starting issues

[bwh21]

Hi all,
I'm having an issue with my 1999 2.5L 5-speed starting. I have been having trouble starting it last week but I put it on a trickle charger overnight and it started fine the next day.

I tried starting it yesterday and had the same issue. The trickle charger read at 90% this morning but I couldn't get it to start. I checked the battery with a multimeter and it read 12.6v to 12.9v so I'm starting to think that it's not the battery. I've replaced the ignition switch about 9 months ago so I don't think it's that either. Any ideas?

Here's a video of my attempt to start it - https://imgur.com/a/0yPJHbQ