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About Laptop Charger

Discussion in 'General Electronics Discussion' started by sitopons, Feb 13, 2010.

  1. sitopons

    sitopons

    3
    0
    Feb 13, 2010
    Hi, I hooked up 3 cell phone chargers in series as to produce me 19 V. but they still don't seem to charge my laptop...what could be the problem.

    Charges I used :

    2 Chargers at 5.6 V - 0.4 A
    1 Charger at 7.5 V - 300 mA

    Also what does it mean when your input says 1.5A example:

    I/P : 100- 240 ~ 1.5A 50- 60 Hz


    Thank you all for your answers

    :confused:
     
  2. Resqueline

    Resqueline

    2,848
    1
    Jul 31, 2009
    Cell phone chargers are too puny to even wake up the charging circuit of a laptop. You'll need jucier stuff.

    1.5A is the maximum current ever drawn from the mains. This will be at the lowest voltage (100V) in this case. At 220V it will draw less than half that current.
     
  3. conormacaoidh

    conormacaoidh

    2
    0
    Feb 14, 2010
    yeah you will need something more powerful!
     
  4. davenn

    davenn Moderator

    13,249
    1,746
    Sep 5, 2009
    As Res. has said way too puny.!! although you have got the correct voltage you haven't
    got anywhere near enough current. Most laptop powerpacks (plugpacks) that are anywhere from 10 - 20 volts all have current ratings in the 3.5 - 5 amp range.

    cheers
    Dave
     
  5. tam85

    tam85

    1
    0
    Mar 12, 2010
    hey thanks Resqueline for your great post..
     
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