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  1. Thread Author  Thread Author    #1  
    bbmjack's Avatar

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    Default Will USB 3 charge the Galaxy S5 faster than USB 2?

    I bought usb 3.0 is it worth it or no
    I charge my phone with it I can't tell if it is faster than 2.0?

    Posted via Android Central App
  2. #2  

    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    Id say YES, mine charges really quickly, alot faster than my iPhone 5 did.
  3. #3  

    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    My phone charges much faster with USB 3.0. it's almost twice the speed of my old S4. If it doesn't you may not have a real USB 3.0 charging system. Many from Amazon and the like are fakes.

    Sent from my SAMSUNG-SM-G900A using AC Forums mobile app
  4. Thread Author  Thread Author    #4  
    bbmjack's Avatar

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    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    Mine is original 3.0 usb from samsung OEM I use it same s5 adapter
    And i see 2.0 faster than 3.0 do I need another adapter ?

    Posted via Android Central App
  5. #5  

    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    Seems like the adapter may be faulty. Surprising for an OEM product.

    Sent from my SAMSUNG-SM-G900A using AC Forums mobile app
  6. #6  

    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    My USB 3.0 cable definitely charges my phone faster than the regular cable. I have a regular cable at work that is plugged into the computer and it takes way longer to charge than my 3.0 and wall adapter that I have at home.
  7. #7  

    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    Quote Originally Posted by bbmjack View Post
    Mine is original 3.0 usb from samsung OEM I use it same s5 adapter
    And i see 2.0 faster than 3.0 do I need another adapter ?

    Posted via Android Central App
    Either your adapter isn't pushing enough power or it's faulty. Either way, you're going to need a new high(er)-output adapter. 2.4amps should be suffice.
    Moto Photon Q (work/power phone) / Sam S5 (new primary) / Sam Continuum (music)
  8. Thread Author  Thread Author    #8  
    bbmjack's Avatar

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    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    Don't know lol but I don't count that's why I see them same maybe because I use my phone while charging

    Posted via Android Central App
  9. #9  

    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    I use my phone during charging also, but it really shouldn't make a difference. I had a 3rd party system from Amazon and before it burnt up (smoke and all) it acted the same way. If it's faulty it will damage the phone.

    Sent from my SAMSUNG-SM-G900A using AC Forums mobile app
  10. Thread Author  Thread Author    #10  
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    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    I think that's jordan electricity which already dims light all time

    Posted via Android Central App
  11. Thread Author  Thread Author    #11  
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    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    But when battery drains it's slow to drain with 3.0 after charge

    Posted via Android Central App
  12. #12  

    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    I sent you a PM

    Sent from my SAMSUNG-SM-G900A using AC Forums mobile app
  13. #13  

    Default re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    2.0 and 3.0 will charge at the same speed.

    The reason it charges quicker than your S4 or your iPhone is because of the power adapter.

    3.0 has faster data transfer, not charging speed.

    Posted via Android Central App
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  14. #14  

    Default Re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    So can anyone explain the charging time when:
    • charging from usb3 port with usb2 cable [usb2 mode default]
    • charging from usb2 port with usb3 cable [usb2 mode default]
    • charging from usb3 port with usb3 cable [usb2 mode default]
    • charging from usb3 port with usb3 cable [usb3 mode which exits after 10min]

    by default when connecting to usb3 with genuine usb3 cable it goes to usb2 date transfer mode, but does it charge as fast as in usb3 mode?
    and does it charge faster than with usb2 cable or usb2 port?

    Nowhere I find a clear answer to this..
    Thanks in advance
  15. #15  

    Default Re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    Quote Originally Posted by Kleajmp View Post
    So can anyone explain the charging time when:
    • charging from usb3 port with usb2 cable [usb2 mode default]
    • charging from usb2 port with usb3 cable [usb2 mode default]
    • charging from usb3 port with usb3 cable [usb2 mode default]
    • charging from usb3 port with usb3 cable [usb3 mode which exits after 10min]

    by default when connecting to usb3 with genuine usb3 cable it goes to usb2 date transfer mode, but does it charge as fast as in usb3 mode?
    and does it charge faster than with usb2 cable or usb2 port?

    Nowhere I find a clear answer to this..
    Thanks in advance
    From an electrical standpoint.

    USB ports up to 2.0 deliver 5 volts at 0.5 Amps (2.5 Watts).

    USB 3.0 ports deliver 5 volts and 0.9 Amps (4.5 Watts)

    Samsung OEM charger is 5.2 volts and 2.4 Amps (12.5 Watts)

    So a USB 2.0 port will be about 4 times as long to charge your S5. A USB 3.0 port will be 2.7x as slow just because they do not provide as many watts of charging power.
  16. #16  

    Default Re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    From an electrical standpoint.

    USB ports up to 2.0 deliver 5 volts at 0.5 Amps (2.5 Watts).

    USB 3.0 ports deliver 5 volts and 0.9 Amps (4.5 Watts)

    Samsung OEM charger is 5.2 volts and 2.4 Amps (12.5 Watts)

    So a USB 2.0 port will be about 4 times as long to charge your S5. A USB 3.0 port will be a little over twice as long just because they do not provide as many watts of charging power.

    Now the question I have is does a normal microUSB cable in a 12 watt charger (like my car charger) charge the phone as fast as the wall charger that comes with the S5?
  17. #17  

    Default Re: Will USB 3 charge the Galaxy S5 faster than USB 2?

    Ive done some testing.
    So far I was able to charge my s5 with a good quality non samsung 2amp ac charger with a good cable at about 1.7 or 1.8 amps. The same as the 2 amp samsung charger with or without its oem cable.
    USB 3.0 is faster at transferring DATA not power. I have a little usb amp/volt meter to check the numbers. If fact in some cases the oem cable can charge slower than aftermarket.
    I have a dell optiplex 7010 that can put out 1.5 amps to its usb 2 and 3 ports and my meter shows that using the oem cable it is limiting current to < .5A because it is using the other wires to allow data connection but if I use a Charging only cable the s5 can charge from the PC port at > 1 Amp.
    So basically everything mentioned here is dependent on nearly every part you are using. If you really want to know if you are charging you need to get a $10 usb meter. Its the only way to be sure. And you need to try every combination of parts. It can be very hard to tell at what rate your phone is charging.
    Generally charging from AC is faster but its very dependent on what charger or port and cable. And this shows that many PC's with the right cable can charge much faster than the default .5 Amps.

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