changing cmos battery on hp15 laptop

[kingpin300800]

can someone tell the correct way to change the cmos battery on my hp15 laptop, i replaced the main battery on the laptop now i am getting a message that the cmos has the restart computer to get the right date and time, also the computer won,t boot unless i have the ac adapter plugged in to the laptop, i just don,t want to lose any configrations by removing cmos batterythe wrong way,

                                                                                                  thankyou KINGPIN 300800

[Paul_Tikkanen]

Your notebook does not have a CMOS/RTC battery.

The main battery also serves as the CMOS/RTC battery which maintains the BIOS and system clock settings.

Below is the link to the service manual:

Maintenance and Service Guide HP 15 Laptop PC

Chapter 3 has no CMOS/RTC battery part number.

Chapter 5 has no CMOS/RTC battery removal and replacement procedure.

[kingpin300800]

Paul.

          I calibrated the battery , getting message still that cmos needs to restart to correct date and time , also won,t start up without ac adapter plugged in . Battery shows fully charged.

[Paul_Tikkanen]

Unfortunately, I would not know what the problem could be.

[kingpin300800]

Hi Paul.

                   thanks for the reply. if you can think of anything in the future,can you please reply.

                                                                                                                                        KINGPIN300800