Battery problem with Lenovo Laptop

I am running Windows 10 on my Lenovo T440s laptop.   In addition to the built-in battery, I purchased a 6-cell secondary battery.   Over time the secondary battery died, and I just replaced it.   After installing the new battery pack, my Power Options only shows the single new battery, whereas it used to show the status of both batteries.  Please advise.

Thanks,

Phil
philsimmonsAsked:
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JohnBusiness Consultant (Owner)Commented:
Is your secondary battery a Lenovo-supplied battery?  If not, that is likely your reason.

If it was supplied by Lenovo, return it under warranty.
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philsimmonsAuthor Commented:
The secondary battery seems fine.  It's the primary battery that no longer appears.
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JohnBusiness Consultant (Owner)Commented:
It may be that the battery (primary) needs replacing. It may be worth your while to take the machine to a local shop for an assessment
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philsimmonsAuthor Commented:
Thank you!
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JohnBusiness Consultant (Owner)Commented:
You are very welcome and i was happy to help you. We have a lot of ThinkPads at clients and see the odd battery issue. Good luck with this machine
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