LENOVO GYG41/GYG51 NM-D131 REV:1.0 BATTERY PROBLEM

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • NConstantinou
    Badcaps Veteran
    • May 2017
    • 335
    • Cyprus
    #1

    LENOVO GYG41/GYG51 NM-D131 REV:1.0 BATTERY PROBLEM

    Dear all

    i have the above laptop which had problem with charging and was repaired. the laptop battery need to be replace also and i did but laptop did not power on with new battery.
    installing old battery back, power comes on.
    i noticed on battery connector instead of 3.3v on pins 3 and 4, i get 2.9-3.3v and is flactuating.
    can someone help!!!
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14240
      • Canada
      #2
      New battery is probably defective. Test another. The voltage will vary with logic level swings of high and low states.

        Comment

        • NConstantinou
          Badcaps Veteran
          • May 2017
          • 335
          • Cyprus
          #3
          i have tried a second brand new battery and i got the same result.
          i plugged the battery while the laptop was running with AC adaptor with lenovo utility recognized the battery BUT upon restart didn't power on.

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 14240
              • Canada
              #4
              Remove all power. Remove the battery. Measure each mosfet with resistance mode to check if there are any leaks.

                Comment

                • NConstantinou
                  Badcaps Veteran
                  • May 2017
                  • 335
                  • Cyprus
                  #5
                  By removing all power and measuring resistance locks ok..
                  what is noticed by applying power is the 3.3v on ic pu2001 is giving the problem. there i have the 5v output but 3.3v is flactuating. the ic is not shown as short. i must order it.

                    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
                    • 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
                      ISL88739AHRZ ISL88739 Laptop Battery Charger Datasheet
                      by Document Archive
                      The ISL88739 & ISL88739AHRZ are a highly versatile combo battery charger
                      configurable for operating as either a Hybrid Power Boost (HPB)
                      charger or a Narrow VDC (NVDC) charger, supporting 2-, 3-, or
                      4-cell batteries. Both configurations allow the battery to work with
                      the adapter together to supply the system load when it exceeds
                      the adapter capability, referred to as system Turbo mode. HPB
                      charger configuration reverse-boosts battery energy to the system
                      bus to help the adapter provide the system power in Turbo mode.
                      NVDC charger configuration...
                      11-05-2024, 03:28 PM
                    • ferah831208
                      Strange battery present behaviour in Lenovo Legion 5-15ARH05 mb model nm-d041
                      by ferah831208
                      Hello guys, i need help with this problem, I have a NM-D041 mobo, it came with low impedance in 3v linear regulator rail, the cause was a damaged EC controller ITE8227e-192. I ordered a new one and replaced it. This laptop have a different chip for keyboard management and it8227e pins for programming ITE chips are not accesible through keyboard interface, I flashed it using i2c interface pins with vertyanov programmer because laptop was dead and SPI flash didn't have power (only 3v EC) so it couldn't access firmware stored in SPI memory. I read SPI and extracted it8227 firmware from original BIOS...
                      03-18-2025, 01:18 AM
                    • Loading...
                    • No more items.
                    Working...