My Marshall Emberton I not charging properly

I have had this speaker for about 2 years now. I was facing a battery degradation issue where my speaker was not charging fully and it kept shutting down at higher volumes. I had its battery replaced via Official Marshall Support here in India about two weeks ago. I don't use my speaker very often like I used to, but today I had to charge it.

I noticed that the charging animation doesn't go all the way up. Is this normal with all Embertons? On the internet, it shows that the charging animation goes all the way up. I hadn't noticed this earlier because I never had the chance to. It's been only two hours, but I think there could be something wrong with the speaker.

https://reddit.com/link/1e8gpng/video/tlwdf4haptdd1/player