tl;dr: Is there a confirmed kernel on 6.0.1 that actually allows for a 2Ah charge, am I missing something obvious or am I just SoL?
I recently picked up a 32gb N9 from a sweet deal on swappa. As soon as I got it, I unlocked bootloader before first boot, loaded up the system 6.0.1 image and went to town with SuperSU and ElementalX kernel. I never ran the tablet during the Lollipop era, so I missed out on all of the fun reports of slow performance and constant redraws as performance for me has been pretty good on Marshmallow (not as great as a 6P, mind you, but not many devices are that great).
I say all of this to ask this: ElementalX (as well as a number of other custom kernels) say they have unlocked the ability for the tablet to charge at 2Ah. While I DO have a toggle for a "USB fast charge" in my kernel tweakers set to ON, the tablet doesn't actually seem to charge at that rate.
I used the app Ampere to check how many amps were coming through to the N9. I used an old school ipad 1 power brick (which can charge at 2.1A) with a USB micro cable, and the highest it reported charging was 1.4A, which I think is basically right under what the N9 is supposed to charge at normally. According to google support page for the default charger, "The input voltage range between the wall outlet and this charging unit is AC 100V–240V, and the charging unit’s output voltage is DC 5V, 1.5A." Also, a standard USB port on my desktop computer will charge at 400 mA (or .4A), which is right under the standard 500mA, even with the setting turned on. There is no fast charging going on here in both cases.
So, this leads me to believe that Marshmallow (or something else) is stopping the ability to charge at those rates. Again, I've never used Lollipop on my N9, so I have no way of knowing whether or not kernel's USED to work before and simply no longer do... It's either that, or my power bricks aren't actually charging at the correct rate, but I'm led to believe its the kernel/tablet ensuring the charge doesn't go over the default rate.
I have been told that one possible reason for this happening is that the N9 has inherent idle power drain? Actual amperage will report around 1.7amps as a result. However, I don't know if this is actually the case because I've never gotten that much charge on my charger.
I'm not sure about 6.0.1, but NaHCO₃ and Elementalx threw off all the charge measuring apps I installed. Although, using my s4's 2 amp chrager gave a significant increase in the speed of charging over my stock charger.(I have reason to believe that my stock charger is broken but this does't affect my first observation)
If your battery is charging from empty to 100% in 3 hrs, you are getting the max charging speed. That's what I was getting on LP with a 2A wall charger.
I see you've already tried SimpleStream kernel, which claims 2A charging, so you're not likely to get higher charging rates than that.
Related
Guys, I know this has been discussed before but this problem is subtly different to previous requests so I'm posting again.
So this is an X10 running 2.1
I have a car charger which is a 2.1amp ipad charger. I also have a 1amp standard car charger. I do not have an SE branded car adapter, but both of the above adapters trigger the charging on correctly as far as i am aware.
If I just leave the phone on charge with the screen off it charges up just fine.
If I leave the screen on with no apps running it charges fine (slower than above)
If I run Copilot with APN Data enabled the battery slowly discharges, even though the charge light is on, and the battery indicator indicates charging.
If I run Copilot and disable APN Data the battery just stays at the same level and neither charges nor discharges. It seems to meet a state of equilibrium.
I ran Copilot with APN enabled and SetCPU limiting the CPU to 225MHz and the battery still discharges (albeit at a slower rate than without SetCPU).
I have the phone screen on minimum brightness and I am not running anything else unnecessary. I have checked battery temperature and I have never seen it above 32 degrees.
The same applies for Google navigation instead of copilot. Both discharge the battery whilst on charge.
I also noticed the other day that something went a bit mental on the phone and was consuming high CPU while the phone was on my branded SE AC wall charger and the battery ran down until the phone turned itself off whilst on charge.
So, does anyone else experience the fact that the phone does not draw enough power via the USB port to cover the current draw on the battery. I have 2.1 amps available on the car adapter and its clearly not drawing anywhere near that. Running it on the 1 amp charger also makes no difference. The SE branded AC adapter is rated at 750mA.
Is this normal?
Any clues?
At the moment to complete a 6 hour journey in the car using satnav on my X10 I have to take 2 or 3 fully charged batteries with me, in addition to having it on the charger.
Graham
The stock charger from Samsung was for 0.7Amps and it charges ok, but I find it slow.. about ~4 hours to fully change my SGS2 from with less than 10% left of battery life.
If I plug into the laptop, it takes like ~6 hours due to the slow trickle charge with 0.5Amps.
I don't know what the max pull is allowed on this phone, but I did find that when I charge with a 1Amps charger, I can get it from less than 10% to full in about ~3hours.
So, I tried a few such charges and have noticed some strangeness.. (all with the same test conditions, start charging with less than 10% and with the stock usb cable for the phone)
1) older Belink ac-usb 1Amps out put, it does seem to charge the phone good and faster finishing around ~3 hours ... but, when charging, the touch sensitivity of the screen is out of whack, any subtle movement, will cause the screen to jump around.. like in gallery, trying to select an individual pic is difficult as the screen jumps around; forget about using the browser and selecting links...not sure why..
2) HTC thunderbolt charger 1Amps output (http://www.amazon.com/gp/product/B003WM6SOU).. same issue here, charges faster, but makes the screen jump around
3) iPhone charger 1Amps output; this seems to work the best for me so far.. charges faster ~3hours and while charging the screen behaves normally, I am able to use gallery and browser fine...
4) iPad 2 charger 5.1 V and 2.1Amps: Still charges the phone ~3 hours, but same side effect...
Anyone else have the screen sensitivity issue and what chargers are you using?
I haven't seen any issue when I used a HP TouchPad Charger rated at 2.0A I think..
Max pull is 650 mA - this is set by the charger chip itself.
If the phone thinks you have a normal USB connection to PC instead of a dumb charger, it will be 400 mA.
Having a charger rated more than this won't hurt, but it won't help.
Monoprice "1A" car chargers are rated 300-400 mA at best - the ONLY monoprice product I've ever been unhappy with in my life.
In general, you want to make sure USB D+ and D- are shorted together by the charger - this guarantees that the phone sees the charger as "dumb" and goes to 650. Exception are media and car docks - whatever you connect to these will be assumed by the phone to be a high current "dumb charger".
All phone power usage (CPU, screen, etc.) counts against this current budget - e.g. if you have 200 mA of load, only 450 will be going into the battery.
Unlike the I9100, we don't appear to have any way to change these charging currents. Our phone, for whatever reason, has an additional chip for charge control (MAX8922) instead of using the charge control built into the main power management chip (MAX8997). This is disappointing, I was really hoping to bring over the "charginghacks" modifications from my Infuse kernel series.
Using a New Trent External charger I noticed that the phone was still losing power, just at a way slower rate than without it charging. Phone showed charging. I was using netflix via 3g at the time. Would this be expected? Not super worried as the battery charges just fine when screen is off and not in use.
How many amp output is that charger??
My phone can't keep up with the charge if I'm veiwing a movie using HDMI unless I run incredible kernel with fastcharge enabled.
7000mAh. Think 1V output?
IIRC, the stock A/C charger is 1 amp.
A lot of aftermarket chargers do not have the balls to charge the Rezound.
you may need to modify a usb cable to short the Data wires to get the full charging potential out of it.
or try one of these cables from amazon:
http://www.amazon.com/Naztech-Micro...3?s=electronics&ie=UTF8&qid=1328727460&sr=1-3
thatsricci said:
you may need to modify a usb cable to short the Data wires to get the full charging potential out of it.
or try one of these cables from amazon:
http://www.amazon.com/Naztech-Micro...3?s=electronics&ie=UTF8&qid=1328727460&sr=1-3
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Does this cable work for sure with the rezound??
I don't need it right now with the incredicontrol running, but I ordered it just as a handy thing to have.
My new Trent works pretty well, but I wouldn't expect it to keep up with streaming vids. I found that it gives a charge to the idle phone at about 800mA, which is about the same as the stock wall charger.
Pick up battery monitor widget and you can track your plus and minus usage pretty well to decide if everything seems OK.
jmorton10 said:
Does this cable work for sure with the rezound??
I don't need it right now with the incredicontrol running, but I ordered it just as a handy thing to have.
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Well, I'll answer my own question. The cable definitely DOES NOT force higher charging at least when using an HDMI adaptor.
If I use Incredikernel with fast charging enabled with Incredicontrol, it will actually GAIN charge while playing a full length movie through HDMI.
This morning, I flashed back to dsb 1.3 with no frills cpu control & hooked up the new cable for charging. I started with a 100% charged battery & after playing a 1 hour DVD RIP from my card, it was down to 89% charged. Using Incredicontrol, during the exact same test the battery still read 100% at the end.
Thanks for your results jmorton10. Good to know. I wonder if it's the connections inside the HDMI adapter messing with it.
Not sure why HTC can't just get this right to always pull the max possible from whatever it's hooked into!
-j
My understanding is because the MHL adapter needs the USB data pins to work properly and they can't be shorted out as mentioned above, the phone thinks it's on a USB connection and limits it's current draw to 500mA.
mjones73 said:
the phone thinks it's on a USB connection and limits it's current draw to 500mA.
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That is definitely the problem, the battery monitor widget claims it is charging from USB even though it is plugged directly into an A/C charger.
I guess I will be flashing back to Incredikernel/Incredicontrol tonight. I do like dsb kernel slightly better as it never freezes/bootloops etc. ever on that kernel. It does stop responding occasionally on IC (requiring a battery pull) although it doesn't happen very often.
The Rezound complies with the USB charging specification. If your power source isn't compliant, it won't draw more that 500 mA (and probably less if USB doesn't enumerate, but I haven't checked). That's what the "short the USB data pins" thing is all about. Earlier USB charging spec said they should be shorted, the latest says 200 ohms. Any "USB charger" which doesn't do that isn't compliant, and shouldn't be sold as USB-anything, because it doesn't follow the USB spec. Return it to where you got it, and complain (loudly).
Regardless of how much power a charger can deliver, even if it meets spec you won't see more than about 800 mA go into the battery. There's a limit to how much current both the connector and the battery can safely handle, and the phone takes that into consideration.
Remember, the mA reported by utilities is (always?) what's going in/out of the battery. The charger would be delivering more than that (e.g. 800 mA into the battery, plus 400 mA to power a phone doing video streaming, etc.). AIR, the micro USB connector is limited to ~1500 mA, and I've never seen a battery charge at much more than 800, as reported by the kernel. Conversely, when charging from a non-USB charging spec compliant port, the phone won't draw more than ~500 mA from the port, and the battery only gets what's left after subtracting what's needed to run the phone.
Another thing which can affect charging is the cable. If you have a long USB cable using 28 gauge wire, there will be a significant voltage drop across it. USB specs say the voltage should be between 4.75 and 5.25 V, and Android seems to limit the charging current so the incoming voltage stays above 4.75V. Using 24 gauge USB cables, especially with longer lengths, can increase the charging current. Most vendors don't tell you the wire gauge used in their cables, but Monoprice does (no relation, etc.).
my SGSII takes about 3 hours to fully charge. in japan, we had charging stations, where youd place a battery in a machine, and itd charge it from 10% - 70% in about 8 minutes,. and to 90% in about 15. this was because the machines used a higher current.
ive noticed the stock usb charger that comes with the S2 is a lower voltage of those compared to HTC, or say one youd buy at radio shack. yet even with a higher voltage charger, the phone still charges at the same rate. this is because the kernel controls input levels. the input levels are set to slowly take in a current, there are many reason youd want to have a slower charge.
one is to reduce salt bridge deterioration, which is ware on the battery. while this may be an issue for some who plan on keeping their phone battery for years, without upgrading their phone, or battery, for most of us a year of ware wont make a difference.
a second issue is heat, a faster charging battery generally charges warmer than a slower charging battery. however the phone will still not get as hot as a phone sitting in the sun, or playing a high graphics intensive game.
i would like to adjust the kernel to allow higher frequencies, how much of a higher frequency? well that would require bench testing. but a higher frequency indeed
has anyone played with these settings in the kernel, or done any benchtesting on the matter? id be very interested to hear your findings.
It's not possible.
http://forum.xda-developers.com/showthread.php?t=1468834
This has been asked more times than I've been able to keep count on here over the past month :-/ Answer doesn't change (unless you want to blow **** up).
so then the only way is to use an external battery charger?
because i know for a fact, an external battery charger can charge a battery very fast, ive experienced this first hand
on that link you posted, it said that the sgs2 charging limit is 650mA, but the USB charge is set lower.. has anyone raised the USB charge to 650mA? this would at least help my phone charge faster in the car, or while plugged into my laptop
soraxd said:
so then the only way is to use an external battery charger?
because i know for a fact, an external battery charger can charge a battery very fast, ive experienced this first hand
on that link you posted, it said that the sgs2 charging limit is 650mA, but the USB charge is set lower.. has anyone raised the USB charge to 650mA? this would at least help my phone charge faster in the car, or while plugged into my laptop
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The USB charge is not set to low, the current given by that of a computer USB port is less than 650mA (500mA if i remember correctly) and also depending on the car charger the output (might) be less than 650mA. I use the same computer USB cable with an external USB charger and i notice 2 things:
1- Since the phone pulls the required current from where ever the USB is plugged in, if it has capability of providing 650mA the phone will take 650mA. And with the external USB Charger (iSound Portable Charger) i can charge the phone in 3 hours.
2- Secondly while plugged in the iSound it shows charging "AC plugged in" this is because it can provide 650mA (which is the same as the wall outlet adapter)
Actually from what I know, and correct me if I'm wrong, even using the charger that comes with the sgs2 isn't the healthiest choice for your battery because the voltage is high to cut down on charging time. The best should be by connecting to your pc
I think it is the amps of the charger what makes a difference in charging speed
Sent from my Galaxy Nexus using XDA
Jetmantrunks said:
Actually from what I know, and correct me if I'm wrong, even using the charger that comes with the sgs2 isn't the healthiest choice for your battery because the voltage is high to cut down on charging time. The best should be by connecting to your pc
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Mistakenly pressed the thanks button, instead of the quote lol
Anyhow see if the phone is plugged in to the device that can provide as much current from 0.1A to 2.2A (from simple devices to Iphone <- they require 2.2A) the phone automatically draws the amount of current it is made to draw which is SGS2 is 650mA which is coincidentally the same as the wall outlet adapter.
I might be wrong, so correct me if i am.
I as thinking of lower the 650Ma AC rate to 450Ma or less, to allow the phone to slowly charge up overnight, with the aim of finding a rate that acheives a 5-6 hour charge time from empty.
Any thoughts? I was just thinking it should cause less heat and perhaps extend is life accordingly?
Hi all.. I have a problem with my htc one. Mainly, even while charging, my device is using more power than it is receiving while I am playing a game. I bought an alternative adapter as it had increased ampage .. this one (amazon.co.uk/gp/product/B00AAIN77A/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1) which i am using to connect with this cable (amazon.co.uk/gp/product/B003ES5ZSW/ref=oh_details_o00_s01_i01?ie=UTF8&psc=1)
As I said, not only am I using more power than I get from charging, but a notification on my phone also tells me that I am using a different adapter and I should use the official htc one.
I hope that someone here knows more about this, as I want the best charger I can get, hopefully I can still charge even while using the phone !
I have heard rumours of some kind of device that when plugged in, tells you hot optimal the power is by way of 5 led lights, all 5 being lit indicating the max power, while less than 5 suggest that you need to make changes, such as not putting it into a surge protector etc.... also this plug is modified specifically for better charging off mobiles/tablets. However extensive googling and I don't seem to be able to find this device.
Please help me.
With the original Charger it doesnt work too? Or you do not have a original charger
Same happened with me!!
Same warning pop up in my HTC one too
I used the original data cable which i got with my htc one,used nokia's orignal data cable but it didn't solved the problem then i tried with an LG charger & now the charging speed is better & i am not getting that error anymore!!
P.S - My HTC one id from usa & i am using it in india.!!
$!ngh said:
Same warning pop up in my HTC one too
I used the original data cable which i got with my htc one,used nokia's orignal data cable but it didn't solved the problem then i tried with an LG charger & now the charging speed is better & i am not getting that error anymore!!
P.S - My HTC one id from usa & i am using it in india.!!
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Which charger do you use? Why would it work, does it have higher ampage?
The amperage (amps) of the charger you use does not matter. Amps tell how much electricity is flowing. After the amps reach a certain limit, the HTC One would automatically prevent itself from receiving any more amps. You could try getting a charger with a higher voltage, BUT this has the potential of damaging the phone. Volts are the pressure/force/strength of the current, something the phone can not regulate. Basically, you can either just wait and let it charge before playing the game, or sacrifice the phone for game time.
P.S. if there are background apps open you can try closing them to reduce battery drain, and therefore increase charging speed.
isnt this happening because htc has quick charge disabled? they do that to prolong the batter life since its a real pain to replace the battery.
smartyhou said:
The amperage (amps) of the charger you use does not matter. Amps tell how much electricity is flowing. After the amps reach a certain limit, the HTC One would automatically prevent itself from receiving any more amps. You could try getting a charger with a higher voltage, BUT this has the potential of damaging the phone. Volts are the pressure/force/strength of the current, something the phone can not regulate. Basically, you can either just wait and let it charge before playing the game, or sacrifice the phone for game time.
P.S. if there are background apps open you can try closing them to reduce battery drain, and therefore increase charging speed.
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Actually Amperage does matter. It dictates how fast the battery will charge. A 1 amp charger will charge the battery twice as fast as 500 ma charger. The voltage is also critical and if you go over 5 volts you will damage your phone.
Could this be related to the type of cable? USB 3.0 capable?
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