Acer e5-553 battery not detected error

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • ahmarzo
    Senior Member
    • Mar 2015
    • 168
    • india
    #1

    Acer e5-553 battery not detected error

    Have laptop motherboard da0zabmb6e0 rev e showing battery not detected problem.while checking have
    Pin 3 - 3v
    Pin 4 - 3 v
    Pin 5 without battery 3 v with battery connected 0v
    Pin 6- 0.56v
    Pin 7&8 - 8.44v

    Have tried new battery and changed bq737
    When BATT Detect SW is pressed pin5 voltage goes to 0v
    Have traced pin 3 and pin 4 to the it8987e.




    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 13915
      • Canada
      #2
      Confirm that the series resistors @ PR56 and PR57 are ok = ~ 100 ohms each.

      Is the battery compatible with this unit? Have you tested with another known good battery?

        Comment

        • mcplslg123
          Badcaps Legend
          • Jun 2015
          • 7262
          • india
          #3
          BQ737
          01.Measure resistance between ACN/ACP & SRP/SRN pins (no power connected)
          02.ACOK/ACDET/REGN voltage
          03.Voltage on Source/Gate/Drain of dc-in fets.

            Comment

            • ahmarzo
              Senior Member
              • Mar 2015
              • 168
              • india
              #4
              pr56 and 56 are 100 ohms confirmed

              resistance between acn and acp 0 ohms and srp an srn is 1.8 mega ohms
              acok -0v,acdet is 2.8v, regn is 6v
              voltage on dc in source 19.4v,gate 8.3v and drain 19v

                Comment

                • mcplslg123
                  Badcaps Legend
                  • Jun 2015
                  • 7262
                  • india
                  #5
                  Resistance between SRP/SRN should be few ohms and not mega ohms. This indicates problem. Check the resistor connected to SRN/SRP pins and match with schematic. The battery CLR is Ok or burnt? Meter in diode mode-check continuity between SRN/SRP pins of charger IC to Battery CLR.

                    Comment

                    Previous template Next

                    Related Topics

                    Collapse
                    • 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
                    • Ado02
                      Acer SF314-41 battery not detected
                      by Ado02
                      Hi,

                      I am working on a Acer SF314-41 laptop where the battery is not detected.

                      The laptop works off the charger and the battery but it's not charging or showing the battery in Windows.

                      Charger IC: BQ24781

                      BATPRES - 0v With Battery and 3v Without when the charger is plugged in
                      SDA - 3.2v
                      SCL - 3.2v

                      Battery Connector:

                      BT+ 7.2V
                      BI 0v
                      BAT_IN#_1 0v
                      BATA_SCL_1 3.2v
                      BATA_SDA_1 3.2v

                      Update: Brand New Battery Installed Prior To Any Measurements Were Taken...
                      09-13-2023, 07:00 AM
                    • DenK
                      Acer Aspire 5 A514-55 - won't power on, no charger LED, battery not flat - usual suspects?
                      by DenK
                      Dear all, I am trying to troubleshoot an Acer Aspire 5 A514-55 that won't power on. I'll describe the symptoms and my findings so far, and I would like to seek guidance and suggestions on possible suspects in terms of cause/component failure. My initial thoughts are battery charger IC and/or ideal diode/MOSFET (that switches between incoming DC and battery power), but I could be totally wrong on this.
                      1) Laptop was working fine on battery, then user realised battery was running low. Plugged in AC adapter but noticed it was not charging (LED on AC adapter plug did not light). Eventually shut down
                      ...
                      12-06-2024, 01:29 AM
                    • mrkmpn
                      Lenovo Yoga C930-13IKB EYG70 NM-B741 Battery not detected.
                      by mrkmpn
                      Hello, I have a customer that brought this laptop in after replacing his battery. He said his original battery charge was not lasting long, and after replacing the battery with one purchased from iFixit, the charging worked for about 30 minutes and then stopped, and the battery is no longer detected by windows.

                      This laptop powers on when the AC adapter is connected, and my USB-C multimeter shows current being used with both ports, but the charging light does not come on, and in Windows the battery icon shows an X as if there is no battery present. If I disconnect the AC adapter,...
                      03-13-2024, 01:54 PM
                    • survivalbloke
                      Acer Predator Helios 300 - will not power up if battery is CONNECTED
                      by survivalbloke
                      This was a no power initially. Thanks to your help, I discovered it was the first mosfet, so I replaced. Now, the device will power up only if the battery is NOT connected. As soon as I connect the battery, it shuts off. If I connected the battery while the device is off, it simply will not respond to the power button. I replaced the battery, and while I suppose the new battery could be faulty, I'm assuming it is not. I'm having the same behavior with the new battery. I measure .2v at the charging coil. Manually applying power to the + and - at the battery header, there is no charging happening....
                      06-25-2025, 12:20 PM
                    • Loading...
                    • No more items.
                    Working...