DroidForums.net is the original Verizon Android Forum! Registered Users do not see these ads. Please Register - It's Free!
Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: Charging from USB Lighter Adapter

  1. Master Droid
    MdicnMan's Avatar
    Member #
    2709
    Join Date
    Nov 2009
    Location
    Midwest
    Posts
    401
    Liked
    5 times
    Phone
    Motrola Droid Razr Maxx HD
    #1

    Question Charging from USB Lighter Adapter

    I am looking for some insight here.

    I have been using a car lighter adapter with two USB ports for charging my previous phone / headset so rather than buying a car charger I just bought a 2nd USB Micro cable.

    The problem is that regardless of which cable I use, the original or the new one, it will charge from the wall wart and from the PC but not from the lighter to USB adapter. I have tried three different lighter plugs, HP, Belkin and a no name. All will charge anything I throw at them with a mini USB but not the Droid with the micro USB.

    Any thoughts or experience with a specific dual port USB lighter adapter? I really hate to give up charging my BT and phone at the same time.

    For now I guess I will have to use the standard car charger... it of course works fine.

    Thanks

    J
    Last edited by MdicnMan; 11-11-2009 at 07:05 AM. Reason: clarification
  2.  
     
     
     
  3. Banned
    apeshitninja's Avatar
    Member #
    2142
    Join Date
    Nov 2009
    Posts
    87
    Phone
    Driod
    #2
    I've got a single-port no name USB car adapter, it charges my Droid just fine using the included USB cable. Not sure it wouldn't work.
  4. Master Droid
    MdicnMan's Avatar
    Member #
    2709
    Join Date
    Nov 2009
    Location
    Midwest
    Posts
    401
    Liked
    5 times
    Phone
    Motrola Droid Razr Maxx HD
    #3
    I guess I will try a newer one and see what happens.
  5. Senior Droid
    Droider's Avatar
    Member #
    1088
    Join Date
    Nov 2009
    Posts
    106
    Phone
    Motorola Droid (Verizon)
    #4
    The Droid requires higher amperage than most USB chargeable devices. Perhaps those lighter adapters just aren't putting out enough amps. I tried a wall usb charger that only puts out 400mA and it was enough to turn the Droid on but not enough for it to indicate that it was charging. The wall charger that comes with the Droid puts out over 800mA.
  6. Master Droid
    MdicnMan's Avatar
    Member #
    2709
    Join Date
    Nov 2009
    Location
    Midwest
    Posts
    401
    Liked
    5 times
    Phone
    Motrola Droid Razr Maxx HD
    #5
    Quote Originally Posted by Droider View Post
    The Droid requires higher amperage than most USB chargeable devices. Perhaps those lighter adapters just aren't putting out enough amps. I tried a wall usb charger that only puts out 400mA and it was enough to turn the Droid on but not enough for it to indicate that it was charging. The wall charger that comes with the Droid puts out over 800mA.

    You had me excited there for a minute. Unfortunately I have a 5v 500ma wall wart that works and a 700ma car adapter that doesn't .. must be a pinout thing. Hopefully I can find one in town to try.
  7. Master Droid
    Narsil's Avatar
    Member #
    727
    Join Date
    Nov 2009
    Location
    Central Florida
    Posts
    511
    Liked
    190 times
    Phone
    2nd Generation Phabletastic!
    #6
    I'm using a Zagg 2 port USB adapter that plugs into the lighter port and it works just fine with the cable I bought from Verizon. I have no idea what the power rating is on it, though.
    ‘‘Sure... if you're rounding Pi down to three. Please don't make me add 'rounding Pi down to three' to your list of crimes.’’
    — Emperor Pius Dei I

    If violence wasn't your last resort, you failed to resort to enough of it.

    There are only 10 types of people in this world: those who understand binary and those who don't.
  8. Master Droid
    wsbsteven's Avatar
    Member #
    683
    Join Date
    Nov 2009
    Location
    youtube.com/wimervision
    Posts
    264
    Twitter
    wsbsteven
    Phone
    Bionic, Xoom
    #7
    The computer puts out 500mah on the usb and the adapter puts out 850mah. I would make sure you are somewhere in that range to ensure you get a charge.
  9. Droid
    stillz's Avatar
    Member #
    55111
    Join Date
    Apr 2010
    Posts
    34
    Phone
    None
    #8
    I have the same problem... the lighter adapter does not work.
  10. Master Droid
    jimnutt's Avatar
    Member #
    20685
    Join Date
    Dec 2009
    Location
    Morrisville, NY
    Posts
    300
    Liked
    1 times
    Phone
    Motorola Droid
    #9
    A lot of lighter adapters have unregulated outputs. In other words, the voltage on the output can vary as the current draw fluctuates. So a droid with a low battery might draw too much current and pull the voltage down on the adapter enough that it can't charge. And then, when the battery has a partial charge, the droid doesn't pull enough current to pull the voltage down to an acceptable value, which will cause the droid to do strange and amazing (and often undesirable) things. Basically always look for a charger that provides 5V regulated at at least 500 ma (the more ma, the better).
  11. Droid Sensei
    takeshi's Avatar
    Member #
    10236
    Join Date
    Nov 2009
    Posts
    4,600
    Liked
    1 times
    Phone
    Enter Current Phone Here
    #10
    Quote Originally Posted by MdicnMan View Post
    You had me excited there for a minute. Unfortunately I have a 5v 500ma wall wart that works and a 700ma car adapter that doesn't .. must be a pinout thing. Hopefully I can find one in town to try.
    700mA for each USB port or 700mA total (i.e. 350mA each)?
Page 1 of 2 12 LastLast

Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Charging times??
    By Leastbay in forum Android General Discussions
    Replies: 8
    Last Post: 01-11-2012, 02:44 PM
  2. Eris not charging?
    By mynameisjohn in forum HTC Droid Eris
    Replies: 11
    Last Post: 05-10-2010, 06:12 PM
  3. Car USB adapter No Charge
    By Danthok in forum Android Tech Support
    Replies: 16
    Last Post: 04-19-2010, 08:37 PM
  4. Charging Question
    By warrenianbarr in forum Android General Discussions
    Replies: 1
    Last Post: 11-09-2009, 11:59 AM
  5. Sounds when charging
    By dajakal in forum Android General Discussions
    Replies: 0
    Last Post: 11-08-2009, 03:08 PM

Search tags for this page

car charger pinout
,
droid battery pinout
,

droid charging cable schematic

,
droid pinout
,
droid usb charger schematic
,

droid x charger pinout

,

htc car charger pinout

,
motorola usb charger pinout
,
usb car charger pinout
,
usb phone charger pinout
Click on a term to search our site for related topics.

Tags for this Thread

Find us on Google+