Dell N4110 real time clock error

I hav dell n4110 which starts beeping at startup and resets d date and time.
Any solution will be much appreciated.

Hello Adibaba. My name is Sreenath and I work for the Social Media and Community team at Dell. The fact that the system date and time are getting reset indicates that there could be a problem either with the CMOS battery or the motherboard. But, the chances of the motherboard failing are lesser compared to the chances of the CMOS battery failing. But before coming to that conclusion, I just needed to know, when you say the system time is being reset, are you referring to the time in windows? Also, when you get the beeps, do you get any message indicating that there is a battery failure and defaults are being loaded? Kindly reply and let us know.

Thanks & Regards
Dell_Sreenath_G
Dell Social Media Responder