Develop Bugs

Please Help: Problems with charging!!

:?: Hello. I was wondering if anybody has had same problem as i have.
I work on my xdaIIs a fair bit away from home and as a result i need to recharge it every now and then. I have a usb charger cable that i use to charge it using other computers and also via a usb car charger pluggy thingy sorry cant remember name :lol:
The problem i have is that while i am charging my xdaIIs using this method the battery power starts running DOWN as if the power is being drained!!! The device is definately telling me its being recharged.
Please help... I have no idea what is going on???!!!
THANKYOU in advance. 8) :?

Depends what you are using to charge I had the same problem with a mini sync cable I bought sync'd fine but didnt charge but that because it was designed for an XDA not an XDA2 bought a new one from boxwave and its fine.
But certainly if your device is sufficiently drained it will be pulling more power that your PC's USB slot will be willing to give it so you could be running into that.

Novice Gadget Boy said:
The problem i have is that while i am charging my xdaIIs using this method the battery power starts running DOWN as if the power is being drained!!! The device is definately telling me its being recharged.
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I would guess that the charger doesn't supply sufficient current to actually charge the unit. I say this, because I have seen exactly the same thing (= orange light on and the battery power level decreasing fast) when I built my custom charger for XDAII. XDAII is very "picky" and needs a lot of power to charge and the "USB car charger", as you described it, probably can't supply enough.

Thanks for the reply guys.
It used to work when i first bought it but now doesnt.
Any ideas on what i could purchase that WOULD work??

I have had a similiar problem with a similiar charging setup, but mine charges fine as long as the battery level does not fall too low, if it gets below about 30% then it seems to decharge instead of charge... its really strange.

Cigarrete adaptor charger Draining mine too..
I had a Ipaq 2210 installed in the handle bars of my bike with a Holux BT GPS, recently after breaking 2 of them( IPAQS) I've replaced with a XDA IIs, I had a cigarrete adaptor for the IPAQs and another for powering the speakers... as now i can't use the speakers (due to the horrible 2.5 jack)I've modified the supplied connector for charging without the craddle to fit the connector for the speakers...
I realized from time to time the XDA turned it self off... and last travel it just died with the orange led on and battery 0%....
However first time I've used it was a 700km trip (paris - switzerland) and that time had no pbm (once or twice it turned off but that was all)
I've noticed that the supplied wall power adaptor is a 2Amp one... which looks like enourmous to me... but i tought that cigarrete adaptors were not amperage limited (but for your battery and generator/alternator)
One think I havent tried is to cut the Ipaq's one and fit the connector there... as the Ipaq uses the same wall power thing perhaps the cigarrete adaptor will be the same too....
Please any advice for me ??
I would also like to mod the suppplied connector into a usb stand alone sync cable (pls advise on it too....)
Also i would like to fit an Ipaq IR led onto the XDA to use it as remote for my digital rebel camera.... (advice again?)
Thanks in advance
N

[Q] External Charger for Galaxy Tab 10.1

Any suggestions on an external battery? Woudl hate to buy battery with the wrong rating, have been using one for when I travel to charge my phone at least 3 times when away from a socket especially overseas

Docsboard said:
Any suggestions on an external battery? Woudl hate to buy battery with the wrong rating, have been using one for when I travel to charge my phone at least 3 times when away from a socket especially overseas
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Needs to be able to supply 2A.
Tab will not charge unless it sees D+ and D- shorted together at about 1.24 volts (See the "make your own cables" thread and the "universal charging adapter" schematic)
I believe the Tab's internal battery is something like 6-7 AH. So the external battery will need to be a 8-9 AH Li-Ion to get one full tab charge (Charging isn't 100% efficient). That's around 4 18650s.

Don't have the expertise to make own cable, has anyone bought any external battery they can recommend?
I've used one for my phones for 3 years, I just change the cable and get 3 charges per full charge, a life saver for a frequent traveler
Sent from my GT-P7510 using Tapatalk

I think there's a universal charging adapter available from DealExtreme - I don't have the link, read through some of the other charger threads. Might try searching DX for "P1000"

I have a PhoneSuit Primo Power Core. It's a 7000mah battery that comes with charging adapters for several devices including the Tab. Works great.

URPREY said:
I have a PhoneSuit Primo Power Core. It's a 7000mah battery that comes with charging adapters for several devices including the Tab. Works great.
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Just got it from FRY'S for $99, love it, only beef, wish it used a standard USB wall charger , hate to have too many chargers

Does anyone know if energizer xp8000 would work fine with the tablet?
here is the link
http://www.energizerpowerpacks.com/vn/products/xp8000/

URPREY said:
I have a PhoneSuit Primo Power Core. It's a 7000mah battery that comes with charging adapters for several devices including the Tab. Works great.
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Can you clarify what you mean by "adapters ... including the Tab"?
I picked one up from Fry's and it works, but it requires me to use my Samsung cable that came with the tablet. I can trickle charge that way, and it does come with an adapter that provides the proper resistance to get the tab into "AC" charge mode, but there is no GT specific cable in the kit.
Is there another version that does come with a GT specific cable?
And does it need the resistance adapter?

flarbear said:
Can you clarify what you mean by "adapters ... including the Tab"?
I picked one up from Fry's and it works, but it requires me to use my Samsung cable that came with the tablet. I can trickle charge that way, and it does come with an adapter that provides the proper resistance to get the tab into "AC" charge mode, but there is no GT specific cable in the kit.
Is there another version that does come with a GT specific cable?
And does it need the resistance adapter?
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Mine came with several adapters that works with various devices including my Tab. It had a USB cable with a round opening at the end and the adapters slide into the end of it. You might contact the company if yours didn't come with it..

URPREY said:
Mine came with several adapters that works with various devices including my Tab. It had a USB cable with a round opening at the end and the adapters slide into the end of it. You might contact the company if yours didn't come with it..
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Yes, mine came with that cable and a bunch of adapters including one that looked close but just wouldn't fit into the tab's slot so I assumed it was for iThings. I'll try it again and check the company's support site...

Smartphone External Battery Pack Recommendations?

I've been looking into an external battery pack for my phone as a backup, partly because the phones I am considering buying in the very near future don't have replaceable batteries, and partly because a replaceable or even extended battery doesn't really guarantee I can get through a day.
My biggest fear and reason for wanting this battery is if I have little to no charge in the evening/night and can't manage to get a decent amount charged. Having a battery backup would make me feel more secure knowing I have something to keep my phone going even if I somehow end up away from a charger for an extended period of time, however irrational such a situation may be.
As such, I have been looking and found there are 3 different types of battery packs.
1) Built in Lithium ion (most common)
2) Replaceable lithium ion (ibattz mojo is the only example I can find)
3) AA based charger.
Now charger type 1 seems to be common, but overall the battery will lose charging capacity over time, not be replaceable, and will need to be tossed.
Type 2 and 3, the battery can be easily replaced, especially on the cheap. However type 2 can be smaller and slimmer, while type 3 has the benefit of using LSD NiMH batteries. For those who don't know. LSD is Low Self-Discharge in this case. A lithium ion battery dies every week or two just sitting there, LSD NiMH batteries can hold up to 75 or 85% of their charge even after a year of just sitting there.
Overall type 3 seems the most ideal. However there is another element. Some chargers have cables built in, while others have just a standard usb plug. At first I thought the USB plug was annoying and a built in cable made more sense. However after some thought, I realized the built in cables added too much bulk, and I found keychain cables, which make more sense. My favorite example of this, is the mojo treble keychain, which seems to do everything and then some.
So basically now I am looking for the best AA based charger that doesn't have any usb cable built in, just a simple full usb plug. The closest I can find is by energizer, but it has the plug built in on a super short cable that looks as if it would put undue stress on my phone if I used it.
However if anyone has any other suggestions, or reasons to recommend something else, I'd greatly appreciate any input. At this time I just want to find the most versatile option. I would also love to hear other reasons for why people went with options other than AA rechargeables for their battery packs.

dkkeo said:
Extend battery:
(1) first of all to see the instruction for use,
(2) choosing a charging performance good charger. Charging time, keep the battery clean, dry. Helpful hints: use a mobile phone to send a text message, playing games is the power consumption
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Any reccommended battery pack for LG nitro???

I use Belkin External Battery pack, reliable,
my other mates bought cheaper made in china battery pack but after a month or so, they are already in the bin, the battery is damaged.

Charger considerations
Hi,
I need advise for the following:
Charger A (Li-polymer battery) output : 5V, 1A
Charger B (Li-polymer battery) output : 5V, 500mA
Device input: 5V, 750mAH (Li-ion / Li-polymer)
When using Charger A, some people comment that it will limit the current of 750mAH for the device and the device's battery should be fine since both the charger and device are at 5V. However, some people comment that this will shorten the battery life of the device since it will perform a 'quick charge' using 1A.
When using Charger B, some people comment that the device will draw more current than it can deliver and causes it to heat up and reduces the charger's life. However, some people comment that Charger B will extend the battery life of the device since it performs a 'slow charge'.
I also read that USB pins on the charger denotes if the charger is a PC or a dedicated charger. If it is a PC, the device will limit the drawing current. If it is a dedicated charger, the device will draw more current to charge itself.
I am confused as to who is right and which charger should i be using.
Can someone enlighten me ?
Thank you very much.

JefferyTeo said:
I use Belkin External Battery pack, reliable,
my other mates bought cheaper made in china battery pack but after a month or so, they are already in the bin, the battery is damaged.
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Click to collapse
80%-90% external battery packs are made in China at present. Some of the brands make good batteries as well.

tsgan272 said:
80%-90% external battery packs are made in China at present. Some of the brands make good batteries as well.
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yes most external battery packs are made in china ,so i prefer to buy them from china supplier online ,
with better price and more convenient .belowed is the websites i often bought from ,which is better .
http://www.kingsbuying.com/consumer-electronics/power-banks.html
http://www.dx.com/s/power+bank
http://www.banggood.com/buy/Power-bank.html

[Q] LG Optimus G E973 Charging Time Issue

Hi Everyone.
I have a question about my used phone LG Optimus G E973. It charge very slowly. It always take about 6 hours for a full charge. If I use the phone, the charging percentage won't go up but go down slowly even if It is being charged.
Is it normal for this model?

Rexkh said:
Hi Everyone.
I have a question about my used phone LG Optimus G E973. It charge very slowly. It always take about 6 hours for a full charge. If I use the phone, the charging percentage won't go up but go down slowly even if It is being charged.
Is it normal for this model?
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change the charger,.... mine too takes 6hrs on lg charger.. am using .5amp rated charger of lumia 520 .. it charges it in 2:30

I don't think because of charger. I use the same charger with my iPhone and it charge very quick.

Rexkh said:
I don't think because of charger. I use the same charger with my iPhone and it charge very quick.
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its becaus of that usb cable..... try different usb cable with same charger and it charges quickly.. :good:

krishnanmailbox1 said:
its becaus of that usb cable..... try different usb cable with same charger and it charges quickly.. :good:
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I did, still slow. I guess it my phone. I just want to make sure that all phones of this model are the same or just me.

Rexkh said:
I did, still slow. I guess it my phone. I just want to make sure that all phones of this model are the same or just me.
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Since the iphone has a different battery, the charger is also different.
To make sure your battery doesn't die, I suggest you use an LG charger, or at least a charger for a phone with the same amount of mAh on the battery (2100, in this case)

howaboudno said:
Since the iphone has a different battery, the charger is also different.
To make sure your battery doesn't die, I suggest you use an LG charger, or at least a charger for a phone with the same amount of mAh on the battery (2100, in this case)
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I've been using LG Charger to charge my LG phone. It's already the same model. And you? Do you have the same model as mine?

Rexkh said:
I've been using LG Charger to charge my LG phone. It's already the same model. And you? Do you have the same model as mine?
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I own the E975, which is slightly different, but the specs are the same and I have not run into this problem before. So I'm guessing it's an error in either the USB-cable or the phone's battery. I'm not sure though.

howaboudno said:
I own the E975, which is slightly different, but the specs are the same and I have not run into this problem before. So I'm guessing it's an error in either the USB-cable or the phone's battery. I'm not sure though.
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Too bad. So there is something wrong with my phone. Is your main power 110V or 220V? The power in my place is 110V. Sometime I get message "Slow Charging" when I connect my phone to the charger.

Rexkh said:
Too bad. So there is something wrong with my phone. Is your main power 110V or 220V? The power in my place is 110V. Sometime I get message "Slow Charging" when I connect my phone to the charger.
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I did a little research (I googled it) and that might just the cause of your problem. Many people have said that charging on a 110v outlet is not only slower but also less efficient. To charge your phone faster with a lower voltage oulet, they recommend to buy a charger that is specially made for that voltage, but that might not be a problem since also my charger (LG charger) supports voltages from 100V up to 240V.
"In a very layman terms, voltage is what drives the real power (amperes) into your device. So the lower your voltage as per specified rating then the lower the movement of power to your device.
However, when power moves slowly into your device, it stays longer"
I hope this gives you enough information concerning your problem

Sound like I'm lucky to have a phone which can be charged slowly. How many percents you get if you charge your phone for 15 minutes?

howaboudno said:
I did a little research (I googled it) and that might just the cause of your problem. Many people have said that charging on a 110v outlet is not only slower but also less efficient. To charge your phone faster with a lower voltage oulet, they recommend to buy a charger that is specially made for that voltage, but that might not be a problem since also my charger (LG charger) supports voltages from 100V up to 240V.
"In a very layman terms, voltage is what drives the real power (amperes) into your device. So the lower your voltage as per specified rating then the lower the movement of power to your device.
However, when power moves slowly into your device, it stays longer")
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I am sorry in advance, my comment is not directed at you personally, since you found this info online...
This is a complete and utter nonsense. It's not even funny, it's just dumb. First off, auto-sensing chargers will work with any AC mains within standard tolerances. 110V, 120V, 220V, 240V -- doesn't matter at all, the charger will output stabilized 5VDC, and will supply the current (Amps) up to its rated maximum. Also, saying that the voltage drives the amps is another BS. The voltage in this case doesn't change -- it stays at 5V (unless you have a crappy or defective charger, of course). Only the charging circuit in the phone determines the current that it draws from the charger.
Speaking of the OP's problem, there might be different reasons for a slow charge. All of them have already been mentioned in this thread. The easiest thing to check is to change the USB cable. Speaking from experience, I have two particular cables that consistently exhibit this issue -- it all depends on the conductors (wires) and the quality of connections. Grab another cable, and see what happens. Next step would be to change the charger for something rated higher (2A, for example). I am 99% sure either of these replacements will fix the issue. If neither of these things work, then there may be a problem with the battery, which can be replaced. The worst-case scenario is a problem with the phone itself (highly unlikely)...

kt-Froggy said:
I am sorry in advance, my comment is not directed at you personally, since you found this info online...
This is a complete and utter nonsense. It's not even funny, it's just dumb. First off, auto-sensing chargers will work with any AC mains within standard tolerances. 110V, 120V, 220V, 240V -- doesn't matter at all, the charger will output stabilized 5VDC, and will supply the current (Amps) up to its rated maximum. Also, saying that the voltage drives the amps is another BS. The voltage in this case doesn't change -- it stays at 5V (unless you have a crappy or defective charger, of course). Only the charging circuit in the phone determines the current that it draws from the charger.
Speaking of the OP's problem, there might be different reasons for a slow charge. All of them have already been mentioned in this thread. The easiest thing to check is to change the USB cable. Speaking from experience, I have two particular cables that consistently exhibit this issue -- it all depends on the conductors (wires) and the quality of connections. Grab another cable, and see what happens. Next step would be to change the charger for something rated higher (2A, for example). I am 99% sure either of these replacements will fix the issue. If neither of these things work, then there may be a problem with the battery, which can be replaced. The worst-case scenario is a problem with the phone itself (highly unlikely)...
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Guess I really shouldnt trust the internet that much, huh? Haha
But yeah that was the first thing I thought which caused the problem
Thanks for pointing out my mistakes

howaboudno said:
Guess I really shouldnt trust the internet that much, huh? Haha
But yeah that was the first thing I thought which caused the problem
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Click to collapse
Well, explanations like those you quoted could be reasonable to some extent only if you have a really bad charger (either broken/defective, or just made like crap to begin with). I am talking about properly designed and functioning chargers. I have a wonderful example of a cutting-edge engineering from China sitting in my desk drawer: it's a microUSB car charger, which has direct connections from a 12VDC socket to microUSB pins, protected by a 5Amp fuse. Oh, and a cute red LED light, of course. :silly: When something like this is used, anything can happen... If a phone survives, it could be a good advertising for a phone's manufacturer: "Our phones work no matter how hard you try to kill them!"

As I already mentioned, I think it's neither charger nor cable problem. How do I guess that? Well,
1st, I charge my iPhone with iPhone cable and "A" charger. It charge very quick so "A" charger shouldn't be a problem
2st, I charge my iPhone with iPhone cable and LG Charger. It charge very quick so LG Charger shouldn't have problem.
3rd, I charge another android phone with "A" cable and "A" charger. It charge very quick so "A" cable has no problem.
4th, I charge my LG Optimus G E973 with "A" cable with LG charger. The charge is very slow.
Therefore, I guess, none of the accessories have any problem so I think I'm the only one in the world who have this problem.

Rexkh said:
As I already mentioned, I think it's neither charger nor cable problem. How do I guess that? Well,
1st, I charge my iPhone with iPhone cable and "A" charger. It charge very quick so "A" charger shouldn't be a problem
2st, I charge my iPhone with iPhone cable and LG Charger. It charge very quick so LG Charger shouldn't have problem.
3rd, I charge another android phone with "A" cable and "A" charger. It charge very quick so "A" cable has no problem.
4th, I charge my LG Optimus G E973 with "A" cable with LG charger. The charge is very slow.
Therefore, I guess, none of the accessories have any problem so I think I'm the only one in the world who have this problem.
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your phone usb port might be a defective one lol

My LG E975 used to charge frustratingly slow when I first bought (20 percent over 3 hours). Before taking it to warranty, I did test around to see what's the problem and found it was because of the cable. Some cables work better than the others though. I used the LG charger with the cable of my Sony phone -> still slow; with Asus tablet cable -> working normal (1 percent up every 1 - 1,5min).
Further testing, I used the "faulty" LG cable to charge my Asus tablet, and it worked fine. So (I guess) the USB port of the phone is just being picky on cables . Try charging with some other cables for a few minutes to see if any works for your phone.

any way to change the currents charging voltage in kernel? i have this issue with CM11 but not on stock

[Q] Charger for Z1C

Hi,
I'm the owner of a new Z1C and I'm wondering if it would be harmful for the battery to charge it with a normal usb cable different from the one supplied by Sony. I can imagine it should not be an issue, but I also tried to connect a older headphones to the Z1C and a popup warned me about a "Non-Sony headphones", so... I prefer to ask to be really sure.
Can I charge the phone with a normal usb cable? Thanks in advance,

I've actually been using the cable that came with my Kindle and it works perfectly, no issues at all. It charges quickly and I don't get any errors on my phone. I've also used the cable that came with my Ipega bluetooth controller and it works as well.
I would however recommend staying away from the wall adapters they sell at CVS/Walgreens near the front, and possibly the cables too. I noticed that whenever I plugged in my phone using the wall adapter, the touch screen wouldn't function properly and acted like every time I touched the screen, even if it was to quickly swipe, that I was pressing instead. Horrible.

I also use a non-Sony charger and it works fine. As long is it is a micro-usb charger it will be fine. Headphones on the other hand are different though like you said. I tried a pair of earphones from my older Sony Ericsson X8 and it tells me it is not a supported so yea...

Since the USB specification is quite rigorous there should be no problems, except for very cheap adapters which provide an unstable voltage.

Hello @dramatictone;,
It's safe to charge it with another charger as long as the ampere of the charger is not higher than 2A. However, most aftermarket chargers are rated at 1A, which means that it'll charge slower.
It's also important to buy a quality charger with the safety marks; if you don't want to risk burning down your house while charging over night. Don't buy those generic China chargers, they're not safe to use.
I hope my answer cleared any doubts.
Have a great day,
GethPrime

Thank you very much everybody, I'm more confident now

dramatictone said:
Thank you very much everybody, I'm more confident now
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No problem, but remember to buy a quality charger and you'll be fine. However, any MicroUSB cable will be fine for charging, even cheap China ones

GethPrime said:
No problem, but remember to buy a quality charger and you'll be fine. However, any MicroUSB cable will be fine for charging, even cheap China ones
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Yep. I had planned to use the official Sony charger at home and the oldie Samsung Galaxy S charger (or even a microusb cable) when charging the phone at the office, but I wanted to be really sure first: I've been using the phone for three days now and I have only had to charge it just once, so I don't want to damage the battery now that I have a phone that lasts more than one day

dramatictone said:
Yep. I had planned to use the official Sony charger at home and the oldie Samsung Galaxy S charger (or even a microusb cable) when charging the phone at the office, but I wanted to be really sure first: I've been using the phone for three days now and I have only had to charge it just once, so I don't want to damage the battery now that I have a phone that lasts more than one day
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Note that the old Samsung chargers are rated at 0,7A, so it'll take some time to charge. Other than that it'll work just fine.