Battery incorrectly reads 100% after bios update

1. ran for 9 years and die just now.
2. or bought it like this dead, garage sale $1 PC?
3. what, tell history first, found it at the Goodwill(tm)?

laptop dead , as old as year 2007( C14 dated by me)
fans dead?<< all evidence matters it is a PC.
screen for sure 100% totally dead?, no Dell SPLASH screen,and POST progress missing (green bar) is the LCD dead. most are this old. CCFL lamps, die at 5years, not last 9, used 8hr/day
do the flash light test yet.? see data there means CCFL is dead.!!!!

https://www.pcdied.com/monitors_and_screens/flash-light-trick.html#flashlighttest

wrong power pack used?
battery means what?, huge BATTERY or COIN cell or both. guessing huge. IMG it has 2 batteries,? yes.
gee the coin cell is now bad and all PC s fail for this at 7 years, or just tad more, 7 is max life, EOL
CMOS RTC COIN cell battery.(with pig tails and plug) page 190 in your free manual read it.
there are in fact about 20 causes, due to 20 modules in a laptop avg.
what matters first is those silly short lived batteries.
that only last a 10th or less the life of silicon chips.
top fails are Batteries all, then HDD bad.

My bios , See the NVRAM a mess, (coin dead)
some bios go to black screen thinking it is being hacked.(modern trick) called blocking the :"guy in the middle paranoia"
others older tell you and error CMOS Checksum failure.(nicer)
other PC the BIOS will tell endless lies, based off of dead settings
even demands a Password that never every existed before.
we call this CHAOS. never diagnose CHAOS. fix the batteries first
NEW.
on the harder fails we must strip the PC down to find what is shorted.
after new COIN and resetting BIOS in page 1.
or wrong power pack
or any 20 other things shorted.

did you first remove all USB devices, just PC and power pack
and no huge battery allowed now testing and a new coin cell is now.
your coin cell is 9 years old that is is bad or has zero future ever.
we replace it and do the 9 steps here
https://www.pcdied.com/cmos.html#Reset_only

EOL , end of life 101 , pesky laptops 9 years old.
CCFL lamps dead, 2010 LED began older are CCFL and all are dead now ,expect rare hangerqueens, (means never used ever 9year till now) (as in NOS, new old stock in a box never used for 9 years)

• all batteries are bad (both are)
• HDD is bad. never seen one go 9 years, not me, (9 years used)
• 5 maybe.
• assumes no usb devices connected (shorted)

the hard part is PC is worth zero
and fixing this in order of cheaper to expensive ends up with the classic econ101 problem, putting up good money after bad.
as in a $100 saddle on $5 horse as my grand pappy stated, born 1890. (He be wise then and now)

PCs older than 2010 are not fit to use ever, and have zero value.
for sure dead.
buy a PC i3 CPU and up for a future.

12 volts. Follow warnings and cautions. I've been charging batteries for 35 years and still read them to be sure.

I suggest that you make sure the battery is in fact good before you update the BIOS. If the battery was charging OK and suddenly stopped charging then the problem is not the BIOS version.

If you do decide to update the BIOS you will need to find the appropriate procedure to follow by searching the Acer support site and/or knowledge base. Please be aware that using an incorrect method or if something fails during a BIOS update it can result in unrepairable damage.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/dave_fb2c45146b845cea

There is a short-circuit happened at your laptop or the laptop charger.

Ifthe laptop battery is more than 3 - 4 years old then the battery could be wornout. Rechargeable batteries have a finite number of charge and discharge cyclesand will lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up atall. ORThe battery shows a 100% charge but when the adapter is disconnected thebattery drops off to zero capacity in a very short time. Ifthe battery drops to an unacceptable charge level then the battery needs to bereplaced.

Ifthe cell phone battery is more than 3 - 4 years old then the battery could be wornout. Rechargeable batteries have a finite number of charge and discharge cyclesand will lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up atall. ORThe battery shows a 100% charge but when the adapter is disconnected thebattery drops off to zero capacity in a very short time. Ifthe battery drops to an unacceptable charge level then the battery needs to bereplaced.

Try downloading the latest bios for the laptop, i had the same problem of windows reporting that the battery was fully charged when it was actually empty, a bios update fixed the problem

My guess is that the battery is worn-out -- no longer accepting a charge, nor holding a charge. Replace the battery, or find a specialty business that "refurbishes" batteries (by opening the case, replacing the cells, and re-sealing the case).

i think your battery may be down...go to a specialized service to test it!