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I am on the road a lot and don't want to be carrying the HTC charger with me. For my Treo, I had a foldable USB AC adapter (.8A and 5V) to which I plugged in a Sync and Charge cable and it did just fine.
After reading all the comments about there being two ways to charge a Tilt - fast and slow, I decided to test out a retractable USB data cable with my USB AC brick. I set the option in Power to "Not charge the battery when connected to the PC." and plugged it in. Nothing. I then unticked the box and sure enough, it started to charge. As I was at 70% of the charge, I expected this to drag on, but it didn't. It took about 1 hour and was fully charged.
I'm still a bit worried about charging this way - the description of the Lil Sync cable for the Tilt says that while it might work, under certain circumstances it won't if your battery is below 30% of a charge. Has anyone seen this happen? The last thing I want is to go away for a few days and be stuck with a dead batttery.
Do I need to pick up a special cable from ppctechs or boxwave just to charge? Should I just carry the supplied charger?
I always charge my kaiser just using the sync cable and it works fine even from a flat battery. there seems to be absolutely no need to carry an AC adapter around when you can just connect it to a computer to charge.
Thanks Spooki. Just curious - how long does a charge usually take when you charge against a computer's USB?
it seems to take roughly twice as long as a wall charger but i work with PC's all day so doesn't really bother me, much easier than carrying a charger around.
Totally stock (but i don't think it matters).
Plug the phone in, orange LED comes on.
Hold it or place in on the counter five seconds later, LED is off.
Had the phone since 6/4.
Anyone else having issues?
Are you using the AC charger ? I have two Evos and one of the chargers does what you are describing. The orange LED comes on and then goes off after a while and the phone stops charging. Does it on both phones, the other charger works fine with both usb cables.
Are you using the USB charger with a computer or laptop or plugging straight into the wall with an AC charger?
This does make a difference because if you are charging with a USB + laptop combination you could be suffering from the computer going to sleep and disabling the USB ports power to conserve laptop battery life. If you are having the issue when plugging into the wall, try plugging into a computer and selecting the "Charge Only" option when your USB debug comes up. Once it does this, allow it to charge for a period of time and then turn the phone off, switch to AC power plug and see what happens.
Perhaps you had some kind of over voltage spike on the charger through the AC plug. I could see it possibly tripping something in the phone to stop taking charge to protect the handset.
Also make sure if you do use a laptop, use a USB 2.0 or better port. More power and faster connection. Gotta love it.
Your charger may not be sourcing enough current anymore (for whatever reason). I have seen the exact same behavior with USB car chargers that were only sourcing 100-150mA.
Have you tried plugging the USB cable into a modern desktop PC? (Some laptops have reduced current ports, so a desktop is a safer bet)
Its definitely a current issue. I tried to charge my phone using my bluetooth headset's wall charger, but I got the behavior you are describing. The bluetooth headset's charger just doesnt put out enough current.
Are you using the charger that came with the phone? if so, you may want to exchange the charger...
im having the same problem when i connect it to my desktop, it sees it for about 2 secs n then disappears. My computer at work has no problem seeing the phone. i wonder if i need a driver or something for my usb ports, anyone have any ideas??
tarheelsmj12001 said:
im having the same problem when i connect it to my desktop, it sees it for about 2 secs n then disappears. My computer at work has no problem seeing the phone. i wonder if i need a driver or something for my usb ports, anyone have any ideas??
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Click to collapse
Probably not a driver issue, but that that rail from the power supply is either undervolted (say 4.6V instead of 5V), or can't provide enough current (amperage) or both. If I recall correctly, the Evo needs 5V @ 1A (+/- 3% tolerance).
Phone not charging
my phone has been charging fine since I got it... even been using the night desk clock app while sleeping at night for the alarm with it plugged in... everything was good...
With my phone about to die today, I plug it in to the wall charger, the led/batter indicator shows that it is charging... then POW.. it says I have a low battery and it needs to be plugged in... WTH??? it is plugged in!
The only thing I did today was flash the new boot.img for the cap fix over in Toast's thread...
Weird thing now is that I took my hero battery and put it in my EVO, plugged it into wall charger, and it stays charging... So, I put my EVO battery in my hero, plugged it in, and whola... it's now charging...
Please help as I am baffled.
MILH0U5E said:
The only thing I did today was flash the new boot.img for the cap fix over in Toast's thread...
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Click to collapse
that's your problem right there. that custom kernel is known to have charging issues.
I'm having the same issue with my car charger consistently. Plus my AC charger less consistently. For example, I'll go to bed and plug it in, the next morning I wake up and see the phone is at 80% charge and isn't charging. At some point over night, it gave up. This is with the stock charger too.
I picked up this cable at bestbuy last weekend before a camping trip to use in with my usb charger in the car. I got outside and noticed that while using it it showed up as an ac charger. So far, every PC ive used it on recognizes it as an AC adapter and therefor charges at full power. I had seen an earlier thread about a way to accomplish this, and i know it isnt done via a hack, but if you have 20 bucks, you have a solution to the problem.
http://www.bestbuy.com/site/olspage...p=&qp=&list=n&iht=y&usc=All+Categories&ks=960
Just noticed this should prob be put under accessories, but it didn't feel like the right spot for it. Mods, if it belongs there, please move it.
Thanks,
replaced link as links with prices from bestbuy do not seem to work. The item is the usb cable./
Added pics of a standard usb plug charge and the one i mentioned. You can see the grey rocketfish cord shows up as AC
linky no worky.
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Click to expand...
Click to collapse
wow, it doesn't work for me either, give me a sec and ill look it up another way. It is the Rocketfish usb charger with mini adapter.
There is no difference in charge time between computer usb and wall charger usb.
apristel said:
linky no worky.
Click to expand...
Click to collapse
Try it now, wouldn't let me copy pasta a link straight to the product. Click the link above, and its the second usb cable in the third row...can't miss it. Only downfall is its only 4 ft, but..
Bielinsk said:
There is no difference in charge time between computer usb and wall charger usb.
Click to expand...
Click to collapse
well please disregaurd my post, i was under the impression a standard usb cable plugged into the pc pulled 500mw and while in the ac charger, 1000mw or 1W.
i thought there was a difference in time, because it seems to take all day to charge from pc. charges alot faster from the ac adapter.
Bielinsk said:
There is no difference in charge time between computer usb and wall charger usb.
Click to expand...
Click to collapse
I hate to be the one to break this to you, but you're incorrect. First, a computer's USB port only has to put out 500 mA (that is the spec) - the HTC wall charger puts out 1 A (that's 1000 mA) (EDIT Thought I would add that these are both @ 5 V, so you have 2.5W or 5W of power...Power, current, and voltage are not interchangeable /BSEE lol). Second, the phone can tell when it is charging from the stock charger and when it is charging from a non-OEM 1000 mA charger or a 500 mA charger / USB port (it will say charging via AC or USB on the battery status page in the About Phone page of Settings).
So to the OP what you're saying is, this cable makes the phone think it's charging via it's AC charger? Have a picture? (not a screenshot, a picture of the phone screen showing AC while plugged into this charger).
TorxT3D said:
i thought there was a difference in time, because it seems to take all day to charge from pc. charges alot faster from the ac adapter.
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Click to collapse
It does, i was just being sarcastic. The above mentioned cable will allow you to pull full draw from your usb port on your pc.
phobos512 said:
I hate to be the one to break this to you, but you're incorrect. First, a computer's USB port only has to put out 500 mA (that is the spec) - the HTC wall charger puts out 1 A (that's 1000 mA). Second, the phone can tell when it is charging from the stock charger and when it is charging from a non-OEM 1000 mA charger or a 500 mA charger / USB port (it will say charging via AC or USB on the battery status page in the About Phone page of Settings).
So to the OP what you're saying is, this cable makes the phone think it's charging via it's AC charger? Have a picture? (not a screenshot, a picture of the phone screen showing AC while plugged into this charger).
Click to expand...
Click to collapse
Thanks for that, i try hard not to be a **** to people, but you handled it quite well. I will add a screenie to the front page shortly. I had made a custom cable myself and removed the two inner pins (data+ and -) to achieve this purpose. But keep in mind, when using this usb cable i posted, you can not sync to your pc-it will only charge-hence the fact my battery profile shows ac charger when using it. Give me a little to get to a camera to take a pic of the cable and a pic of the battery profile.
added pics to the first post
Computer USB can only output a certain amount of power, it isn't going to increase power with a cable.
I use Juice Plotter to see exactly what my battery life is, and how long it will take to charge. There is no difference in the charging time between USB and Plugged in.
Now on USB it will take longer because the screen is off and I am normally fustsing with it a lot, where when it is plugged in, I am not touching it at all and normally shut the screen off.
So even if a USB puts out 500mah and a wall charger puts 1000mah, I don't believe the phone has any type of switch to its micro USB to allow it to sense the mAh and adjust the charge. Else I would think your screen shots would show different numbers.
Bielinsk said:
Computer USB can only output a certain amount of power, it isn't going to increase power with a cable.
I use Juice Plotter to see exactly what my battery life is, and how long it will take to charge. There is no difference in the charging time between USB and Plugged in.
Now on USB it will take longer because the screen is off and I am normally fustsing with it a lot, where when it is plugged in, I am not touching it at all and normally shut the screen off.
So even if a USB puts out 500mah and a wall charger puts 1000mah, I don't believe the phone has any type of switch to its micro USB to allow it to sense the mAh and adjust the charge. Else I would think your screen shots would show different numbers.
Click to expand...
Click to collapse
Every windows mobile phone ive ever used could be manipulated to allow the usb port to pull 1000mw. It is a hack and there is work on finding it in the android system. I am hoping this cable bypasses that and if i can find any program that shows charge current, i can know for sure. Android os uses parameters to decide how much current to pull as does windows mobile.
Bielinsk said:
There is no difference in charge time between computer usb and wall charger usb.
Click to expand...
Click to collapse
Then why does my EVO take twice as long to charge when connected to my laptop, smart guy?
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Sent from my HTC EVO 4G using Tapatalk Pro.
Hi all, just came 3 days ago from an htc hd2, and so far I am more than happy with it.
I have only one complaint and maybe you guys will help me sharing your experience : I can't charge this phone in my car while using gps.
It seems that the power adapter is not powerful enough to charge the phone screen on.
The car charger has a 5v 1000ma output, more than the regular wall charger provided by Samsung and it was working well before with my HD2 so I have no clue about this problem.
Did you experience that issue too, else can you share what car charger do you use?
try to buy new standard car charger with micro plug.. 13 eur and you will be saved..
Sent from my GT-I9100 using XDA App
Charger doesn't matter unless the phone is dropping into USB charging mode - phone limits to around 600-650 mA by default.
Custom kernels can bump this limit up for I9100 users. I777 users are screwed - we've got a crippled charger chip.
I had the same problem, I used the samsung one, useless, so I used my iPad charger, which is 2A, and charges the iPad quick, still useless. We drove from Bathurst NSW, down to Melbourne, about 10 hour drive, plugged in all the way using GPS, and about an hour from home, the connect to charger warning came on!! So once I stopped GPS, it started taking charge. Looks like when the phone is in use, it draws more then it takes charge, plus I read somewhere on here the phone is limited on the charge it takes, so using the 2A does nothing different then the stock 500mA charger.
I always had this problem with my Nexus One, although they are different phones, the problem is the same, uses more power then it can recharge in USB mode.
After trying 3 or 4 different charges I remember that I found one ultra-cheap 'made in taiwan' from a street seller that worked very well.... so it's kind of a lucky shot!
good luck!
Im using a genuine Samsung SGS2 charger and I can charge and run Sygic just fine. I started my journey with 80% and 40mins later I was up to 91% when I stopped and got out. (not in aeroplane mode..)
Very interesting feedbacks... So that confirm that is clearly not a matter of output amperage power.
It is now the same problem on the galaxy tab 10.1, for quickly charge this tab you need the Samsung compatible usb adapter.
It can be likely with a tab bringing a proprietary plug, but I didn't thought it will be the same with a Samsung phone bringing a regular micro usb plug. Quite frustrating and disappointing!
I will search around a micro plug car charger as suggested by redzion, but actually I don't clearly see the difference with my usb charger + a micro usb cable.
Double post, sorry.
If I use the usb cable from my cd player I have the same problem but if I use the official Samsung car charger Ithe only problem I have is the phone getting stupid hot
Sent from my GT-I9100 using xda premium
Oh Samsung, when you will understand?!
Samsung DOES follow the USB charging standard - it goes to its highest current setting when a charger that follows the standard is connected.
Note that iPad/iPhone chargers do NOT follow the standard - Samsungs will treat these as USB hosts and limit to 450 mA instead of 600-650.
Modified kernels can increase both of these values on I9100s.
The only thing Samsung really did **** up is counting screen/CPU current usage against the charge current limits - that's just stupid.
So the charger has smarts. On the i9000 factory chargers, the data pins were bridged. Bridging these pins manually on a USB cable when connecting to a USB source (such as a PC) enabled full current charging. You can see this in Settings -> About; it will say either USB or AC charging.
Do you think this is the case with the i9100?
I don't condone testing this theory on your i9100. Increasing the max current via custom ROM may be a safer solution.
I had the same problem. Two things fixed it for me:
1) I bought this charger: Sony Ericsson AN300 Micro USB 10€
2) I am using a custom kernel now
Any charger that is rated at 1000mA or more (per port) will do just fine. The problem is the cable - you need a quality microUSB cable, or it won't provide all the juice you need. I had the same issue, and I swapped three chargers until I found the real culprit.
Try with the charger you have now and the mUSB cable that was in the phone box - it should work well with that one.
I just press the power button to turn the screen off. when i need the sat nav i press the power and it still tracks you so there is no delay. With the screen off it does charge.
same problem
Duffman19 said:
I just press the power button to turn the screen off. when i need the sat nav i press the power and it still tracks you so there is no delay. With the screen off it does charge.
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You are right, but even if it is better than nothing the charging time is still a big problem.
Yesterday I drove for at least 40mn phone off. Arrived to destination, I turn the device on: it charged only from 0 to 5%
I would like to test the mariusi theory concerning the Samsung micro usb cable, unfortunately on my SgsII box I just have a wall charger, no a microusb-usb cable.
Entropy512 said:
Samsung DOES follow the USB charging standard - it goes to its highest current setting when a charger that follows the standard is connected.
Click to expand...
Click to collapse
Is there a way to know before buying if the charger respect this charging standard?
I have some cheap usb chargers here and no one is a fast as the one provided by Samsung.
Entropy512 said:
The only thing Samsung really did **** up is counting screen/CPU current usage against the charge current limits - that's just stupid.
Click to expand...
Click to collapse
Maybe for safety purpose? Gps phones can become very hot behind the car glass.
Samsung are trying to "encourage" you to buy only their official accessories. To do this they've wired something differently in their chargers and cables. This "problem" exists on the Galaxy Tab too and can be solved with this adapter...
http://www.ebay.co.uk/itm/USB-car-w...ccessories&hash=item2c5c07736b#ht_3084wt_1163
It's cheap and turns a trickle charge into a full charge. I don't know the specifics of what they've done, but their USB charging just isn't the same as most others manufacturers.
Archer said:
It's cheap and turns a trickle charge into a full charge. I don't know the specifics of what they've done, but their USB charging just isn't the same as most others manufacturers.
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Great find.
Pretty sure it just bridges the data pins.
I am having trouble charging my tablet. When the tablet is on, I am unable to charge with either the POGO or USB cable. I have also tried other wall chargers for cell phones. I was not using any roms, but had tried out the ktmantra kernel. I have since wiped my tablet using a factory 4.2.2 image from google and am still having the charging problem.
The only way I am able to charge is by charging with the tablet off. It also takes ages to charge (12+hours). Any ideas on what could be causing this? When I plug the POGO cable in, it says it is charging, but the battery percentage continues to drop.
ab325 said:
I am having trouble charging my tablet. When the tablet is on, I am unable to charge with either the POGO or USB cable. I have also tried other wall chargers for cell phones. I was not using any roms, but had tried out the ktmantra kernel. I have since wiped my tablet using a factory 4.2.2 image from google and am still having the charging problem.
The only way I am able to charge is by charging with the tablet off. It also takes ages to charge (12+hours). Any ideas on what could be causing this? When I plug the POGO cable in, it says it is charging, but the battery percentage continues to drop.
Click to expand...
Click to collapse
I've readed some comment on another forum from an user that has the same proble, but for him it takes about 10h. Not sure what's wrong.
Are you not able to charge at all or just very slowly? I just noticed that my Nexus is charging very slowly with the Pogo cable I purchased. I may try going back to the usb cable to verify that the problem is with the cable and not with the tablet.
I was getting very slow charge rates with my usb charger. Around 12 hour charge times even when completely powered off. Anyway, my problem was with using a USB extension cable. Since I started plugging it directly into the wall I've been seeing charge times in the 5-6 hour range. My iPad never had an issue with it, but whatever! You might also try a different wall outlet.
Sent from my Nexus 10 using Tapatalk HD
I cant seem to solve this problem. I have tried using pogo and usb cables with two different chargers. I have also tried using different wall mounted phone chargers. I am not able to get any positive charge while the tablet is on. Using the battery monitor widget, I used to see a +1800 charge with the pogo, and a bit less with the usb cable. Now, the highest I get is -500.
I am only able to charge when the tablet is off, although very slowly. I had it charging all night, and it is now at 60%
When I plug the pogo cable in, the tablet will say it is charging, but it really isnt doing anything.
Any ideas?
ab325 said:
I cant seem to solve this problem. I have tried using pogo and usb cables with two different chargers. I have also tried using different wall mounted phone chargers. I am not able to get any positive charge while the tablet is on. Using the battery monitor widget, I used to see a +1800 charge with the pogo, and a bit less with the usb cable. Now, the highest I get is -500.
I am only able to charge when the tablet is off, although very slowly. I had it charging all night, and it is now at 60%
When I plug the pogo cable in, the tablet will say it is charging, but it really isnt doing anything.
Any ideas?
Click to expand...
Click to collapse
Recalibrate battery? It's probably not going to work though. RMA the tablet as a last resort.
Sent from my Galaxy Nexus using xda app-developers app
How can I recalibrate the battery?
Im in Europe until June, so Im assuming it wont be easy to RMA.
There is also a strange thing going on with the usb cable. My computer is unable to detect it as a storage device. When I plug the charger in, it will not show up as charging when the tablet is on. But, I am able to access the tablet via fastboot.
Where is that oficial pogo charger from samsgoogle? 4 month and counting... 2 Biggest companies în the world are unable to produce a simple cable... Hillarious
Sent from my Nexus 10 using xda app-developers app
The N10 charger is a 2 amp charger and most phone chargers are 1 amp chargers. The N10 will charge slowly with a 1 amp charger if it is powered off, however it needs 2 amps to run the N10 and charge at the same time. Also I have found that not all USB cables are created equal, you may want to try another usb cable. I do not know anything about the pogo chargers. Hope this helps.