Need instructions to take laptop apart to replace bios battery, my laptop is losing time and i think it needs replaced. Can someone tell me how to locate the battery?

Take the PC apart and remove the CMOS battery, wait few seconds and replace it.

Most laptopsrequire you to take the laptop apart to get to the CMOS Battery. It willbe a silver battery about the of a nickel on the motherboard. Themost common is CR2032. Also sometimes the battery will be in a vinylcovering and have a cable that attaches to a port on the motherboard. Whichever type you have you'll need to either remove the battery or unplug the cableand let the laptop sit for an hour or two. Then put it back, reassemblethe laptop and reboot the laptop. With the CMOS battery out the computerwill lose the date, time and password.

You probably need to replace the BIOS battery. This battery is small and on the inside of the laptop connected to the motherboard. It stores the BIOS settings, date and time. If this battery becomes worn out then it will cause your issue. First try and press F1. Navigate to the last tab and select to restore defaults, then save and exit. If the computer boots up fine but the next time you use it the same message appears then you need a new BIOS battery. Alternatively your HDD may be damaged if it cannot find a boot device. Check your HDD is recognised on the boot menu by pressing F12, select it and press enter and your OS should boot. Hope this helps,
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I wish I had better news to give you, but I am fairly certain the Asus mainboard will need to be replaced. The computer Bios is the first set of instructions your computer uses recognize its hardware and perform is initial operations. A power failure while writing new instructions to the bios chip means the computer has incomplete and corrupted basic operation instructions.
What is crucial is how complete the bios update was before the power was interrupted. Without a display, its nearly impossible to tell - or attempt a bios reinstall. Losing power while performing a BIOS flash is a catastrophic scenario. The only way you could lose power on a net book or laptop computer is to have a dead or missing battery and suffer a power outage or ac disconnect during the procedure.
If the computer is still under warranty, you can try exchanging it with the retailer or RMA through Asus. I wouldn't mention however how the computer became unusable, that will likely void your warrnaty and disqualify you for an exchange.
I wish I could do more to FixYa, but this is just one of those critical issues that kill a pc. PIf you found this information helpful, please leave me some feedback.

The cmos battery is gone bad.

Hi,

what you replace is not the CMOS, but the CMOS battery.

On an ACER from those years the CMOS battery looks like a coin, or a coin wrapped in plastic and connected to the motherboard.

On most models from same series the battery is located on the lower side of the motherboard, like on picture below:



On some model the battery may be located underneath the keyboard.

Here disassembly instructions for a similar model.

If it is a bios password, you can reset by using the jumper which should be located near the cmos battery.

A near flat battery will cause the laptop to lose the time and date even if you change the BISO time and date, it will still lose time.
To get into the BIOS setup press F2 as you boot up the laptop.
Check the various settings and you will get to the time and date setting, follow the screen instructions to set the time and date.
I suggest you get a new battery installed before you change the time and date.

You would have to totally rip apart the laptop to get to it, and on some HP models the batteries are soldered on. Also, on some modern laptops pulling the CMOS battery won't reset the password anyways.
A more effective solution is to call hp and tell them you need to reset the BIOS password on your laptop. You will have to provide them a proof of purchase for the product. After you provide that (usually fax or scan of receipt ) they will give you instructions on how to reset it.