It's on the back of the Clie. 5.2v 800mah.
What I'm curious about is if the 5.2v 1000mah battery off of http://www.cliebattery.com
, aka laptopsforless.com, will fit in the TJ37. I emailed them long ago asking for the dimensions for it but they never emailed me back. That made me not even want to buy anything from them. If someone else wants to risk it to see if it fits I would like to hear if it works
For those who do not know, the mah is merely the capacity and wound not
cause any problems. It would only make the Clie last a bit longer. As long as the voltage matches it, and it fits in the Clie, it should work.