Hi
Im not quite sure about this specific model but I do know that chromebooks in general are quite easy to work on as there isn't a lot going on inside
I would say its as easy as taking the bottom panel off, unplugging the battery connector(look for the battery cable to find it),unscrew the battery
and that's about it, iv done this process before on a schools dell Chromebook and that's how I did it
if you need any step by stem help please don't hesitate to ask me or anyone else here
Thanks:-)