Acer Predator g9-792 battery capacity over design capacity

gyotov91
gyotov91 Member Posts: 3 New User

Hi everyone!
I've been strugling with my Acer Predator battery.

I've already replaced it, since the OEM one was completly gone.
How ever, it seems that there is an issue with new one(again OEM) too.

It seems, that it works as expected and can operate for a few hours, exept, that it always shows a full charge even at 0%.
I ran `powercfg /batteryreport` and it seems that the full capacity is more than the designed one. Screenshot below:

I appreciate any help, thanks in advance! :)

Answers

  • Hello! Have you tried uninstalling the battery and driver in device manager?

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  • StevenGen
    StevenGen ACE Posts: 12,029 Trailblazer
    edited November 2023

    The caption below are the OEM batteries for the Predator G9-792 laptop from its SG, only use OEM replacement batteries, DO NOT USE the cheaper refurbished batteries from China that you can purchase on eBay, Amazon and other battery sellers on the web, which are all batteries that their internals are NOT NEW, and they are an old, regenerated, retriggered old battery with old cells that are made to work and are problematic with charging and showing their charge in windows or in extreme circumstances can cause the problems that you are having.

    Get your battery from either Acer parts directly or from a known Acer parts distributor like newegg Replacement for AcerKT.00803.004, KT.00803.005 (14.8V 6000mAh 88.8Wh) as the problems that you are getting is because the new battery that you are using is a refurbished battery that does not function or charge like an original OEM battery should within your laptop.

    Also, why are you using the Win-10 32bit Built 6.2.9200 version? Your laptop should be operating on the latest Win-10 64bit 22H2 version.

    NOT THIS VERION below:

    Also, get your laptop bios up to date to Version 1.08 and the Firmware up to date to Version 14 (if you want your laptops Thunderbolt 3 (NVM: 14) Update Tool to work) this is when you change Win-10 to 64bit.

    As you need to update the old October 12, 2021—KB5006670 (OS Builds 19041.1288, 19042.1288 OS build version and 19043.1288) to the new Windows 10, version 22H2 as all this will also help in the functionality of your laptop and its battery. Good luck and hope this helps you out.

    These are the Acer recommended OEM batteries for your Predator G9-792 laptop that are a Li-Ion 4S2P SANYO 8 cell 6000mAh type battery and you should ONLY use.

  • Puraw
    Puraw ACE, Member Posts: 13,036 Trailblazer
    edited November 2023

    The design capacity is just a number entered by the vendor in the battery Smart chip, not measured, just a sales figure, always on the high side, while the initial Full Charged Capacity is measured by BIOS and recorded by MS ACPI drivers that is normally lower than the design "capacity". To have this reversed like you show means that the new replacement battery has not yet completed one full charge cycle for BIOS and Windows to register the capacity and all battery statistics will be inaccurate or plain wrong.
    To perform a full charge cycle with a new battery (or new laptop), turn off the laptop and plug in the adapter, charge till the amber charge LED is blue and let it charge another 10 minutes extra. Boot to Windows and unplug the adapter (verify that the battery meter on the taskbar reads 100% charged). Use the laptop all day till it turns off on its own (hibernates), close the lid and plug in the adapter, charge till the amber charge LED turns blue and wait a while. That's it.

  • gyotov91
    gyotov91 Member Posts: 3 New User

    Sorry for the late answer!
    Can you please provide a seller for the OEM batteries, since I'm from Bulgaria and newegg doesn't ship?
    Thanks in advance!