Develop Bugs

Charging the E4GT with non oem adapter

The original Samsung charger outputs 5V---1000ma, I have an extra blackberry micro usb charger that outputs 5V---750ma.
I want to use my old blackberry charger in my office, will this different current output affect my battery long term or short term?

edlivian said:
The original Samsung charger outputs 5V---1000ma, I have an extra blackberry micro usb charger that outputs 5V---750ma.
I want to use my old blackberry charger in my office, will this different current output affect my battery long term or short term?
Click to expand...
Click to collapse
One of the immediate side effects will be that your phone will take a longer time to fully charge your battery.
If I helped you out in any way please thank me. Thanks.

Not sure how the blackberry chargers are. I know some of the Motorola chargers are accepted by the phone for high current charging (any charger that doesn't puts the phone in low current mode).
I charge my phone every night on my old 700mah Samsung charger and while it does take longer youd hardly notice unless you were trying to get as much charge in say an hour as possible. So as long as the phone doesn't limit it you should be good. <500mah is very noticeable.

I know it will take longer to charge. But Im not as familiar with appropriate charging output for li-ion as i am for ni-mh Sanyo eneloops for example that ideally should be charged at 220ma to maximize cell life.

edlivian said:
I know it will take longer to charge. But Im not as familiar with appropriate charging output for li-ion as i am for ni-mh Sanyo eneloops for example that ideally should be charged at 220ma to maximize cell life.
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The rule still applies the less current used to charge the better the lifespan. The phone was paired with a battery with the intention of using a 1 amp charger. The phone will only allow high current charging mode if it thinks the charger is Samsung. Shorting the data pins is a way to fool it and many aftermarket chargers already do this.
With your phone on and the phone in low current mode (320 mah i believe) you will have a hard time charging the phone if anything is wake locking the phone even screen off. You will even have trouble charging and using the phone at 500mah depending on whats going on.
The phone will be eating some amount of power from the charger, the battery is not always seeing as much current as you might think. I always stick by the practice of not deep discharging it, LiION would rather be topped off then not charged (geeze remember NiCad laptop batteries.... lol). I feel this battery will be the shortest lifespan of any phone or laptop I have ever had. Just due to how much use it sees.

Charger
Any micro usb charger should work. I've had a dozen or so different gadgets that all use micro usb from Blue Tooth headsets, to speakers. I use all chargers interchangeably with one noteable exception. My wife's Nook Tablet will only charge using the provided Nook charger. Found that out the hard way.
I have also found that not all micro usb cables will provide data transfer for all phones. I'm guessing different pin-outs? For instance when I was trying to root my ET4G, I forgot my OEM cable at home so I tried to use my EVO cable. That dind't work well at all.

My old blackberry chargers seemed to work fine but I started seeing some strange jumping around of the battery while using. For instance it would all of a sudden jump up to 100% charged then if I unplugged and plugged back in it would go back to 70% or whatever. I went back to only samsung or just charging off usb. I use my pc, printer, cable box etc to charge my phone.

I charge mine with either the stock charger that came with my E4GT, or an old 700MAh charger that came with my old Samsung Rant. Occasionally I use the charger that came with my HTC Evo 4G. I really can never tell a difference. Although, like someone above said, it seems as if non-Samsung usb cables will not charge when plugged into a computer. That's how it is with the HTC cable, and I've also tried an LG usb cable and got the same results.
Sent from my SPH-D710 using XDA

BBJon said:
I have also found that not all micro usb cables will provide data transfer for all phones. I'm guessing different pin-outs? For instance when I was trying to root my ET4G, I forgot my OEM cable at home so I tried to use my EVO cable. That dind't work well at all.
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Really? I rooted and always use Odin using an HTC cable...

EggosEvo said:
I charge mine with either the stock charger that came with my E4GT, or an old 700MAh charger that came with my old Samsung Rant. Occasionally I use the charger that came with my HTC Evo 4G. I really can never tell a difference. Although, like someone above said, it seems as if non-Samsung usb cables will not charge when plugged into a computer. That's how it is with the HTC cable, and I've also tried an LG usb cable and got the same results.
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I had the exclaim, the replacement to the rant and thats where my 700mah charger came from.
All of my other Micro USB cables except the one are non samsung and I use them all for charging, data and they charge while connected to pc. But none of them are from other phone manufacturers or anything. The Micro USB spec is what these phones are using there is no difference.
The difference that matters most of the time is tolerances. Its easy to end up with cables that will work well in one port but not another. The rest of the cable may also be out of spec and not work well or at all for certain purposes.

I've ruined two batteries because of non-OEM chargers on the ET4G. (Actually, ruined two, and made a third battery just render terrible performance.) I definitely don't have the problem with other devices I own, and it's definitely happened with two separate ET4G's I've owned.
So, "be very careful using alternate chargers" is all I would advise.
Sent from my SPH-D710 using xda premium

Please correct me if I'm wrong but isn't electricity the same no matter the source?
If the phone is looking to pull 1A and your charger is rated for .7A I'd be worried about the charger not the battery, which technically is a cell not a battery.
Tolerances were mentioned before and I think that is most of the problem with certain cables working fine for some people and not others. All connectors and cabling are supposed to meet the USB spec and many cheap ones don't. Also the supposed 10,000 insertion rating for micro USB is a bit optimistic imo. I replace cables after a couple months max because of loose connections.
Sent from my SPH-D710 using XDA

dberend said:
Please correct me if I'm wrong but isn't electricity the same no matter the source?
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Not really because these chargers are doing AC to DC conversion and voltage regulation is a huge factor in its job. With a bad charger design not only can charging be affected, possibly even hurt the battery. Since the phone will consumer charger power to run while on the charger the phone can become unstable. Not talking a defective charger, just bad and cheap designs.
dberend said:
If the phone is looking to pull 1A and your charger is rated for .7A I'd be worried about the charger not the battery, which technically is a cell not a battery
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Click to collapse
I think about that alot actually. Coming from PC power supplies you never want to overload the unit. But I know for a fact I have devices that demand more from chargers than can be given, and do not have the low current and high current modes like this phone.
I am no electrical engineer and am only familiar with AC to DC and DC to AC circuits and various voltage regulation techiniques. But it is possible to current limit as well right? You design a half amp charger, with the data pin short to put the Samsung into high current. You limit the current to 500 mah but over build the components just a little to increase lifespan.
Anyways, I bought a 2.1 Amp RCA wall charger from walmart last night on a wim. 9 bucks, might come in handy when i get a tablet. Has a 1 Amp side and a 2.1 Amp thats shared with the 1 Amp. Phone didn't show any ill will to it and I had my Schosche GoBatt on the 1 amp end. If the phones drawing too much current could be bad in the long run but its working so far. Charged at the normal speed of the stock charger.

RainMotorsports said:
Not really because these chargers are doing AC to DC conversion and voltage regulation is a huge factor in its job. With a bad charger design not only can charging be affected, possibly even hurt the battery. Since the phone will consumer charger power to run while on the charger the phone can become unstable. Not talking a defective charger, just bad and cheap designs.
Click to expand...
Click to collapse
I agree with you on bad and cheap designs. How many tv's and other electronics have been rendered useless by a few substandard capacitors that saved the manufacturer $.02 per unit?
I try not to use any charger that doesn't have HTC, Samsung, etc on the label. I figure if they were willing to back it warranty wise for the original device it should put out clean enough power.
I'm far from being engineer but I do quite a bit of hardware hacking and learned a little bit about electronics when I was at Ft Gordon. So I'm not completely lost around a multimeter
I would imagine that there is some protection built into the charging circuit of the phone itself. How effective or what kind of tolerance Idk suppose I could look for datasheets if anybody really cares.
Sent from my SPH-D710 using XDA

Best wall charger

Hi everyone,
I have a problem with my original wall charger that came with the phone. There seems to be something wrong between the cable and the connector you are plugging into the phone. I need to have the cable in a specific position for the phone to be able to recharge.
The question is, is there any better charger than the original samsung one? I could probably get it replaced as it still is in warranty, but I don't like how slow it recharges the phone. If I am running a 3D game the phone is slowly DISCHARGING even when plugged in to a wall charger.
I noticed the charger has only 500-700 mA output. I had an older htc charger which had 1000 mA output. Would a charger like this recharge my phone faster? I have seen some posts about non-samsung chargers not being able to recharge the battery fast as there is some kind of protection built into the phone.
I would also consider buying a wireless charger if it was available for a reasonable price.
Are you all using the stock chargers?
Thanks in advance for any help.

you can read this thread: http://forum.xda-developers.com/showthread.php?t=1721677&highlight=charging
Just to make sure it is the charger's fault, does the phone charge normally if connected to a computer, from the USB port?

Thanks for the link.
Yes, phone charges and transfers data from USB without any problem, so it should be fault on the charger.
Reading through that thread, I guess there is no point in buying a more powerful charger.

as i said there, i use a nokia 1200mAh charger and the charging time is more than 2 hours, so we have to deal with it. The thing you should care of is the quality of the charger to avoid the touchscreen known problems

Imho you don`t need better (more powerfull) charger because of the hardware limitations. What you should do is to try any other microUSB charger just to see if that solves your problem. So if any of your friends of family have other samsung or nokia etc. phone, thats charging with microUSB, plug it into your phone to see if it solves your problem. You will know what to do next if it does

al3x_xct said:
as i said there, i use a nokia 1200mAh charger and the charging time is more than 2 hours, so we have to deal with it. The thing you should care of is the quality of the charger to avoid the touchscreen known problems
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Click to collapse
how do I check the quality of the charger?

USB wires, right and wrong ones?

I have a 2meter USB to MicroUSB cable(EBAY) plugged into mains which does Not charge the phone when screen is on. In fact it Loses charge when watching films .
But when l plug in the one that came with the phone (1 meter) it charges the phone no problem, regardless of what you are doing.
Anybody have any ideas for why this is happening?
Length of wire? or just bad quality of wire? But l have tried a few different 2m ones. Same drain.
(Also same results with different roms)
Cheers me dears
(Was getting no traction in accessories)

DaffyOnLSD said:
I have a 2meter USB to MicroUSB cable(EBAY) plugged into mains which does Not charge the phone when screen is on. In fact it Loses charge when watching films .
But when l plug in the one that came with the phone (1 meter) it charges the phone no problem, regardless of what you are doing.
Anybody have any ideas for why this is happening?
Length of wire? or just bad quality of wire? But l have tried a few different 2m ones. Same drain.
(Also same results with different roms)
Cheers me dears
(Was getting no traction in accessories)
Click to expand...
Click to collapse
You might have noticed that smaller the phone, the larger the charging cable comes with it.
and the larger phone, and tablets have decreasing charger cable lengths. Also, the charging cable become thicker as the device becomes more power hungry.
This all comes down to a simple explaination that longer and thinner cables have more impedance, and thicker and shorted cables have less resistance...
This is to cover up for the amount of power the device will consume in order to get charged, and hence, result in a different "quality" of charge.
Also, some cable, like that of Nokia, do not run on touchscreen samsung phones. This may also be because of the difference in power output, as they may not fulfill the requirements which the latter needs.

Ok, so how about getting a beefier longer wire? I've seen a brand one for 10 £ claiming to be grippier blah blah. Obviously no claim for what it's able to charge and how fast.
Will this change anything?
I'm guessing im doomed to be always leaning in to the wall if wanting to use the phone and getting it charged.
And thanks for explaining things, sadly that is what I feared.

DaffyOnLSD said:
Ok, so how about getting a beefier longer wire? I've seen a brand one for 10 £ claiming to be grippier blah blah. Obviously no claim for what it's able to charge and how fast.
Will this change anything?
I'm guessing im doomed to be always leaning in to the wall if wanting to use the phone and getting it charged.
And thanks for explaining things, sadly that is what I feared.
Click to expand...
Click to collapse
It is not definitely that beefier and shorter wires will charge quickly/better. They need to have correct power ratings and other j7mbo mumbo, which is most definitely best in the stock charger you get

Just buy a usb extension cable with plug and socket on each end. You have to use the Samsung charger AND the Samsung USB> MiroUSB cable. Beetween you place the extension cable.
The reason is, in the Micro-USB-Plug of the Samsung-Cable, i think there is a Resistor between pin 4 and 5 that makes the Phone change into high-charging Mode (AC-charging).
Otherwise on USB-Charging you have only 500 mA. That is not enough for the Note 2, if the Screen is on. The Phone will not charge.
regards

Thanks. .. should of tried that. Forgot I've loads of them.

DaffyOnLSD said:
Thanks. .. should of tried that. Forgot I've loads of them.
Click to expand...
Click to collapse
Please let us know, if it works now how it should. Thanks...

Same here, with random internet cables it just doesn't charge fast, but yes with the original.
I was looking for some good cables to use it but I didn't see any info to know what are the faster ones for charging.

Right, some bad news regarding USB extenders, I used a 2 meter extender with the white stock Samsung cable.. screen on, torrent app downloading, did NOT charge at all. But did not lose anything either.
I then found a 0.3 meter USB extender with stock Samsung. And it is charging, but I would say it isn't as fast(very close to normal), but the main thing it is slowly charging. Make what you will of this.
My USB extenders are from ebay crap

I have a s2 original charger
Output 0.79 takes 7 hrs to charge note2
Original note 2 charger is fast charger
Output 2.00 tkes 4 hrs to charge the phone
So it depends upon the uotput of the charger as i use the s2 usb to charge wt note 2 charger and again used the note 2 usb to charge 5he phonr at both time the chargin time was same
So i think the length or thilness of the cable dosent matter only thing matters is the charger output
Secondly if u use nonoem cables or chargers the usb port may give off or ur phone freezes while chargin so pls avoid nonoem cables
U can use oem cables of sony , htc, blackberry, even micromax and spice in india which r runnin androud but dont use first copy of chargers ir cables as they would harm ur phone

HTC 10 Magnetic Charger

Wonder if anyone here uses a magnetic charging cable.
Consider buying one but I'm afraid that it slows down the charging process,
or even worse, damaging my charging port and battery.
Any ideas?

No, it's not going to damage your charging port or your battery.
Worst case scenario the magnetic "cable" you buy doesn't have the data pins which is a prerequisite for Quick Charge to work because of the digital handshake.
Something like the Zaptip for example would be a proper one that has the data pins as well.

lagittaja said:
No, it's not going to damage your charging port or your battery.
Worst case scenario the magnetic "cable" you buy doesn't have the data pins which is a prerequisite for Quick Charge to work because of the digital handshake.
Something like the Zaptip for example would be a proper one that has the data pins as well.
Click to expand...
Click to collapse
I saw one on ebay that says 2.4A input, is that good enough?

I dont think so

QC 3 can provide charging inputs greater than 3A. I think I've seen as high as 3.4A, according to Ampere.

Very slow charging problem

Hi, I brought a Nokia 6, for my 11 year old son about a month ago.
It was fine until about 4 days ago, when fast charging stopped working, and it only charges very slowly. If the phone is switched off, then it charges at a rate of about 4% per hour, so an overnight charge will charge the battery from empty to about 35%. If the phone is booted but otherwise idle, then the charger will just about keep up with power consumption and the battery percentage does not increase or decrease.
I have tried multiple chargers, cables and power banks. It makes no difference. The fact that I get slow charging when the phone is off suggests that the culprit is unlikely to be a battery draining app.
There is a suspicion of hardware damage, as my son may have pulled the charging cable out, or pushed it in too hard, bent it sideways or the like, though the set of symptoms is odd for a hardware issue, and feels more like software, and in any case the USB type C connector is normally very robust.
The phone is running the latest stock firmware from Nokia. It is not rooted unlocked or the like.
Has anyone seen anything similar? Can you suggest what I can do to investigate the problem further?

Did any of those support Qualcomm quick charge 3 or 4? Try installing Ampere on his phone and check the current from a fast charger with a good USB C cable. If it shows something in the neighborhood of 1500mA to 2300mA this is a software problem. Otherwise this is a hardware problem from somewhere along the circuit. At best all cables you tested are bad. At worst your phone needs a repair.

ap4ss3rby said:
Did any of those support Qualcomm quick charge 3 or 4? Try installing Ampere on his phone and check the current from a fast charger with a good USB C cable. If it shows something in the neighborhood of 1500mA to 2300mA this is a software problem. Otherwise this is a hardware problem from somewhere along the circuit. At best all cables you tested are bad. At worst your phone needs a repair.
Click to expand...
Click to collapse
Thanks.
I don't think any of the charges I used support Qualcomm quick charge, is it worth buying one on amazon prime to check?
I will install Ampere and report back.

chrestomanci said:
Thanks.
I don't think any of the charges I used support Qualcomm quick charge, is it worth buying one on amazon prime to check?
I will install Ampere and report back.
Click to expand...
Click to collapse
If you are the type to charge your phone overnight I don't think you need it unless you forgot. Running with a 50-70
Battery is better than having a dead battery, so it is worth it for the safety of mind.
My Nokia charger seems to support it out of the box. It has [email protected], [email protected] and [email protected] Depending on where you got it yours could very well be similar to mine.

ap4ss3rby said:
Did any of those support Qualcomm quick charge 3 or 4? Try installing Ampere on his phone and check the current from a fast charger with a good USB C cable. If it shows something in the neighborhood of 1500mA to 2300mA this is a software problem. Otherwise this is a hardware problem from somewhere along the circuit. At best all cables you tested are bad. At worst your phone needs a repair.
Click to expand...
Click to collapse
I installed Ampere, and it is reporting charge rates of 150 to 450 mA using a generic charger and cable, that works fine with my OnePlus phone. I will have to find the original Nokia charger to be sure, but it does look like some sort of hardware issue.
Thanks.

chrestomanci said:
I installed Ampere, and it is reporting charge rates of 150 to 450 mA using a generic charger and cable, that works fine with my OnePlus phone. I will have to find the original Nokia charger to be sure, but it does look like some sort of hardware issue.
Thanks.
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Click to collapse
Yeah I noticed the phone is picky about what charges it and what doesn't, probably the phone playing it safe with keeping the lithium in good condition.

ap4ss3rby said:
Yeah I noticed the phone is picky about what charges it and what doesn't, probably the phone playing it safe with keeping the lithium in good condition.
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Interesting. I have charged my TA-1068 on all types of chargers. All have worked within an average amount of time. I wonder if different models are more or less picky. To me, it sounds as if the charging port might be damaged. Kids tend to be tough on equipment.

BoloMKXXVIII said:
Interesting. I have charged my TA-1068 on all types of chargers. All have worked within an average amount of time. I wonder if different models are more or less picky. To me, it sounds as if the charging port might be damaged. Kids tend to be tough on equipment.
Click to expand...
Click to collapse
True, the phone itself might be one or two steps from being a brick with a decent smartphone inside but ports are not always invincible.

Quick update: I took the phone back to the store, and the store decided that it was probably a defect in the phone (not user damage) so they have sent it to Nokia for warranty work. With luck I should get it back repaired in a week or so.
I will post again to report the outcome.

I too noticed this traveling
ap4ss3rby said:
Yeah I noticed the phone is picky about what charges it and what doesn't, probably the phone playing it safe with keeping the lithium in good condition.
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Click to collapse
If i use the OE charger its fine but once i tired to use the USB port on my car stereo or cig lighter USB adapter it actually drained the battery and it wouldnt prompt a USB charging curtain notification but it would show the lighting bolt/battery icon. Or the notification curtain would display the last thing i used USB for like moving pictures instead of every other phone ive ever owned which would default to USB charging