CMOS stands for Complementary Metal Oxide Semiconductor and internal computer batteries are CMOS batteries. The battery is required for a computer to boot up and save settings to the BIOS. Sometimes battery removal is necessary due to batteries aging and becoming weak. To replace the WinBook XL2 CMOS battery, you must take the computer's casing off and pop the battery out of its holding socket.
Instructions
1. Remove any cords or attachments from the laptop.
2. Place the laptop face down on a flat surface such as a table or a desk.
3. Unscrew any screws on the bottom side using a screwdriver.
4. Remove the system compartment cover.
5. Press both latches on both sides of the Mini-PCI socket that holds the wireless card.
6. Slide the card out of the socket and carefully remove the two antennas from the wireless card.
7. Take off the tape that holds the black plastic cover.
8. Remove the plastic cover.
9. Push the battery holder opposite the battery until you are able to remove the CMOS battery.
10. Replace the old CMOS battery with a new one.
11. Place the black plastic cover where you removed it.
12. Tape the cover down.
13. Attack the two antennas to the wireless card carefully and reinsert the wireless card.
14. Put on the system compartment cover, then reinsert the screws.
Tags: wireless card, plastic cover, black plastic, black plastic cover, CMOS battery