Extreme noob - battery fixing help

Machine: HP EliteBook x360 laptopmacOS Big Sur running beautifully is all other ways.

No battery indicator or status. I've seen the rehabman posts but, as I said, I'm a bit of a noob at this and can't understand what I need to do. Anyone have the battery working on a x360?

submitted by /u/Stuartuknl
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