I have a 2 years old Inspiron 7537, it is working perfectly and out of warranty.
It beeps 5 times in Dec 2016 and I sent it to a shop to replace the CMO battery. it fixed the issue.
Then on Jan 2, I drained the laptop battery (not CMO battery) during a trip. It now continues to beep 5 times again.
Should i replace the CMO battery again or it is something else ? i drained my laptop battery a couple times before but don't think it will do anything to the CMO battery.
I did all the possible dell diagnostic and they all passed.
I can replace the CMO battery again but just want to make sure that i am fixing the root cause.
May I please have your comment.
Thanks for posting.
If you've confirmed (with a volt meter) that the new CMOS battery is good, then you may be having a motherboard issue.