Laptop would not turn on after dishcharging

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • pratyush
    Senior Member
    • Sep 2018
    • 69
    • India

    #1

    Laptop would not turn on after dishcharging

    lenovo B40-30 MBD LA-B102P
    I am facing a strange problem, this system is not turning on when it get complete dishcharge, neither with battery nor with plugin adopter, AND It also not turns on when I make it shut down and try to on after few hours. And when I unplug battery and again plugged in it will work normally battery also getting charge, and battery percentage is same as it was present during shutdown time
    In case of without battery it will work normally and turns on every time.
    what will be possible cause?
    I checked physically there will be no any corrosion in battery section.
    voltage on battery connector
    @ pin 1,2 is 13.2v
    @pin3 is 3.3v (EC_SMB_CK1)
    @pin4 is 3.3v (EC_SMB_DA1)
    @pin5 is 1.95v
    THERE WILL BE NO ANY CHANGES IN THESE VOLTAGES WHEN I plugg charger.
    I replaced battery and adopter too.
    Attached Files
    Last edited by pratyush; 08-29-2020, 04:50 AM.
  • ErciaR
    Member
    • Aug 2020
    • 12
    • Sri Lanka

    #2
    Re: Laptop would not turn on after dishcharging

    I have tried this method..It worked fine for my Toshiba satellite laptop sometimes ago..Check if it would be helpful for you



    Disconnect the AC adapter and remove the battery.
    Hold down the power button for thirty seconds to drain any residual power in the laptop.
    Without replacing the battery, plug the AC adapter back into the laptop.
    Press the power button to turn on your laptop.
    If the laptop powers on, shut down the laptop normally.
    When the laptop is powered down, put the battery back in the laptop.
    Power on the computer, and verify that it boots correctly.

    Comment

    • mcplslg123
      Badcaps Legend
      • Jun 2015
      • 7262
      • india

      #3
      Re: Laptop would not turn on after dishcharging

      Try replacing Charging IC/SIO or probe them deeply.

      Comment

      • Duranitron
        Badcaps Veteran
        • Jul 2014
        • 544
        • Philippines

        #4
        Re: Laptop would not turn on after dishcharging

        make sure your using the specified adapter charger..possible your using low wattage adapter..
        Never stop LEARNING because life never stops TEACHING!

        Comment

        • vettouch
          Senior Member
          • Sep 2020
          • 68
          • Nigeria

          #5
          Re: Laptop would not turn on after dishcharging

          Check if there are some hot areas on the laptop casing. In most cases, some components get hot and make the laptop to malfunction. Dust, bad capacitors and the likes can cause this kind of issue.

          Comment

          Related Topics

          Collapse

          • RdeveLabs
            MSI GF63 THIN 11UCX (MS-16R6) LAPTOP WON'T TURN ON AFTER RESTARTING
            by RdeveLabs
            To all the members here...

            Let me tell you a little bit about what happened to my laptop (MSI GF63 THIN 11UCX model: MS-16R6) that “maybe” you know how to solve this problem.

            So before this problem happened, my laptop was running smoothly. When I wanted to restart my laptop, it looked fine at first. But after I waited for this restart process to take a long time, until finally I panicked (because the restart process did not finish plus the laptop screen only showed a black screen), I immediately pressed and held the power button to force the laptop to turn off. But...
            05-05-2025, 04:59 AM
          • serious_electron
            Strange! Acer laptop not powering on but charging the battery (orange light on when charger and battery plugged in).
            by serious_electron
            Hello Everyone!

            I have an Acer Aspire A315-42 laptop. I generally leave it on for long time by closing down its lid (so it enters the sleep mode). Recently, it rained quite heavily in out area. And the humidity and moisture seem to be high. So one late evening, after I opened the lid and turned on the laptop, it did power on as the blue light turned on but after it booted to the desktop screen, just 5-10 seconds after both the screen and blue light went out and laptop shut down (the blue power light turned orange). And after 2-4 seconds that orange light went off and the laptop died.
            ...
            06-28-2025, 02:57 PM
          • Bowline
            Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?
            by Bowline
            My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?

            Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?

            My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
            The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
            I have tried multiple different Dell power adapters. My Dell...
            06-11-2025, 10:13 AM
          • ahmarzo
            Acer TMX314-51 laptop battery problem
            by ahmarzo
            I have acer laptop tmx314-51 with part no 6050A3020501.
            The laptop is working fine on adapter and battery is also charging and when adapter is disconnected in on state the laptop gives backup on battery and gives good backup.
            But when laptop is powered on through battery only the laptop does not power on and there is 0 voltage on battery connector.
            I have not not tried another battery as it is not available locally could this be a battery problem.have checked discharging mosfet and there is no shorting to ground on any pin of battery connector.
            The schematic is not available...
            04-11-2025, 09:14 AM
          • Document Archive
            ISL6257HRZ ISL6257HRZ-T Laptop Battery Charger Datasheet
            by Document Archive
            ISL6257HRZ ISL6257HRZ-T Laptop Battery Charger Datasheet

            Highly Integrated Narrow VDC Battery Charger for Notebook Computers

            The ISL6257HRZ ISL6257HRZ-T is a highly integrated battery charger controller
            for Li-Ion/Li-Ion polymer batteries. ISL6257 is designed for
            Narrow VDC applications where the system power source is
            either the battery pack or the regulated output of the charger.
            This makes the max voltage to the system equal to the max
            battery voltage instead of the max adapter voltage. Operating
            at lower system voltage can improve...
            11-05-2024, 04:43 PM
          • Loading...
          • No more items.
          Working...