OMEN DAG3BDMBAC0 can it work without battery?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • rookieme
    Badcaps Veteran
    • Oct 2014
    • 396
    • Greece

    #1

    OMEN DAG3BDMBAC0 can it work without battery?

    The issue is that after removing a dead battery pack, can the above notebook work with only power adapter?
    There is no schematic available so I use the LA-G07DP for the regulator SY8286B.
    Click image for larger version

Name:	sy8286b.jpg
Views:	148
Size:	54.1 KB
ID:	3166098


    At the 3V regulator the needed +3VPCU is 0,2V with 4,4V at the enable pin 11 [EN2].
    When I have the battery connected I get the 3,3V at +3VPCU.

    For the battery circuit I use schematic DAG35AMB8E0
    Click image for larger version

Name:	batt1.jpg
Views:	142
Size:	23.9 KB
ID:	3166100 Click image for larger version

Name:	batt2.jpg
Views:	139
Size:	30.1 KB
ID:	3166102
    The battery normally gives the +BAT_RTC and the second way is the +3VPCU through a diode [PD1010].
    There is no short but when removing the diode I have the +3VPCU voltage.
    With the diode if there is a battery providing the +BAT_RTC the +3VPCU works too but with no battery the +3VPCU drops low cause it somehow draws too much current trough the PD1010.
    The resistance after the diode is 1,4Kohm.
    What am I missing?
    Attached Files

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
  • sam_sam_sam
    NTE Electronics “NTE5251K” Zener Diode 9.1V @ 50W Do-5.5% Want to build a 9.1 output from a 9.6 lipo4 battery pack
    by sam_sam_sam
    I have bought this Zener Diode for this project what size and wattage resistor value do I need to use to get near 50 watt output
    I bought this from an eBay seller but unfortunately they only had one

    I bought three from Vetco Electronics these are Sylvania ECG5185A 9.1@10w A to Stud what size and watt resistor do I need to use to get near 10 watt output
    I bought three of from them to also make battery packs with this output power limit in mind

    I want to use this battery pack and turn it into a 9.1 output battery pack output to eliminate using 9 volt battery...
    04-23-2025, 05:50 AM
  • mkdj
    ASUS X571 no power : battery issue?
    by mkdj
    Hello everyone,

    Mark and model: ASUS X571
    Symptoms: not turning on. There is only the LED battery indicator working. The owner of the laptop told me this problem arrived one week after having changed the battery. He then managed to power on the laptop only once, and then it never powered on again.

    Tests already made:
    - Battery is charging when laptop is plugged in. The LED battery indicator turns white after a couple of hours of charge, indicating that battery is fully charged. However, laptop won't turn on anyway, with or without AC plug.
    - I have removed...
    07-14-2025, 09:16 AM
  • techfreak9356
    Vostro 3400 (LA-K033P) won't charge battery, everything else ok
    by techfreak9356
    I bought a Vostro 3400 motherboard (LA-K033P) to upgrade over my damaged Inspiron 5593 (LA-J091P) board. Everything else is ok except for the battery. This battery I am using now is already a replacement one since I disposed of the bloated original one. Back in the Inspiron 5593 motherboard, the battery charges fine and is identified just fine. However, with the upgraded motherboard, suddenly the replacement battery is labeled as "Not a dell battery". When I borrow a similar battery from my colleague (which did not have replacements yet), it is identified and charges just fine.
    ...
    09-14-2023, 11:10 PM
  • Document Archive
    HP OMEN OMEN by Desktop PC - 870-180na OMEN 870 i5-6400 Specification for Upgrade or Repair
    by Document Archive
    This specification for the HP OMEN OMEN by Desktop PC - 870-180na can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the OMEN OMEN by Desktop PC - 870-180na boardview and OMEN OMEN by Desktop PC - 870-180na schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties...
    09-12-2024, 03:44 PM
  • Loading...
  • No more items.
Working...