Chosen Solution
where is located teh CMOS internal battery?
The CMOS (RTC) battery is on the back side of the motherboard. It is connected electrically by a 2 pin connector & stuck to the MB with some sticky stuff. It is a 2.4v, 15ma battery & can be found in “new” condition on EBAY for $5-$6.
You need to disamble your laptop and look on your motherboard you will able to see cmos battery on your laptop.
