Charging anomaly

Discussion in 'Microsoft Surface Pro 3' started by Xiasi, Jul 14, 2014.

  1. Xiasi

    Xiasi New Member

    Joined:
    Jul 14, 2014
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    1
    I noticed today the power light on the side of the SP3 charging cable going on and off. This was the first time I noticed this behavior so I changed its position and tried a new power plug. I then unplugged my charging Samsung Note 3 and the light stayed on constantly. I am fine charging the phone on its dedicated USB plug but I wanted to confirm others are seeing this behavior in case I need a new power adapter.

    Anyone?
     
  2. ctitanic

    ctitanic Well-Known Member

    Joined:
    Nov 3, 2012
    Messages:
    2,194
    Likes Received:
    577
    Trophy Points:
    113
    Location:
    Hollywood, FL
    My Device:
    SPro3
    Ok. The power adapter seems not to be powerful enough to charge both. The Sammy Note 3 is a big phone that probably uses a lot of energy from the adapter.

    I don't know if there is any other members with the same phone here that can share their experience. I'm using the adapter to charge my Nokia 810 and SP3 without any problem.
     
    Last edited: Jul 14, 2014
  3. wynand32

    wynand32 Active Member

    Joined:
    Jun 24, 2014
    Messages:
    841
    Likes Received:
    174
    Trophy Points:
    43
    Location:
    Oak Park, CA
    My Device:
    SPro3
    Interesting. My understanding is that the USP port outputs 5V/1A maximum, and so I wouldn't think it would be affected by the device being charged. Put another way, I believe most/all modern smartphones pull 1A and so it shouldn't make a difference which one is connected, and any device designed to pull more (specifically, 2.1A) should still only pull 1A and thus essentially trickle charge.

    For what it's worth, I just tried my Nokia 925, Nexus 5, Dell Venue 8 Pro, and Nexus 10, and all charged (albeit, I'm guessing the tablets very slowly) without interrupting the supply to the Surface Pro 3.
     
  4. jbowden

    jbowden Member

    Joined:
    Mar 3, 2013
    Messages:
    75
    Likes Received:
    17
    Trophy Points:
    8
    I have experienced this trying to charge two iPads on the same USB device. What you are experiencing is overload condition.
     
  5. Sliksock

    Sliksock New Member

    Joined:
    Jul 4, 2014
    Messages:
    8
    Likes Received:
    0
    Trophy Points:
    1
    I've noticed that when I charge my SP3 and iPad 4 at the same time, the SP3 charges normally and the iPad charges very very slowly.
     
  6. malberttoo

    malberttoo Super Moderator Staff Member

    Joined:
    Feb 26, 2013
    Messages:
    2,255
    Likes Received:
    428
    Trophy Points:
    83
    Location:
    Alaska
    My Device:
    SPro3
    When you say "same time", do you mean the iPad plugged into the USB charging port on the SP3 power brick?
     
  7. Sliksock

    Sliksock New Member

    Joined:
    Jul 4, 2014
    Messages:
    8
    Likes Received:
    0
    Trophy Points:
    1
    yes
     
  8. malberttoo

    malberttoo Super Moderator Staff Member

    Joined:
    Feb 26, 2013
    Messages:
    2,255
    Likes Received:
    428
    Trophy Points:
    83
    Location:
    Alaska
    My Device:
    SPro3
    Ok well in that case, your iPad will ALWAYS charge more slowly than if you had used the included Apple power brick to charge it.

    The short and simple answer is, that the SP3 power brick USB port is probably delivering about 1/4 of the power of what your Apple iPad charger delivers. So even though your iPad may say "not charging" while plugged in, it IS charging, just at a much slower rate.
     
  9. Sliksock

    Sliksock New Member

    Joined:
    Jul 4, 2014
    Messages:
    8
    Likes Received:
    0
    Trophy Points:
    1
    Yes, I know all of that. I was simply adding my 2 cents, kind of a "me too" sort of thing. I will now refrain from doing so in the future, thank you.
     
  10. Xiasi

    Xiasi New Member

    Joined:
    Jul 14, 2014
    Messages:
    6
    Likes Received:
    0
    Trophy Points:
    1
    so the question remains... has anyone seen similar behavior with a phone like the note 3? i understand an ipad but i would think a note would draw less. small like a phone... power draw of an ipad... curse you phablet!!!!
     
  11. jnjroach

    jnjroach Administrator Staff Member

    Joined:
    Nov 9, 2012
    Messages:
    7,095
    Likes Received:
    1,724
    Trophy Points:
    113
    Location:
    Seattle, WA USA
    My Device:
    Surface Book
    I've successfully charged my Lumia 1520 off the SP3 Power Brick and have used it to Power USB Devices like Speakers, Hard Drives, DVD Drive and a USB Monitor...(not all at the same time).
     
  12. malberttoo

    malberttoo Super Moderator Staff Member

    Joined:
    Feb 26, 2013
    Messages:
    2,255
    Likes Received:
    428
    Trophy Points:
    83
    Location:
    Alaska
    My Device:
    SPro3
    Please do not refrain from doing so in the future, lol, I took your statement about the iPad charging slowly, as a question. My bad!
     

Share This Page

Search tags for this page
surface 3 charges slow
,
surface 3 charges slowly
,
surface 3 very slow at charging
,
surface 3 very slow chargin
,
surface book power brick
,
surface pro 3 charger brick
,
surface pro 3 charges slowly when using
,

surface pro 3 charging slowly

,
surface pro 3 charging very slowly
,
surface pro 3 need to unplug and plug power brick to charge