Originally Posted by NorthernTraveler
There is a thread around here that shows you step by step how to replace the internal battery on a 276c.
I think Big Dog put it up, but could be wrong.
Oh, and just a note - you might not want to disconnect the screen to make it easier to work with. The tutorial doesn't talk about this, but if you do you could have big problems.... don't ask me how I know!
I have the battery on order, and replaced one on my old 176C years ago!