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  1. Jon Jackson's Avatar
    This is the fastest charging device known to man kind.
    05-01-2014 04:53 PM
  2. mjcecil's Avatar
    Using a regular Micro USB cable it will charge slowly.

    Using the Samsung Wall-charging cable it'll charge from 10% to 100% in about 1.5 hours.
    Unless your cable is VERY poor (or damaged, which is common) , it won't matter whether you're using the shipped cable or an aftermarket usb3 or usb2 cable. The defining factor is nearly always the power source. I've used bricks that supply .6A up to 2.1A. The phone will never absorb 2100mA at charge time (according to Galaxy Charge Current), but it will well exceed 1000, and sometimes go up to 1800.

    As I said before, make sure your charger has more muscle.

    Think of it another way: It doesn't matter how big your pipe is if you're not putting any water in it.

    Battery is 2800mAh. In the best case, a <1000mA charger will cause the phone to take a 500mA charge current, which means that (2800mAh/500mA)=5.6hours. This would be with the phone off, and the charging producing zero loss (which is not possible). let's assume 80% charging efficiency and go with the burn rate for ULP mode, which is about 39mA/h. Start charging at 20%, which is when you get your first nag. Charge time would be (2800 mAh * 0.8) / (((500 mA) - (39 mA)) * 0.8) =6.1 hours. Now, contrast that with your 2.1A charger, which will get the job done, assuming a current limit at 1800mA, as I have observed, in (2800 mAh * 0.8) / (((1800 mA) - (39 mA)) * 0.8) =1.6 hours

    Mark
    bassplayrguy likes this.
    05-05-2014 03:10 PM
  3. Jon Jackson's Avatar
    Something is wrong with your phone then. Full charge in less than 90 minutes from 0-100.
    05-05-2014 03:12 PM
  4. kgilbertsen's Avatar
    UPDATE: Since I completely shut the phone down and re-started, the charge time has gotten much better. When using the laptop's USB it's charged as fast as the S3 would have been. Even using the Motorola car charger works great. And when I need it charged asap, the wall mount is definitely the way to go.

    Sent from my SM-G900P using AC Forums mobile app
    05-05-2014 04:23 PM
  5. Jon Jackson's Avatar
    For some reason the moderator likes taking down some of my comments. It may have sounded rude earlier when I said there's something wrong with your phone, but I think you may need to exchange it if it really is displaying the charging characteristics you are describing. Don't feel bad, I am on my second and I was reading a post earlier that someone is on their 6th phone and that one has a problem as well. I tell you this as there could be a window closing time wise in which you can simply exchange your phone.
    05-05-2014 04:28 PM
  6. eyecon82's Avatar
    Unless your cable is VERY poor (or damaged, which is common) , it won't matter whether you're using the shipped cable or an aftermarket usb3 or usb2 cable. The defining factor is nearly always the power source. I've used bricks that supply .6A up to 2.1A. The phone will never absorb 2100mA at charge time (according to Galaxy Charge Current), but it will well exceed 1000, and sometimes go up to 1800.

    As I said before, make sure your charger has more muscle.

    Think of it another way: It doesn't matter how big your pipe is if you're not putting any water in it.

    Battery is 2800mAh. In the best case, a <1000mA charger will cause the phone to take a 500mA charge current, which means that (2800mAh/500mA)=5.6hours. This would be with the phone off, and the charging producing zero loss (which is not possible). let's assume 80% charging efficiency and go with the burn rate for ULP mode, which is about 39mA/h. Start charging at 20%, which is when you get your first nag. Charge time would be (2800 mAh * 0.8) / (((500 mA) - (39 mA)) * 0.8) =6.1 hours. Now, contrast that with your 2.1A charger, which will get the job done, assuming a current limit at 1800mA, as I have observed, in (2800 mAh * 0.8) / (((1800 mA) - (39 mA)) * 0.8) =1.6 hours

    Mark
    Cables do matter. Different ones can only handle different currents.

    The thicker ones can handle more.

    Just give it a try yourself. Use some old thin cable and use the 2a transformer and the charging speed is limited

    -Sent from Tapatalk
    05-05-2014 05:22 PM
  7. mjcecil's Avatar
    Cables do matter. Different ones can only handle different currents.

    The thicker ones can handle more.

    Just give it a try yourself. Use some old thin cable and use the 2a transformer and the charging speed is limited

    -Sent from Tapatalk
    I agree that SOME cables cannot handle 2.1A charging current, but I submit that virtually every one *I* own can, and I'm, frankly, pretty fast and loose when it comes to choosing a cable when I need one for charging.

    BUT, just to be sure, I broke out my three-year-old Re-TraK self-retracting cable which uses extra thin (and I mean THIN, like 24 gauge or higher) wire. This particular unit has been abused, and has several knots in the cable, and won't retract any more. Plugged it into the Samsung charger, and right away I read 1800mA charge current, which is as high as I've ever seen, even with the Sammy charger and the shipped USB3 cable.

    Point is, I think it's WAY more likely that the charger block/car-plug is not powerful enough OR is not outputting its advertised current. (The other option is, of course, that the charging control in his phone is defective, which should be rectified). There was an article about a year ago, and if I can find it I'll repost, but the conclusion was basically that, after being bench-tested, none of the 3rd party chargers on the market can meet their rated output, and some fell FAR short, in the neighborhood of 50%.

    Use the factory charger and cable, and if your charge is slow, go get the phone swapped. If it's normal rate (~1% up per minute), and your other charger/cable is not doing the same, then kick your other charger to the curb.

    Mark
    05-06-2014 07:52 AM
  8. badwolf_12's Avatar
    Definitely take the popular advice of using the original 2.0A charger. I also find the USB 3.0 charges faster than even the original samsung Micro I had with my S3 (on the S5). My S5 charges faster and hold charge MUCH longer than any phone I've ever had. Hope you find a solution!

    Posted via Android Central App
    05-06-2014 08:14 AM
  9. Mike Evans6's Avatar
    my new s5 i have mixed problems from new, coming from iphone 4s i was very disappointed when i got home from the shop and put it on charge as it was only 50% charged , 10% took a few hours to charge and all weekend it carried on i mean it was awful, using a Samsung camera lead with a slower charge rate charged faster but after a while the original lead started to work a bit better, but back to square one again now it seems to work when i use a different wall outlet and boom it charges its really annoying because last night on 40% - went to bed with it on at 1am woke up at 8am and it was only on 93%, im guessing the lead rubbish its either here or there , don't really want to buy another samsung lead as its being a fail.
    05-07-2014 10:00 AM
  10. eyecon82's Avatar
    my new s5 i have mixed problems from new, coming from iphone 4s i was very disappointed when i got home from the shop and put it on charge as it was only 50% charged , 10% took a few hours to charge and all weekend it carried on i mean it was awful, using a Samsung camera lead with a slower charge rate charged faster but after a while the original lead started to work a bit better, but back to square one again now it seems to work when i use a different wall outlet and boom it charges its really annoying because last night on 40% - went to bed with it on at 1am woke up at 8am and it was only on 93%, im guessing the lead rubbish its either here or there , don't really want to buy another samsung lead as its being a fail.
    This is highly unusual. Since the s4, my phone charger from 2% to full in under 2 hours.

    -Sent from Tapatalk
    05-07-2014 07:54 PM
  11. Relgoshan's Avatar
    Some phones will do a jumper test to check if they are plugged into a branded charger. If the test returns an unexpected result the phone will limit its charging to prevent damage. I don't know if the S5 has this 'feature' but it would mean that even a PC with 1.5 amp rapid charge port will still be dog slow.
    05-07-2014 08:53 PM
  12. Mike Evans6's Avatar
    I am getting fedup im at work now and my phones on 5% so i plug it in to the wall with original charger and guess what its charged 4% in 28 mins. my girl friend has an s3 and its doing the same, is it something to do with Samsung operating system
    05-19-2014 10:25 AM
  13. JS_racer's Avatar
    I am getting fedup im at work now and my phones on 5% so i plug it in to the wall with original charger and guess what its charged 4% in 28 mins. my girl friend has an s3 and its doing the same, is it something to do with Samsung operating system
    Sorry, something on your end. Everyone else's charging flies with good stuff. About 1% per minute.
    Charger, cable, phone hardware, or something smoking your battery.
    05-19-2014 11:20 AM
  14. JS_racer's Avatar
    Some phones will do a jumper test to check if they are plugged into a branded charger. If the test returns an unexpected result the phone will limit its charging to prevent damage. I don't know if the S5 has this 'feature' but it would mean that even a PC with 1.5 amp rapid charge port will still be dog slow.
    I use a few aftermarket chargers and cables, they are capable of charging just as fast as the oe setup. 1% or so per minute. Not sure about any checks it does.
    Relgoshan likes this.
    05-19-2014 11:22 AM
  15. itsadogslife's Avatar
    Forgot to post an update. After a few more charges it seams to be fully charging in about 2hrs. No idea to why it was taking so long the 1st few charges.
    05-20-2014 08:18 PM
  16. AZgl1500's Avatar
    Nearly all USB ports on laptops/computers are limited to 500 mA.

    I have a bunch of older a/c adapters that came with older phones, or were bought off of eBay for $3 or so.
    None of those will charge any faster than the PC port will.

    However, if the OEM Samsung a/c adapter that came with my Galaxy S5 is used, the battery will charge to 98-100% in about 90 minutes.

    I just recently bought and installed a Wireless pad charger. The thing does work, but it is slow... but who cares if you are sleeping? The downside on the one I got is it runs HOT... no doubt because of its' cheap price, it is cheaply built w/o any margin of error for safety. It may not last very long, but it was only $18.99 and it is only needed about 3 times a week. I get 3 days use per charge on my S5 as I have most of the junk apps Turned Off. I also turn Off Data, sync, WiFi, bluetooth, GPS when they are not needed.

    I don't need for my phone to be talking to Google or anyone else when I am asleep.


    My Qi charger
    http://forums.androidcentral.com/sam...ml#post3660309
    05-20-2014 08:36 PM
  17. Jon Jackson's Avatar
    Actually, if this phone takes as long as it took to go from 20% to 45% using the USB 3 port last night, it'll be the FIRST phone I've owned that charged so slowly. All phones will charge quicker with the wall charger, but this was crazy slow. Since I had completely powered the phone down and re-started before throwing it on the wall charger, I'll try the USB next time it needs charging to see if the shut-down/re-start might have had some effect on the faster charge time.
    If your phone is doing what you describe, you need to exchange your phone. Using the USB 3.0 it comes with attached to a wall outlet, you will see 1.5 percent a minute.

    Posted via Android Central App
    05-20-2014 08:39 PM
  18. monicakm's Avatar
    Mine charges really fast using the USB 3 charger that came with the phone. I timed it last night. It went from 11% to 100 in just under 90 minutes. Phone was on but screen was off except to check the charging progress a few times.
    05-20-2014 10:31 PM
  19. scaramouch1's Avatar
    s5 2amp charges faster than my s3 1amp charger

    Posted via Android Central App
    05-21-2014 04:45 AM
  20. kgilbertsen's Avatar
    If your phone is doing what you describe, you need to exchange your phone. Using the USB 3.0 it comes with attached to a wall outlet, you will see 1.5 percent a minute.

    Posted via Android Central App
    The phone's been fine since I did a simple 'power off' and re-start weeks ago.
    05-21-2014 06:34 AM
  21. mcp6530's Avatar
    Mine charges fast at home with samsung provided charger and usb 3.0 cable. Question is, how do i match that in the car ?!?!?! The micro usb and basic car charger with 2.1a doesn't come close...it basically just keeps up with me when i'm using it for directions and mapping....I need something to charge it!

    thanks!
    05-21-2014 12:06 PM
  22. Nitin Chopra's Avatar
    i checked charging details of my device through this app :

    https://play.google.com/store/apps/d...chargingreport

    - - - Updated - - -

    i checked charging details of my device through this app :

    https://play.google.com/store/apps/details?id=com.playfulgeeks.chargingreport
    06-27-2014 11:22 PM
  23. Antit's Avatar
    Unless your cable is VERY poor (or damaged, which is common) , it won't matter whether you're using the shipped cable or an aftermarket usb3 or usb2 cable. The defining factor is nearly always the power source. I've used bricks that supply .6A up to 2.1A. The phone will never absorb 2100mA at charge time (according to Galaxy Charge Current), but it will well exceed 1000, and sometimes go up to 1800.

    As I said before, make sure your charger has more muscle.

    Think of it another way: It doesn't matter how big your pipe is if you're not putting any water in it.

    Battery is 2800mAh. In the best case, a <1000mA charger will cause the phone to take a 500mA charge current, which means that (2800mAh/500mA)=5.6hours. This would be with the phone off, and the charging producing zero loss (which is not possible). let's assume 80% charging efficiency and go with the burn rate for ULP mode, which is about 39mA/h. Start charging at 20%, which is when you get your first nag. Charge time would be (2800 mAh * 0.8) / (((500 mA) - (39 mA)) * 0.8) =6.1 hours. Now, contrast that with your 2.1A charger, which will get the job done, assuming a current limit at 1800mA, as I have observed, in (2800 mAh * 0.8) / (((1800 mA) - (39 mA)) * 0.8) =1.6 hours

    Mark
    I'm having the same problem. I have been using the same charger that came along with the phone. For the first month it was okay. Very fast charging. But after a while, it went downhill. Last night was charging it from 0% and it took more than 7hours to 100% and i turned of my phone the whole time it was charging. Btw, it was charged using the wall outlet, not a computer. Can somebody please help me?
    09-08-2014 08:27 AM
  24. punk999's Avatar
    Installing third party battery saving apps can do that, I have experienced it on a previous phone.
    09-08-2014 08:32 AM
  25. barto29's Avatar
    I was using my S4 charger last night took ages to charge I have S5 samsung using a samsung charger no lie I went to bed around 9:30-10pm and woke up about to 2am and it was on 29% checked my phone at 2am was at 90% then changed cords usine my mobile broadband one it charged a lot quicker than samsung one
    09-15-2014 12:18 PM
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