how can u disable the usb charging? even if its in mass storage mode its keeps on charging.. pls help..
What's wrong with the phone charging?
Isn't it a good thing?
Charge properly
You wouldn’t think that there is a particular technique to plugging your Galaxy S 2 in to charge – and you’d be right. However, you should pay attention to when you charge. If you’re constantly topping up your phone’s battery whenever you get the opportunity, you won’t be doing it any favours.
mulambo said:
Charge properly
You wouldn’t think that there is a particular technique to plugging your Galaxy S 2 in to charge – and you’d be right. However, you should pay attention to when you charge. If you’re constantly topping up your phone’s battery whenever you get the opportunity, you won’t be doing it any favours.
Click to expand...
Click to collapse
Who said ?????
jje
If i can find the link to a few sites ill post. But lipo batteries LOVE top up charging. Google it. Common knowledge.
Sent from my GT-I9100 using XDA App
Constant charging to 100% is actually bad for the battery, if you stop the charging at 90% your battery will live twice as long, with only a 10% drop in runtime.
I had an Motorola defy, and i am sure you could select not to charge the battery, when connected to your computer.
I'm also interested in the initial question...and my reason: if i connect my s2 with the mass-storage capable usb-port of a Samsung TV for viewing photos directly through the Media Player from the TV, i get an error from it saying too much current on usb because of the charging
so - how to avoid this?
A standard tv usb port does not provide enough power to charge the S2, you need a special adaptor that you plug you S2 charger into to provide extra power, see link below.
New Samsung TV`s don't know when, will provide more power to the usb ports so you will not need the charger in the future.
http://www.amazon.co.uk/TV-Out-Adapter-Samsung-Galaxy-G-HUB/dp/B005GCBVXM
GrandLX said:
I'm also interested in the initial question...and my reason: if i connect my s2 with the mass-storage capable usb-port of a Samsung TV for viewing photos directly through the Media Player from the TV, i get an error from it saying too much current on usb because of the charging
so - how to avoid this?
Click to expand...
Click to collapse
You guys are thinking of NiMh batteries, not Li+ batteries.
Li+ prefers a full charge, does not have a memory effect. If it stays at low power levels 10% it damages the batteries.
Li+ batteries have around 3000 to 5000 deep charge cycle, a deep charge is when you use to around 10% then charge.
It however has more than 2,000,000 micro charge cycles. Meaning you charge it at around 40%~80%
Battery has a cell life span, which means it is going to break regardless how you use it in 2 yrs time.
As for charging via TV, yes, you need a special cable, but that's for HDMI, not USB. The HDMI port is also the USB port on the phone. Standard USB Port supplies 5V 500mA, however, some Computers and Electrical Appliances with a USB port supply different amounts, depending on design.
Computers can supply 5V 1000mA, TVs might supply 5V but less than 500mA. Media Boxes might supply 5V but less than 500mA. Some USB chargers might supply 5V 1000mA but do not have signal in data+ data- lines, which causes the phone to lag while charging.
WIKIPEDIA KNOWS EVERYTHING. Wiki it, it will tell you it is true.. LOL!
so its oki if you plug the s2 to ur pc anytime and charge it anytime?
Pretty much.
I already got an adapter for connection via hdmi, but i forgot and tried to connect as mass-storage. Thought there might be a trick...
Related
I purchased a new vent holder with a car charger, and it charges the phone up OK when it is off, but if it is on it says charging but does not actually charge. This is especially annoying with Satnav and after an hour or two the phone dies and I don't know where I am going!
Anyone know what causes this? I guess it can't provide enough power for the device, especially when using the internal GPS, but I think it doesn't even keep up with the device is just turned on.
I am getting another charger just in case, but never had the problem on my old Touch....
..
try -> start/settings/system tab/power/battery tab - uncheck the box "when the device is turned on...."
It isn't ticked...
..
try ticking it..
That will have the opposite effect, it charges fine when plugged into the wall, the problem is something to do with the car.
Does anyone use satnav on a touch HD and have it charge at the same time?
Well there could be one or two issues.
On the USB port there are four connections, a positive and a negative and two data pins. When you plug your Touch HD into a PC power is supplied down the power pins and after negotiating with the USB controller chip over the two data pins the phone will pull up-to 500mA from the power supply to run and charge the phone. This is so the USB port on the PC is not damaged by the phone overloading the power supply to the port.
Without the negotiation with the USB controller chip the device will only charge at 100mA.
But 500mA is not enough to charge the phone with everything running, you will need at least 1000mA to do that (1 Ampere). So that is what your wall charger pushes out. But how does the phone know it can charge at a higher rate? Well inside the charger the data pins on the USB connector are wired in a way that the phone 'sees' that a higher current is available, and pulls a higher charging current.
So what you need is a minimum current 1 Amp car charger. If you already have a 1 Amp then the chances are that is does not have the data pins connected properly and the phone will not draw the higher current, meaning it will only charge at 100mA.
Thanks, I am going to try another one and see if that helps, perhaps it is just faulty, otherwise I will check if it is 1Amp.
Cheers.
I contacted the seller and they sent me a new one, which works. So it turns it my charger was just faulty.
What's the rating of the new one? and where did you get it from. I bought a 2amp (supposedly) but it doesn't give me more than 500mA.
I've had this problem and it sucks! As I'm always out on the road. But I have found a few solutions. I purchased a mini usb charger from asda for £6. After adjusting the backlight to medium this charger seems to keep the power level the same as it was before you plugged it in, so It doesn't let the battery go flat. I've now learnt to keep a spare charged battery in the car just in case it fails.
I have a USB car charger that doesn't seem to charge as quickly as I would like it to. I say that by comparing it to previous phones and the rate at which they charged when plugged into it.
I read that you can short out the Belkin or Griffin USB charges to make it look like your phone is plugged into the wall. I'm not agains doing this because i like to tweak.
The question really is, I see that Proporta has a 4000mA (2000mA per port) dual port USB charger available. Will this allow my phone to charge like it's plugged into the wall or will it still "look like" I'm plugged into a USB prot charging?
- Cyber
Not exactly sure what you're asking, but I assume that you mean that a wall charger charges the phone faster than a car charger.
Unfortunately, I don't know if this is the case. USB is a universal standard with specific power requirements. Although there are medium and high power chargers out there, I would be reluctant to get something so extreme. I think USB calls for 500 mA standard, so I'd be careful using the charger you mention. You might want to do some more research on it, or contact the company about it.
I'm not an expert but my opinion is that usually USB-Wall charger supplies up to 1000 mAh (written on power supply transformer) while the USB-OutPC is only 500 mAh, in fact, I've noticed that the full charge of my Titan takes double the time if charged via PC.
Not sure about the amount supplied by cars USB adapter.
...my two amperes...
Some of the chargers accomplish support for things like the iPad 2 by shorting the two USB connectors. Some advertise things like 2000ma, but fail to deliver much more than 500ma. I am not sure if this is due to the choice of shorting out the data connectors to trick your phone in to thinking it is plugged in to the wall.
Back in the WM 6.5 days, you could accomplish this at the phone driver level and did not need to modify your chargers.
I would not worry about trying something rated higher as your phone would regulate the current. I personally intend to do my experimentation by shorting out the cable rather than the charger (cables are more easily replaced). Unfortunately, there is no app for WP7 that can measure the charging current, so the only way to do this scientifically is to use the battery status app and measuring the charge rate over time.
If you do the mod, post back and let us know. When I get around to the USB cable experiment, I will post back as well.
I found out today, that if I am booted in Android, the Touchstone WILL charge my Touchpad via my MacBook Pro USB port. The tablet will show the "Home" screen in its "night stand" mode, and I will get a full charge after some time.
If the Touchpad is booted into WebOS, it won't charge when attached to my MacBook Pro USB port, as expected (it's indicated in the product's brochure).
Really odd!
its simple really.
you're a wizard.
WebOS has fail safes in place where it has to be receiving full power to charge the battery to prevent damage to it. Android does not have this. My TP shows charging anytime I connect it in android to transfers files.
HazzaBlake said:
its simple really.
you're a wizard.
Click to expand...
Click to collapse
Of Oz?
monkay01 said:
WebOS has fail safes in place where it has to be receiving full power to charge the battery to prevent damage to it. Android does not have this. My TP shows charging anytime I connect it in android to transfers files.
Click to expand...
Click to collapse
That's more like it, thanks!
monkay01 said:
WebOS has fail safes in place where it has to be receiving full power to charge the battery to prevent damage to it. Android does not have this. My TP shows charging anytime I connect it in android to transfers files.
Click to expand...
Click to collapse
The TP will charge from any USB source as long as it is receiving the correct switch signal (actually a voltage) on its data lines.
Currently (pun intended!) only the HP AC barrel charger has the correct switching properties "of the shelf".
There are mods to enable the use of other chargers.
It is this switching signal that allows the TP to charge at full rate (nominally 2Ah). Without it all other chargers operate at much slower and lower charge rates.
It has nothing to do with which OS is in use.
The major difference is the speed of charge and this is governed by the charger (be it AC or car charger) and its rated charging current. If it is too low and the device is in use then the battery will discharge quicker than it can be charged which kind of defeats the object of charging!
The touchstone is more interesting as it can be plugged in to any USB port and operate within the tolerances of its specification and provide an element of inductive charge based on the output of the USB port being used. But once again low current means slow charge.
pa49 said:
The TP will charge from any USB source as long as it is receiving the correct switch signal (actually a voltage) on its data lines.
Currently (pun intended!) only the HP AC barrel charger has the correct switching properties "of the shelf".
There are mods to enable the use of other chargers.
It is this switching signal that allows the TP to charge at full rate (nominally 2Ah). Without it all other chargers operate at much slower and lower charge rates.
It has nothing to do with which OS is in use.
The major difference is the speed of charge and this is governed by the charger (be it AC or car charger) and its rated charging current. If it is too low and the device is in use then the battery will discharge quicker than it can be charged which kind of defeats the object of charging!
The touchstone is more interesting as it can be plugged in to any USB port and operate within the tolerances of its specification and provide an element of inductive charge based on the output of the USB port being used. But once again low current means slow charge.
Click to expand...
Click to collapse
funny enough it will show you that its charging but most likely its not pulling any power. If you do in terminal cat /sys/power/charger/currentlimit it should show you how much power its actually pulling, and since induction is actually pulling about a 1/4 less power (lost during the induction process) your actually pulling 125mah less aka 375 mah which at that point is useless
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.).
Hi all, I have problem with my HDX 7 Unlock BL and Recovery TWRP 3.0.0.
About from ten days up to now, my HDX 7 charge very slow with any charge HTC, Xiaomi, LG (I can not try with original HDX Charge which due to loss it some months ago). I use CM 12.1 dated 10 Jun 16 and also try all CM11 roms. When plug charge to HDX, I check information in Battery section of Setting that has report "charging by USB" but few seconds next change status to "not charging" and again and again.
What is the problem? How can I fix it?
Many thanks any comments.
Sent from my Redmi Note 3 using XDA-Developers mobile app
My kindle charge slow and PC won't detect.
I have the problem that PC can't detect my kindle hdx7. And my tablet charges slowly with wall charger.
This is because one day I charged it with my Quick Charger 2.0. I think that was the reason, and charging circuit has been damaged.
Is it be a real cause?
Does any one has the solution?
teerus said:
I have the problem that PC can't detect my kindle hdx7. And my tablet charges slowly with wall charger.
This is because one day I charged it with my Quick Charger 2.0. I think that was the reason, and charging circuit has been damaged.
Is it be a real cause?
Does any one has the solution?
Click to expand...
Click to collapse
Highly doubt the charging circuit is damaged. Nor is it likely a visit with the Quick Charger triggered the anomaly. Far more probable is a problem with the USB cable and/or the USB socket on the HDX. Loose connectors are common especially if care is not taken when plugging/unplugging. Lack of a data connection support this opinion.
Reboot your HDX and try a different USB cable. What is the wall charger rating (should be on the back represented in mAh)? 3rd gen HDX devices can accept charge rates up to 1800 mAH although using a 'stronger' charger won't hurt provided the voltage rating is the industry standard 5V.
Hi
Thanks Davey126
.
I purchased this tab from a local shop. I tested it on shop, everything was fine.
But when I bring home, and I connected it with my Sony QC 2.0 and I observed charging was slow. I ignored it.
Next day I connect with my pc to copy some movies, but computer didn't respond. I tested my tab with different data cables and on another PC, but no success. Then I did Factory reset, but no difference.
.
I went to shop and got exchange the tab. At shop I tested charging, and PC connectivity. Everything was working fine at there.
I got back home, and again connected with my QC 2.0 charger (until then i did not know the cause). This time I see tab show SLOW charging.
I connected to my PC, same issue, no any detection. Tab only show charging when connected to PC. I repeated all possibilities again to resolve the issue.
At last, I assumed that it was because it may be due to miscommunication between device and charger, and maybe 9V damaged the charging circuit of the Tab.
teerus said:
Hi
Thanks Davey126
.
I purchased this tab from a local shop. I tested it on shop, everything was fine.
But when I bring home, and I connected it with my Sony QC 2.0 and I observed charging was slow. I ignored it.
Next day I connect with my pc to copy some movies, but computer didn't respond. I tested my tab with different data cables and on another PC, but no success. Then I did Factory reset, but no difference.
.
I went to shop and got exchange the tab. At shop I tested charging, and PC connectivity. Everything was working fine at there.
I got back home, and again connected with my QC 2.0 charger (until then i did not know the cause). This time I see tab show SLOW charging.
I connected to my PC, same issue, no any detection. Tab only show charging when connected to PC. I repeated all possibilities again to resolve the issue.
At last, I assumed that it was because it may be due to miscommunication between device and charger, and maybe 9V damaged the charging circuit of the Tab.
Click to expand...
Click to collapse
The Quick Charge standard allows for connection to older devices that do not support QC technology. In that case the charger should limit output to 5V as a significantly higher voltage would likely damage the charging circuit. Either the HDX did not communicate its capabilities properly or the charger cranked up the voltage when it should have remained at 5V.
The maximum charge rate for 3rd gen HDX device is ~9 watts (5V x 1.8A). Yet many vendors target this device for 18W+ QC 2.0 chargers that supposedly reduce charge times by 50% (they won't). Despite the faux claims there does not appear to be widespread complains of device damage. It would appear your Sony 2.0 QC charger may be defective.
Davey126 said:
The Quick Charge standard allows for connection to older devices that do not support QC technology. In that case the charger should limit output to 5V as a significantly higher voltage would likely damage the charging circuit. Either the HDX did not communicate its capabilities properly or the charger cranked up the voltage when it should have remained at 5V.
The maximum charge rate for 3rd gen HDX device is ~9 watts (5V x 1.8A). Yet many vendors target this device for 18W+ QC 2.0 chargers that supposedly reduce charge times by 50% (they won't). Despite the faux claims there does not appear to be widespread complains of device damage. It would appear your Sony 2.0 QC charger may be defective.
Click to expand...
Click to collapse
Thank you for your concern and collect info about HDX7.
I am a little-known of Quick Charger mechanism. "9V or 12V and 5V". QC 3.0, 4 or 4+. [A Quick Charger does not damage a normal 5V device.]
I charge all my home devices with Sony UHC10 quick charger. I think my charger is working normal as I do not see any abnormal behavior of it.
.
I can not find any other reason to damage my Tab.
Now my question is that, "is there any (alternative) way to resolve slow charging, also PC sync.
Thank you again!
teerus said:
...Now my question is that, "is there any (alternative) way to resolve slow charging, also PC sync.
Click to expand...
Click to collapse
Recommend acquiring a 'standard' 5V wall charger with a 2A minimum rating. This will permit your HDX to charge at the maximum rate (~1.8A) assuming the USB cable is in good shape. Performing this test will help determine if the charging circuit in your device is operating properly.
Most computers/laptops can only deliver a fraction of the maximum charge rate: ~0.5A for USB2 ports; ~0.9A for USB3.
Davey126 said:
Recommend acquiring a 'standard' 5V wall charger with a 2A minimum rating. This will permit your HDX to charge at the maximum rate (~1.8A) assuming the USB cable is in good shape. Performing this test will help determine if the charging circuit in your device is operating properly.
Click to expand...
Click to collapse
After realizing this problem I am using 2.1A branded charger, but still slow charging.
With Ampere app it shows max 280mA (same as UHC10). It means it is charging at standard rate of 500mA.
Changing the cables does not make any difference. (I have ANKER data cable)
THANKS
teerus said:
After realizing this problem I am using 2.1A branded charger, but still slow charging.
With Ampere app it shows max 280mA (same as UHC10). It means it is charging at standard rate of 500mA.
Changing the cables does not make any difference. (I have ANKER data cable)
THANKS
Click to expand...
Click to collapse
Anker cables have a solid reputation. That said, I would double check with another cable.
If cable and charger seem ok then it boils down to termination points (USB connections {should be snug}), imbedded charging circuit and/or kernel. There is nothing you can do about the kernel on a stock HDX. Nor can the charging circuit be repaired short of main/daughter board replacement.
Long shot suggestion: fully power down device and restart after 5-10 seconds. This will insure the bootloader/kernel are fully reset.
BTW - info I provided on QC standards and HDX capabilities are primarily from direct experience backed up by supporting documentation. This isn't just theoretical - I have a handful of HDX devices along with numerous USB meters as charging circuit efficiency (and deficiencies) is something of a personal interest.
@Davey126
Thank you very much
And big thumbs up :good:
I'll try it tonight and then update you as earlier as possible.
@Davey126
I drained my tab battery and then recharge it again but no difference. It woke up after 5 minutes. Still very low rate charging. Ampere app shows 280mAh maximum.
Meanwhile I brought my cousin's (same) tab. With 2.1A it shows +1500mAh on Ampere app. I drained it's battery, and when started charging, it was charging normally. Again in Ampere app @ +1500mAh.
.
I do not want to damage it's charging circuit. So I will not connect it with Sony UHC10.
So it is clear that charging circuit is damaged,in my tab.
If I find any solution, I'll share it here. Till then I'll use it by charging whole night (for 6 hours) everyday. Because it takes 6 to 8 hours to charge 100%.
.
Thank you for your cooperation.