Manual isn’t terrible but maybe since it’s a “pro”/hobbyist charger they’ve expected their customers to know about all this before buying this particular model. Is this the manual you’re looking at? https://cdn.shopifycdn.net/s/files/1/0267/9180/5010/files/TB-6532_manual.pdf?v=1640080591
That’s from their product page: User Manuals - EBLOfficial
That’s a lot of explaining to try and do, but they’re all very useful features. Have a look through this brief but well-done manual for the Maha charger. It doesn’t do li-ion cells but the features are similar and they give a little explanation of each one. Also, you could look around on Battery University to learn the basics, although it’s a bit of a labyrinth with lots of articles…but it’s all very well explained if you want to take some time to read and learn. Basically NiMH has some best-practice care if you want them to perform their best and last as long as they can….li-ion is more robust but some of these charger features are useful to tell you things that lesser smart-chargers can’t, and the discharge feature is really handy for long term storage of cells if nothing else. Keep in mind that all of our rechargeable cells have a finite cycle life, so if you’re using things like the capacity and refresh (i.e. “loop”) features then you scrub off a little of the battery lifetime in the process (plus they can take a long time to complete, depending).
Maha manual: https://powerex.helpdocs.com/desk/file/3521515/MH-C9000PRO%20Manual.pdf
And the Maha product page…they link a couple of youtube videos that might be helpful to watch: MH-C9000PRO Professional Charger-Analyzer | Powerex by Maha Energy