820-00165 - Battery problem

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Eleways
    Senior Member
    • Oct 2014
    • 62
    • Italy

    #1

    820-00165 - Battery problem

    Hi

    I've a problem on a MacBook Air 13" 2014, motherboard 820-00165-a.

    It works fine but don't detect the battery.
    It works with battery without power supply plugged but the system don't detect battery (the battery icon had a X inside). If I connect power the magsafe led start green and become amber. the battery will charge and work.

    We try to replace ISL and check resistor around, without success.

    Any suggestion?

    Thanks and best regards

    Luke
  • piernov
    Super Moderator
    • Jan 2016
    • 4435
    • France

    #2
    Re: 820-00165 - Battery problem

    https://www.badcaps.net/forum/showthread.php?t=90356
    2.2.1. Battery not detected
    Issue on charging circuit SMBUS.
    Check voltage and diode mode to ground on charging circuit SMBUS SDA and SCL lines
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

    Comment

    Related Topics

    Collapse

    • 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
    • NConstantinou
      LENOVO YOGA 7 14ITLS 15 BATTERY REPLACEMENT PROBLEM
      by NConstantinou
      Dear all,

      i have the above laptop which had a problem with battery. i replaced it with a compatible one..
      the laptop DOES NOT POWER ON..
      with it old battery it does power on.
      i left the new battery disconnected and i powered on the laptop and i reconnected battery while laptop was on. it shows that the battery is charging.
      when i shutdown the laptop does not power on.

      does anyone have any solution!
      when is not power on the usb c voltage tester shows 5v 1.3A

      when i disconnect battery and power on and then connect battery the tester...
      12-10-2024, 04:52 AM
    • mferna14
      MacBook Air A2681 battery problem after Screen Replacement
      by mferna14
      Hi, my dear friends., Maybe this might be a stupid question or something I missed or do not know. I have 2 MacBook Air A2681 (Indentical color & EMC #), both LCD screens broken. Before ordering the LCD Screens I confirmed both worked with their respective batteries & AC Adapters, & they did 100%. The LCD Screens came in today & I replaced LCD for the 1st A2681. (Removed Battery Terminal cable for both Laptops before installation of LCDs). Perfect Screen & Booted up fine. But it did not work with battery. I checked the battery connector & it was seated in well/perfectly....
      12-06-2024, 08:10 PM
    • String2016
      ACER V3-472 Battery charging problem
      by String2016
      I have this acer V3-472 laptop with board id DA0ZQ0MB6E0 REV:E , With battery charging problem, At first I thought it was a bad battery so, I bought new battery but the problem still the same,cannot turn on with battery only and when battery and charger plugged in no orange light indicator but the laptop is working properly with charger only plugged in. here is the measurement.I noticed when battery and charger both plugged in the voltage on current sense resistor PR1 is fluctuating form 19v go down but when charger only plugged in its working fine here is the measurement of PU1 BQ737 when battery...
      02-14-2023, 08:31 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
    • Loading...
    • No more items.
    Working...