General

Well that's bloody terrifying! That does not look like a happy battery (The crack on the right-side of the top of the unit tells me that it's not just coming loose, but it's the battery bulging).  Luckily iFixit have a ready-made battery replacement kit for £35, which should be a pretty easy and straightforward job, even for a pleb.

Wahey! A happy ending! That's a rarity

And it’s taken another turn! Looks like the Giant Bomb staff have bought Giant Bomb and gone independent. To be honest I’ve still no interest in watching this version of the site but good on them for taking back their own futures. https://www.giantbomb.com/join

Alternatively, instead of Lord of Shadow, one could just play God of War (pre-reboot) or Devil May Cry instead. It’ll be much less frustrating than Lords of Shadows attempt at character action.  I do kind of wish Konami would give an easy method of playing Curse of Darkness though (I think it’s that one or Lament of Innocence) I have it via PS3 but that’d be a chore at this point. 

@BowserBasher going by where the battery is in the Switch, it could well be that. It does seem to be a relatively straightforward fix though, no soldering required, just the right screwdriver, a prying tool, and the new battery to go in place of the old one. Switch 2 is just under 4 weeks away though, so you could chance it until then... but... if it is a bulging battery then... yep... probably sooner rather than later, though it might be OK, and you could be lucky enough for it to last long enough for you to do a system transfer, then you could just sell it as working but 'spares' knowing that it likely needs a new battery. But for the sake of safety, the cost of about £15, and a little bit of time & effort, it could be worth replacing. In fact, going by what other people have said about bulging lithium batteries, it is probably worth putting the entire Switch console inside a metal container just in case... the same goes for if you replace the battery, put the bulging battery inside a metal tin, or maybe even a fire-proof bag, in case the battery reacts further, and definitely keep any lithium battery away from any water source. Heck, just reading up on this has made me think about how I want to store any replacement batteries I have, even new ones.