Quick question on Purism Librem 13 battery

Is it removable?

If not what is the process to replace it?


FYI: the replacement batteries from the purism website have four extra plastic tabs (2 for extra screws and 2 plain) compared to earlier batteries. I had to remove these to fit the replacement battery in my librem 13 inch v2 model.
(The wiki does not currently mention this.)