Well worth the money, as my Palm E2 would have been useless without a new battery. My only reservation is that to someone (such as I) with no technical skills, it wasn't obvious how to get the Palm apart and how to install the battery.
I found a great video on You Tube which saved the day. There was a moment when I wondered how I was going to undo the fiddly little screws on the Palm. My mini Swiss army knife came to the rescue. It took only minutes to install the battery once I had overcome these obstacles.