getting beeps 5 times on start up with Dell inspiron N5110

Your Dell inspiron N5110 start up with 5 beeps its indicates that your Complementary metal–oxide–semiconductor (CMOS) battery failure.
Change the coin cell battery of cmos. Then start your Dell inspiron N5110 will start normally. My laptop also gone through this problem I search internet for the solution and get this solution. this solution work for me. when i replace CMOS battery the beeps are gone now my laptop starts normally.