Hi,
My S2 phone GPS still drains battery when It is connected to USB car charger. This chargers works fine with my wife's iphone. Does S2 have special current and power requirements.
thanks
nihar
While the charger amperage could be your problem I believe it is more a cable issue. I am by far not the most knowledgeable but I believe the factory Samsung cables are grounded across a couple of the micro usb terminals to induce a "quick charge" when you phone is plugged into them. I believe a Samsung cable, or factory charger could solve you problem. I believe several manufactures do this to their cables. I use an ATT charger and don't have any problems. I believe I bought 2 of them re-manufactured for like 2 bucks.
Related
I bought a cigarette car adapter 12v with MiniUSb plug at the end (says for Motorola V3), but thought I could use it on my Hermes. It seems to charge (maybe a little slower charging that the one I had been using, which got destroyed), and is of good quality compared to my cheap ebay one that I had. It has smart charge protection in it. Someone had told me that any cigarette car charger meant for blackberrys, Motorolas etc that had a MiniUSb plug at the end could be used for the Hermes. Are they wrong?, Should I be worried about it hurting my device? The one I bought is through Cellgear.com,,sorry, the specs on the charger don't appear on the site.
If it is charging a little more slowly, then you are probably ok. Really, if we were all going by the book, we would check the charge rates and voltage outputs against the specs laid out by HTC.
One problem you may face is the the refusing to charge unless the device is switched off syndrome. This can happen with chargers not designed for the Hermes due to differences (it is thought) in the earthing connections. So although it may deliver a charge on the appropriate pins it can sometimes not allow the charging circuit to kick in due to the earth connection difference.
Just something to be aware of if it happens.
Mike
v3 usb charger
sure it will charge your phone, in fact I've found any mini usb will do the job, HOW-EVER if the phone is soft reset then the charger is pluged in it will charge ok, BUT once you "use" the phone it tends to stop charging..thats cause the real chargers are wired a little different.
my other half has a V3, my BT gps uses mini usb as does my BT headset, so I just use whatever is around and put up with the problem.
hope this helps
cheers
fadge
herm100
blacksatin
radio 1.49
+++
I've been using the following devices to charge my 8525.
My HTC supplied 8525 Charger.
My Motorola V3 Razr Charger
My Motorola V3 Razr Car Charger
My Nextel Blackberry Charger
My Nextel Blackberry Car Charger
Mini USB to PC (linux, win2k, winxp, vista, etc..)
Mini USB to laptop
Mini USB to CABLE BOX (DVR and Non-DVR)
Mini USB to Nintendo Wii
Mini USB to Playstation 2
Mini USB to Playstation 3
Mini USB to HP C6100 Series printer
All of them charge the phone with no issues.
I've found that Blackberry chargers work a bit better than Motorola chargers. I think the Moto chargers provide less amperage than the Blackberry ones. This means it may charge, but more slowly. If your battery is completely dead, the Moto charger may not be able to allow you to boot the Hermes. I think the Blackberry charger will.
The other thing is that cheap chargers, especially car chargers are pretty...cheap. I finally bought a name-brand charger and it's a lot more stable and better built that the generics. If you're gentle with your stuff it may not be a problem, but things sometime get thrown around in my car.
So I'm coming from the Apple world and I love having the Atrix because I can just use any microUSB cable that is around. I have a question about using different chargers though. The charger that can with the phone is 5.1V at 850mA but I have some extra Motorola ones that are lying around that are only 5.0V at 550mA. Will using the other charger degrade the performance of the battery over time or will it just take longer to get a full charge?
Spacebob11 said:
So I'm coming from the Apple world and I love having the Atrix because I can just use any microUSB cable that is around. I have a question about using different chargers though. The charger that can with the phone is 5.1V at 850mA but I have some extra Motorola ones that are lying around that are only 5.0V at 550mA. Will using the other charger degrade the performance of the battery over time or will it just take longer to get a full charge?
Click to expand...
Click to collapse
Well it'll definitely take longer to charge but *could* cause problems in the battery. My guess is that it will judging by how others have had an "on and off" problem with lower-amperage chargers. Instead of just charging slowly the charging sort of stops and starts randomly. Leads to the assumption that the transformer in the phone itself is having trouble accepting the power. Constantly connecting and disconnecting power when charging a battery can have consequences later on.
Spacebob11 said:
So I'm coming from the Apple world and I love having the Atrix because I can just use any microUSB cable that is around. I have a question about using different chargers though. The charger that can with the phone is 5.1V at 850mA but I have some extra Motorola ones that are lying around that are only 5.0V at 550mA. Will using the other charger degrade the performance of the battery over time or will it just take longer to get a full charge?
Click to expand...
Click to collapse
The Atrix is really picky with the chargers. I recommend to use only the original charger or the chargers that came with the docks. People described the weirdest things from touchscreen problems to not charging at all. Charging via USB cable doesn't work either (or it is very slow), neither on the computer nor in the car.
mgymnop said:
The Atrix is really picky with the chargers. I recommend to use only the original charger or the chargers that came with the docks. People described the weirdest things from touchscreen problems to not charging at all. Charging via USB cable doesn't work either (or it is very slow), neither on the computer nor in the car.
Click to expand...
Click to collapse
In my opinion....
I wouldn't go as far to say "use only original chargers/Motorola chargers". The underlying issue is just like hotleadsingerguy said, lower-amperage chargers.
If you avoid these chargers, you should be fine. My Motorola Atrix charging brick/USB cable are still in their original packaging, inside the phone's box, tucked away in a cabinet.
At home, I have a few Blackberry MicroUSB chargers which I've used on my Captivate (not picky), and now they charge the Atrix without problems. They are 5.0V/700mA chargers.
At work, I pieced together some chargers from Monoprice, buying USB (female plug) power adapter with long USB -> MicroUSB cables. The power adapter from Monoprice is 5.0V/1000mA, and I use these chargers on my Atrix without a problem...and that's also using like 15 feet long cables.
Monoprice Power Adapter
http://www.monoprice.com/products/p...=10420&cs_id=1042001&p_id=6171&seq=1&format=2
Blackberry Charger
http://www.amazon.com/BlackBerry-Or...0UGC/ref=sr_1_1?ie=UTF8&qid=1299396971&sr=8-1
I'd probably say your 550mA charger is not going to cut it, since I've seen some other threads mentioning charging problems with ~500mA chargers.
I have tried to charge my phone today with the charger AT&T sent me. My Portugal charger had a short in the cord so they sent me a generic charger. It has taken hours and hours to charge my phone! please help!
Sent from my Rooted Samsung Galaxy Note Running ICS 4.0.4
There is a known issue that the charger has to be a specific output voltage. Do a search and see what others have already stated. I'd try another charger. You can also try the trick of shorting the charge cable. That works, too. Also in the forum already. You just need to look and read my friend.
The "sorting the cable trick" is There is a thing with Samsung chargers, where when on a wall charger, the data pins are inactive, making it charge faster.
Generic chargers still use those pins, so the note thinks it's hooked to a.pc and just truckle charges.
take the chargers larger end, take the cover off and put a small bead of solder between the 2 center connectors of the usb board (not the actual plug, the board the plug is connected to) that should enable fast charging.
I have a Samsung SGS2. This charges fine off the original charger (650mA) , a new trent usb power pack (450mA), computer USB port (450mA) etc using a variety of cables.
I purchased a USB charger from a major retailer (B&Q) and found that when charging the phone a) had a totally unresponsive/dodgy touchscreen b) actually barely charged. Swapping the usb cable I was using for some cables seemed to fix the problem, but most didn't work.
However using the "failing" cable in a amazon kindle usb charger, and again the phone charged fine.
My conclusion is that the replacement usb chargers are faulty in some way - or at least not compatible with the SGS2. Possibly down to perhaps data pins not being shorted or similar.
Interestingly the exact same issue is observed on an HTC Sensation further suggesting it's the charger to blame (we have 2 of them - behave the same)
Can anyone explain/elaborate?
planetf1 said:
I have a Samsung SGS2. This charges fine off the original charger (650mA) , a new trent usb power pack (450mA), computer USB port (450mA) etc using a variety of cables.
I purchased a USB charger from a major retailer (B&Q) and found that when charging the phone a) had a totally unresponsive/dodgy touchscreen b) actually barely charged. Swapping the usb cable I was using for some cables seemed to fix the problem, but most didn't work.
However using the "failing" cable in a amazon kindle usb charger, and again the phone charged fine.
Click to expand...
Click to collapse
The unresponsive touchscreen you experience when using the charger is the result of the charger creating too much noise (ripple) which disturbs the electric field of the capacitive touch screen. Hence the digitizer is not able to work reliable anymore.
planetf1 said:
My conclusion is that the replacement usb chargers are faulty in some way - or at least not compatible with the SGS2. Possibly down to perhaps data pins not being shorted or similar.
Click to expand...
Click to collapse
Shorting the data pins will allow the phone to identify the charger as such, compared to a standard USB port. The phone will then draw more current then it does if it detects a 'regular' USB data port. From that point of view shorting the data pins should not have any influence. However if more current is drawn from the charger the ripple will increase and therefore the disturbance of the touch screen could aggravate.
In the end the problems you are experiencing are due to a charger of poor quality.
Certain power points seem to not charge but certain power points do the charging job perfectly?
what's a "power point"?
Glebun said:
what's a "power point"?
Click to expand...
Click to collapse
The place where you plug your charger in.
that's a faulty charger then
Define 'power point'. Are you talking about different Usb cables, different chargers, different wall sockets or jiggling the cable's connector to the phone?
In the latter: replace the cable and you may need to clean the contacts on the phone (eg with a hard toothbrush)
Sent from my GT-I9300 using xda premium
I think he means wall sockets
ysah i think he means wall sockets also at which it would still need to be a fault with his charger as its there that the voltage is converted to the voltage and ampherage that the phone uses.any differences in voltage that is given to the socket would most likely be on a very small scale
Ah I see. Does Sammy do one to one exchanges of the charger if its faulty?
Sent from my GT-I9300 using Tapatalk 2
Does anyone here use aftermarket chargers? Thinking of an innergie one.
Sent from my GT-I9300 using Tapatalk 2
I swapped.my cable, seems to charge better than the stock one..
Sent from my GT-I9300 using Tapatalk 2
I have the same problem, but with all cables
I just posted to an other threat about charging problems, so i will copy/paste it:
I have the problem that the phone only want to charge with soms chargers.
I can connect the phone to the original charger or to a pc or any device without problems, the phone will charge.
Even with an old blackberry charger (only 2 wires, no data) and car charger can i charge without any problem!
But when i connect the phone to the htc charger of my old phone, or to an iphone charger i see the phone is connected but it won't charge.
When i open batterymonitor i see that the charger is connected, but the phone still use his battery.
I tried this with all kinds of charders and all kinds of micro usb cables. Then i thaught there was maybe a resistor or chip or something build in some chargers, because i couls only charge with chargers with 2 wire cables.
Then i took a usb extension cable and i disconnected the two data wires so only the + and - 5V cables were left,
but still no success. If anybody knows where the problem is, please let my know
with kind regards! Martijn
discovered the problem
blaffer4 said:
I just posted to an other threat about charging problems, so i will copy/paste it:
I have the problem that the phone only want to charge with soms chargers.
I can connect the phone to the original charger or to a pc or any device without problems, the phone will charge.
Even with an old blackberry charger (only 2 wires, no data) and car charger can i charge without any problem!
But when i connect the phone to the htc charger of my old phone, or to an iphone charger i see the phone is connected but it won't charge.
When i open batterymonitor i see that the charger is connected, but the phone still use his battery.
I tried this with all kinds of charders and all kinds of micro usb cables. Then i thaught there was maybe a resistor or chip or something build in some chargers, because i couls only charge with chargers with 2 wire cables.
Then i took a usb extension cable and i disconnected the two data wires so only the + and - 5V cables were left,
but still no success. If anybody knows where the problem is, please let my know
with kind regards! Martijn
Click to expand...
Click to collapse
In the case there would be more people with this problem:
The problem is not caused by the charger but by the cable. If i use a cable that's a bit to small or to long i get problems. If you want a longer cable to charge your phone, you need a good and big one, not a cheap tiny cable. I only use good cables now and had no more problems for the last year or so...