb 2: 475-500mA
Usb 3: 875-900mA
AC: 1200mA
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If you cat /sys/class/power_supply/battery/uevent the value next to POWER_SUPPLY_CURRENT_NOW seems to be random. Whether plugged in or not it gives me a random signed number (positive or negative). This _could_ be a differential but on my Nexus S this returned input current, so I don't believe that's what it is.
That makes me think that google has done some shifting around of the function as clearly even their own composite functions don't return correct values.
Sorry, I dont get it.
When plugged into the wall outlet it shows me a reading of 1100mAH, plugged into my power bank it shows me between 600-700mAH..
The Galaxy charging app on the note2 which shows me 1699mAH as my charge rate while the app I mentioned above shows me 1500+
To me that is already a charge rate indicator.
Keep us posted if you find something, id be interested on it too so I can check how much a power bank actually charges before deciding to get a new one. I've been testing a few ones and alot of them only show a charge rate of 200-300mAH aside from the one I have at 600-700mAH
jefftheworld said:
If you cat /sys/class/power_supply/battery/uevent the value next to POWER_SUPPLY_CURRENT_NOW seems to be random. Whether plugged in or not it gives me a random signed number (positive or negative). This _could_ be a differential but on my Nexus S this returned input current, so I don't believe that's what it is.
That makes me think that google has done some shifting around of the function as clearly even their own composite functions don't return correct values.
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This is my feeling too
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---------- Post added at 11:31 AM ---------- Previous post was at 11:25 AM ----------
EarlZ said:
Sorry, I dont get it.
When plugged into the wall outlet it shows me a reading of 1100mAH, plugged into my power bank it shows me between 600-700mAH..
The Galaxy charging app on the note2 which shows me 1699mAH as my charge rate while the app I mentioned above shows me 1500+
To me that is already a charge rate indicator.
Keep us posted if you find something, id be interested on it too so I can check how much a power bank actually charges before deciding to get a new one. I've been testing a few ones and alot of them only show a charge rate of 200-300mAH aside from the one I have at 600-700mAH
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Do you have a nexus 5 specifically?
Galaxy charging app doesn't give me any useful result unlike on my s3.
Current Widget fluctuates massively between 100 and 600mA when NOT charging. When I plug a charger in, it fluctuates between a number that appears to be what the source provides minus the above fluctuating number.
Eg I plug my 1200mA wall plug, my numbers fluctuate between about 1100 and 500mA. I have it to.update every second and every second is massively software.
Perhaps my usb cable is "unstable" if you're getting the correct readings however all the usual locations of charge current in /sys/class/power_ supply no longer seem to contain the info
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Related
Please forgive me if this is common knowledge or already in a thread. I've tried searching the forums and can't find anything on it. Does the GS3 (or at least the VZW version) lack a way to monitor the charge amperage? I've been curious to know how well my new car charger is working, yet every app I try (even diving into the logs with aLogcat) reports no data on charge amperage. Is there any way to get this data on the GS3? Thanks!
Maybe CurretWidget from Google Play? It says in the description that it can monitor how many amps the device is giving off or how much its receiving via AC power.
Arystalis said:
Maybe CurretWidget from Google Play? It says in the description that it can monitor how many amps the device is giving off or how much its receiving via AC power.
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I've tried CurrentWidget and others and they all report "0 mA" no matter what I do, which is why I've even tried looking in the logs. I'm thinking the GS3 doesn't monitor the amps, or at least not conventionally. It seems there must be some way though, because the phone has to know when to charge using USB mode and AC mode (unless it's just checking to see whether it's connected to a computer or not).
Anyone know about this? I've been searching through the forums and all the info I can find about monitoring charge amps is in the forums for other phones. I would like to know what to do to get this data if possible, and if not, to know that. Thanks!
Hi has anyone tried the 2013 charger for nex 7 on nex 5? I am mainly askng because the nex 7 charger output 5.2V @ 1.25A. I am not sure if the increase 0.2V would damage the battery
rudyzhou2 said:
Hi has anyone tried the 2013 charger for nex 7 on nex 5? I am mainly askng because the nex 7 charger output 5.2V @ 1.25A. I am not sure if the increase 0.2V would damage the battery
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i tried it and seems to be ok for me
Works fine for me too but I am having some concerns that it may harm the battery in the long term. I know chargers with too high a voltage will burn out the device, but I don't know if .2 amps is that big a difference. However, from the general consensus I have seen so far, it is recommended to stay at the same voltage and use the device's original charger.
Can anyone with some electrical background chime in with this situation?
sierratango88 said:
Works fine for me too but I am having some concerns that it may harm the battery in the long term. I know chargers with too high a voltage will burn out the device, but I don't know if .2 amps is that big a difference. However, from the general consensus I have seen so far, it is recommended to stay at the same voltage and use the device's original charger.
Can anyone with some electrical background chime in with this situation?
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The device limits what it takes so the only real danger is the usb connection burning out and most should be fine.
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rootSU said:
The device limits what it takes so the only real danger is the usb connection burning out and most should be fine.
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Thanks for the quick reply.
I have heard that the device does indeed limit what it takes in, but people were usually referencing amperage, not voltage. Is it still safe to assume that .2 amps is a negligible difference?
Edit:
Here is some additional discussion for those interested: http://w3.reddit.com/r/Nexus7/comments/1nng7y/charging_my_phone_with_my_nexus_charger/
It is in this case.
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Just as title says: I have a Mobo with x3 USB power.(with a really idiot marketing name) Do i need USB Fastcharge to make my n5 charge faster?
It charges really fast anyway
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rootSU said:
It charges really fast anyway
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Not really, sometimes when i play a game in the USB it even discharges a bit
It charges in about 2 hours. That is really fast. Sure, if you're going to play gta or something, it is going to drain whilst in use.
Fast charging is achieved by upping the input. You're going to be fine adding 0.2 mA for sure .. but the more you up the input, the more heat you produce and the higher the risk of burning out the usb socket / charging circuit.
What's the limit? Im not sure l.
My S3 mains was 1mA. Max it could safely take was 1.47mA
N5 takes 1.2mA .... I wouldn't risk going over 1.5mA personally.... it may be possible to get to 2 but no way im trying
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rootSU said:
It charges in about 2 hours. That is really fast. Sure, if you're going to play gta or something, it is going to drain whilst in use.
Fast charging is achieved by upping the input. You're going to be fine adding 0.2 mA for sure .. but the more you up the input, the more heat you produce and the higher the risk of burning out the usb socket / charging circuit.
What's the limit? Im not sure l.
My S3 mains was 1mA. Max it could safely take was 1.47mA
N5 takes 1.2mA .... I wouldn't risk going over 1.5mA personally.... it may be possible to get to 2 but no way im trying
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Still not a clear answer :S.
ElementalX provides USB Fastcharge, do i need it with a PC with USB x3 power. Or does the phone automatically see its 3x power. Or can i let it see it as a AC power somehow?
BRiANj64 said:
Still not a clear answer :S.
ElementalX provides USB Fastcharge, do i need it with a PC with USB x3 power. Or does the phone automatically see its 3x power. Or can i let it see it as a AC power somehow?
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The phone will draw what it is limited to by the kernel and charging circuit. Stock kernel will draw 1.2mA from a 2mA source. If your kernel allows to draw more then you can draw more, givingca faster charge
A usb 2 port will give 475mA. A USB 3 port will give 900mA, however its the device that limits the draw not the port. I used to set my s3 to draw 875mA from usb2. This risks the computers usb port though, from burn out
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rootSU said:
The phone will draw what it is limited to by the kernel and charging circuit. Stock kernel will draw 1.2mA from a 2mA source. If your kernel allows to draw more then you can draw more, givingca faster charge
A usb 2 port will give 475mA. A USB 3 port will give 900mA, however its the device that limits the draw not the port. I used to set my s3 to draw 875mA from usb2. This risks the computers usb port though, from burn out
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I was talking about the USB2 X3 power connections on my Motherboard:
http://gigabyte.com/MicroSite/81/data/tech-091020-333.htm#usb-power
Will the kernel detect USB2 x3 power? Or will i have to use USB3 which doesn't seem to work as it detects those as a USB2 hub(weird huh?)
BRiANj64 said:
I was talking about the USB2 X3 power connections on my Motherboard:
http://gigabyte.com/MicroSite/81/data/tech-091020-333.htm#usb-power
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As stated, the kernel limits what you can draw. This is based on detection of the power source.
Kernel detects usb 2, nexus 5 will limit draw to 500mA
Kernel detects usb 3, nexus 5 will limit draw to 900mA
Kernel detects AC, nexus 5 will limit draw to 1200mA
Some kernels (such as faux) have an option to allow usb fast charge on cheap chargers to be detected as AC, thus giving you 1200mA.
Whether your fast charge is detected as AC or not as default, I cannot answer. You'd need to test this yourself by checking what the nexus 5bis drawing
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rootSU said:
As stated, the kernel limits what you can draw. This is based on detection of the power source.
Kernel detects usb 2, nexus 5 will limit draw to 500mA
Kernel detects usb 3, nexus 5 will limit draw to 900mA
Kernel detects AC, nexus 5 will limit draw to 1200mA
Some kernels (such as faux) have an option to allow usb fast charge on cheap chargers to be detected as AC, thus giving you 1200mA.
Whether your fast charge is detected as AC or not as default, I cannot answer. You'd need to test this yourself by checking what the nexus 5bis drawing
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So in other words. the Kernel cannot detect if it's a normal USB2 or a USB2 x3. Crap.
That means i need to find a solution how to fix my USB3 detecting as USB2 on my Windows 8.1(This is gonna be painful)
rootSU said:
As stated, the kernel limits what you can draw. This is based on detection of the power source.
Kernel detects usb 2, nexus 5 will limit draw to 500mA
Kernel detects usb 3, nexus 5 will limit draw to 900mA
Kernel detects AC, nexus 5 will limit draw to 1200mA
Some kernels (such as faux) have an option to allow usb fast charge on cheap chargers to be detected as AC, thus giving you 1200mA.
Whether your fast charge is detected as AC or not as default, I cannot answer. You'd need to test this yourself by checking what the nexus 5bis drawing
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So in other words. the Kernel cannot detect if it's a normal USB2 or a USB2 x3. Crap.
That means i need to find a solution how to fix my USB3 detecting as USB2 on my Windows 8.1(This is gonna be painful)
Im not sure. Im finding conflicting information on the internet about the n5 and fast charge. Since I dont have fastcharge I can't test and am yet to find something that accurately reports charging mA. Some say the snapdragon 800 supports fast charge but its not implemented on the n5.
We really need to find an app that reports charging mA to truly know though
It should detect difference between usb 2 and 3.
In settings > battery, it reports whether its charging from ac or usb. What does it show for you?
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I have never tried it. Is it worth paying 20-40 bucks for a pad? How fast is it?
Sent from my Nexus 5 using xda app-developers app
whozilla said:
I have never tried it. Is it worth paying 20-40 bucks for a pad? How fast is it?
Sent from my Nexus 5 using xda app-developers app
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bought a Nokia DT-601. was that impressed have since bought another.
Its not going to change your life but it saves fiddling with connectors every time. charging time is quick (even from just a USB feed) and it gets warm, but not hot !
if you have the cash to spare then give it a go Ive wasted similar amounts on numberous replacement cables along the way to be honest.
I use it all the time. Sure beats messing around with USB cables. Its not as fast as plugging it in, but its worth it
sent from my HAMMERHEAD neXus
whozilla said:
I have never tried it. Is it worth paying 20-40 bucks for a pad? How fast is it?
Sent from my Nexus 5 using xda app-developers app
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I love wireless charging. It's just no hassle, and since I'm kind off paranoid of breaking the micro USB port on my N5 because it's really tight, it works. It's not as fast as the plug in charger that came with the phone due to the inherent inefficiencies or wireless charging, but it's still pretty quick. Depending on how low your battery is when you start charging, it would probably take 30-60min longer. But, I'm never really in a rush, and always keep my battery topped off, so I'm never in dire need for a super fast charge.
A word of caution though: STAY AWAY FROM THE TYLT VU. It has a serious issue with sporadically overheating your device. Check out these threads:
http://forum.xda-developers.com/showthread.php?t=2522361
http://forum.xda-developers.com/showthread.php?t=2551819
Yes I do. We have a similar thread somewhere where we've all answered this before
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Do it! Worth every penny! It’s elegant and I always have plenty of battery life when I’m on the go because of it! OH, AND THE IPHONE CAN’T DO THIS!
I don't think I ever even opened the USB cable that came with it. I use a Nokia DT900 and it works great.
rootSU said:
Yes I do. We have a similar thread somewhere where we've all answered this before
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just noticed the thread in general. did a reading and decided to buy the nexus 4 official wireless charger. For me its the fact that I do go through a lot of extra cables in a year and it would be nice to preserve the port. But most importantly. Smoke em if you got em.
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I use a wireless pad on the bedside table. Just drop my phone on it at night. Works a treat. Thinking about getting another one for my desk at work.
I use it at work. Love it.
whozilla said:
just noticed the thread in general. did a reading and decided to buy the nexus 4 official wireless charger. For me its the fact that I do go through a lot of extra cables in a year and it would be nice to preserve the port. But most importantly. Smoke em if you got em.
Sent from my Nexus 5 using xda app-developers app
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Good choice. I returned my two Tylt Vu chargers for an N4 Orb charger I use at home. It's build quality is solid. I also use a Nokia DT-900 at work that works flawlessly as well.
charesa39 said:
Good choice. I returned my two Tylt Vu chargers for an N4 Orb charger I use at home. It's build quality is solid. I also use a Nokia DT-900 at work that works flawlessly as well.
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Yeah I got the 910. I read regularly here about people having overcharging issues on non official chargers. The Nokias were consistantly reported as good though
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I mainly use the google official one and let me tell you- wireless charging is so worth it. Of course if you took a stopwatch and figured out how much time it saved as opposed to plugging it in, you wouldn't be saving much time- but there's something subconsciously... awesome about it. Plus with the quick charge 2.0 or whatever its called that our phone has- epic charging speeds. Worth every penny imo. I'm considering getting a few portable QI chargers as well to replace micro usb power banks.
Yup. Sod it's benefits... Its just seriously cool every time you do it
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A must have accessory. I have two Nokia DT900s. Daydream is nice for the bedside.
I have that less voltage means less heat but needs thicker and shorter cables to have the same charging speed.
Huawei phones charge at only 4 volts but 5 A? And some phones charge at 12V but only 1A or 2A?
Can anyone explain the differences?
Thanks.
Hi! Take a moment before posting to read the sections description, you'll have better luck reaching your target audience when you post in the correct section.
I'll move this to Questions and Answers, since it does not pertain to xda. :good:
MarcusNow said:
I have that less voltage means less heat but needs thicker and shorter cables to have the same charging speed...
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This is a challenge to explain but, the following link is a very good one regarding this topic expanded a bit.
https://www.howtogeek.com/175734/htg-explains-can-you-use-any-charger-with-any-device/
I hope that it explains it a bit better for you...
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