Is anyone else having problems charging their S4? I was using a 5V/1A car charger while on a trip and the phone was actually losing power faster than it was charging. I did have Waze open and was playing music using local files with Google Play, but my S3 was able to handle that fine and still charge in the car.
Additionally, I left it plugged in overnight for 6+ hours using the AC plug that came with the phone and it didn't charge up all the way.
Is there something wrong with my phone?
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I had the same problem in my car. I had a cheap car charger that was lower amperage than the standard wall charger. This phone is designed to charge with a 5V 2Amp charger. Your screen draws more power than your s3 so 1amp might be it's burn rate with screen on, GPS, music, etc.
I got a 2amp car charger from thinkgeek that works brilliantly. It was a little pricey. Amazon has one for 6 bucks. I highly recommend buying a coiled micro USB cable so it is more manageable.
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Is it safe to use a 2.1A car charger?
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spectrumfox said:
Is it safe to use a 2.1A car charger?
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Should be as safe as using the stock charger. Even if it was a lot more powerful than the stock charger it would still be fine because the phone itself is what regulates how much power to send the battery.
Related
So the wall sends out 1000 ma and USB sends 500 ma.
What about webtop? Anyone know?
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Now that would be interesting. 500,000 volts from a USB. Needs a flux capacitor.
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ekerbuddyeker said:
Now that would be interesting. 500 volts from a USB.
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Ok obviously I have some of my terms mixed up. Care to correct me rather than make a smart ass comment? Actually ill do it myself brb
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Edited and fixed. It was mA (mila amps)
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http://www.aftermarketcellular.com/ic/89459N.html
89459N kit includes Motorola Atrix 4G HD multimedia dock, remote control (battery included), 18W AC wall charger and quickstart guide
gnahc79 said:
http://www.aftermarketcellular.com/ic/89459N.html
89459N kit includes Motorola Atrix 4G HD multimedia dock, remote control (battery included), 18W AC wall charger and quickstart guide
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Hey thanks! I already have a dock though.
In my post I asked what the charging output was for the HD dock.
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USB 2 is 500ma, USB 3 is 900ma, Moto charger has 850ma rating on it. If you have a USB 3.0 port you can use you'll get enough power from that. I use the 3.0 on my laptop at work, and it charges fine.
How can we find out the charging output of the multimedia dock?
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Do the differences matter much? Just one takes longer to charge then the other?
seh6183 said:
So the wall sends out 1000 ma and USB sends 500 ma.
What about webtop? Anyone know?
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Actually my wall charger is 800ma.
J-man67 said:
Do the differences matter much? Just one takes longer to charge then the other?
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Yes one charges faster that's it. For heavy users like myself, getting the most juice as conveniently as possible is a plus.
I also like to charge my phone on the dock and keep my usb cable in the truck for playing music. I only want to do so if I can find out what the dock is putting out. When I need juice I need it as quickly as possible.
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seh6183 said:
Yes one charges faster that's it. For heavy users like myself, getting the most juice as conveniently as possible is a plus.
I also like to charge my phone on the dock and keep my usb cable in the truck for playing music. I only want to do so if I can find out what the dock is putting out. When I need juice I need it as quickly as possible.
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If your only getting 500mA your phone will take hours to charge and then only if your not running wifi, Bluetooth or gps. Use any of those and plugging it in will just prolong discharge but not actually charge it. With just GPS running I pull over 700mA. I'm really tempted to put a female end with resistors (to fool the phone into thinking it’s on AC power or it'll never pull more than 500mA) on a split wire usb mini cable for charging at work.
I finally used my brain and checked my chargers. Here's the specs
Standard charger: 850mA
HD multimedia dock: 1.2A
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seh6183 said:
I finally used my brain
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Shhh, don't tell anyone.
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I think the dock is rated higher to power the usb ports. I bet it still only feeds 500 to the phone for charging. Looks like its back to the cable for charging!
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my wall charger is 850ma...
seems like till now there's no way to disable this
Just an update. I think the dock charges as fast as the wall power adapter. Almost certain.
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seh6183 said:
I finally used my brain and checked my chargers. Here's the specs
Standard charger: 850mA
HD multimedia dock: 1.2A
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This is interesting as I have issues getting my Atrix to charge in the car dock. I have the ATT boxed car dock with ecomoto dual USB. It simply will not charge in the dock. Connected direct to the car charger and it's super fast to charge. Maybe the ecomoto isn't capable of charging the phone in the car dock.
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Is using a different wall charger harmful? I was using my old palm pre wall charger for the first few days and it is rated at 1000mA.
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Sorry if this sounds amateur, but I was wondering if I would be able to use my cell phone charger with the Nexus 7 without it causing damage. Or is the reverse true too?
The output on the Nexus 7 charger is : 5V - 2A
The output on the One S charger is: 5V - 1A
The input on the Nexus 7 charger is 100mA higher.
Now technically this means if I use the Cell charger the tablet would take longer to charge right?
But what if I use the tablet charger for my cell phone? Would it damage my phone?
I'm only wondering because I don't want to have too many cables cluttering my workspace.
Thanks in advance.
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You're right about the charge time. And yes you can use it on your phone. I have a 2A charger for my g2x that's blazing fast.
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It charges super slow on my GNex charger. 10% in an hour
you can use the nexus7 on your phone it will work as a rapid charge, i wouldnt make a habit of it...
Don't quote me on this, but using the 2A charger for your phone should work just fine, as it should have an internal limiter that prevents too much current from being passed through the device, damaging it. I have done that before (with a different charger) with success, so it should be just fine. Also, the N7 *should* charge on the 1A charger, just a LOT slower, and may only charge if you turn it off.
Thanks for all the quick responses guys. I just wanted to make sure I don't do any damage to them.
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Anybody else seeing that even if your phone is plugged in it will continue discharging if you are using it?
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Isn't this always the case? My understanding is that the phone is always powered by the battery and not the plug. If your using the phone and using more power than the charger is supplying then the phone will discharge accordingly. Could be wrong but that's always how I thought it worked.
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This is the first phone I've had that discharges when being used and pluhed in....
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What's your battery life like? You may have some issues with software maxing out the CPU.
Anyway, the One X battery can run out when using navigation software and on car charger (maybe 0.5A).
Gunner86 said:
Anybody else seeing that even if your phone is plugged in it will continue discharging if you are using it?
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What are you using the phone for when it is discharging? Also, are you using stock AC charger or car charger?
Battery life seems fine, i am basically just browsing the web and watching a few yoitube video's, i am usin a 2A car charger.
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Gunner86 said:
Battery life seems fine, i am basically just browsing the web and watching a few yoitube video's, i am usin a 2A car charger.
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Can you please try and replicate the same problem with the stock charger? 2A seems fine but just to be sure..
Yeah i will try when i get home from work.
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I ran into that when I was using a under rated charger or just plugged into a USB port. Official chargers (or equivalent) didn't have that problem it was slower if I was constantly using it while charging, but it did it.
Playing games, navigate, heavy tasks - looses percentage.
Browsing,messaging, mailing,etc - The battery charges.
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Mobile charging.
t0mke11y said:
Isn't this always the case? My understanding is that the phone is always powered by the battery and not the plug. If your using the phone and using more power than the charger is supplying then the phone will discharge accordingly. Could be wrong but that's always how I thought it worked.
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I believe this is correct. Whenever I used my Lumia 920 for gps+music on a cheap car charger, it would always discharge faster than it would charge. This is because 1) 12V-car/usb chargers charge at a slower rate than AC chargers and 2) some cheaper car chargers output even lower than normal USB charging rates.
Shopping for a new mobile/car charging solution for my Asus TF300T (gonna use for GPS.. tethered to my HTC One) and my HTC One, i ended up getting this multi-use charger. Initially, i was going to get this high power charger just for usb (which is the first charger on amazon i've seen to output 18 W / 3.6 A), but wanted a more unified solution that I could plug both my One and TF300t into. Because I'll be using the tablet for GPS+music, I can tuck the phone away charging at a tolerable rate. Oh, a direct 12v car charger to HTC One will charge the fastest if that's what you're looking for.
Can anyone help me understand why any other charger I use on my G2 charges very slowly (and tells me so)? I will get a wireless charger soon and keep the regular one in my work bag, but just trying to understand why anything but the one that came with the phone is such a dog even when it is plugged into the wall. thanks
The G2 charger outputs at a rate of 5v at 1.8amps. any charger that has a lower amp out will charger the phone at a slower rate and bring up the slow charge warning on the phone.
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Kas206 said:
The G2 charger outputs at a rate of 5v at 1.8amps. any charger that has a lower amp out will charger the phone at a slower rate and bring up the slow charge warning on the phone.
Sent from my LG-D802 using XDA Premium 4 mobile app
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And you need a USB 3.0 cable with a charger having 1.8+ amp output. I tried using my ASUS tablet charger which has an output of 2amps and it still says slow charging. I also bought an aftermarket USB 2.0 cable and used the OEM LG charger and it will show slow charging also.
mouf32 said:
And you need a USB 3.0 cable with a charger having 1.8+ amp output. I tried using my ASUS tablet charger which has an output of 2amps and it still says slow charging. I also bought an aftermarket USB 2.0 cable and used the OEM LG charger and it will show slow charging also.
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Just picked up this for $8 and it doesnt show slow charging.
http://www.amazon.com/dp/B005OD89MY/ref=pe_385040_30332200_pe_309540_26725410_item
MoNsTeReNeRgY22 said:
Just picked up this for $8 and it doesnt show slow charging.
http://www.amazon.com/dp/B005OD89MY/ref=pe_385040_30332200_pe_309540_26725410_item
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Have you compared charging times between this and the OEM? The description seems to make it s match.
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My stock Samsung 2 amp charger and cable works great. No slow charging.
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My Galaxy S4 charges.... terribly directly connected through USB into my PC in both USB 2.0 and USB 3.0 inputs.
Am I doing something wrong, is there a way to boost the charge you get from a USB PC input?
Thanks!
Most USB ports on a computer are only 0.5 to 0.75 amps. To charge your GS4 you really need about 1.0 amps, the charger that came with your GS4 is 2.0 amps. So no you can't get a better charge from your computer.
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Check the logo on the USB ports. Look for one with a lightning bolt. My laptop has specified ports that have higher output for charging.
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Some laptops from MSI are supported by their utility called Super Charger. This boosts the power output but also removes connectivity (I believe). So you won't be able to connect your phone and transfer data.
There maybe be a utility that supports your laptop for boosting charging. Best thing to do is Google around for some programs.
If your laptop is old you're probably out of luck.
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There is a cord that is used for external hard drives on laptops it uses two usb ports but plugs into one drive doubling the power. Just a thought. Only thing is they are usually mini usb not micro but an adapter should do it
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Thanks all! I also have another problem!
I read your answers, so I decided to get a 3 amp car charger for my S4! If the original S4 wall charger is 2 Amps, then a 3 amp car charger sounds good, right?
Unfortunately, my phone gains no charge from it in both of my cards, my phones battery just dies slower when plugged into the car.
Any tips? Thanks!
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Most car chargers lie about their ratings so that could be one problem, the other, is most phones see car chargers as a usb port charger instead of an ac charger so the rate of charge is automatically reduced to usb charging. Somewhere on here was a thread on how to modify a car charger so the phone would see it as an ac wall charger and allow it full output. I believe you have to open up the charger and jump a wire over. Search on here or google it and you should find it.
Could be a lot of things. But remember you phone will only allow its self to charge at a certain rate. Thus, purchasing high amperage chargers will provide no benfit.
High amperage chargers are more for tablets that require more power for their larger batteries.
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Mine does that. I have to reboot it while it's plugged up to my car charger. Thought my charger was bad after taking the MJA update. Still looking for a fix....
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