x360 Spectre - keyboard bulging, separating from base

[Allier919]

I have an x360 Spectre convertible laptop purchased in 2017 (warranty has expired).  The keyboard/trackpad panel is separating from the base and is bowed.  It's very noticeable.  Was in Best Buy today and asked the Geek Squad about this. They were alarmed and said I need to get rid of this laptop right away, that the battery is swelling and could possibly explode or catch fire.    I've run the test to determine if the battery is part of the HP battery recall and it is not (www.HP.com/go/batteryprogram2018 ).  Online searches suggest its possible to remove the battery and either replace it or run the computer w/out the battery using the power cord.  

I'm looking for advice on whether it's safe to attempt to replace the battery or if I really do need to dispose of this laptop and buy a new one.

[KrazyToad]

@Allier919

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