I have never seen one in mine, so I guess you can.
To be sure, just try renaming it, and see if it makes no difference.
If not, then delete it.
Glenn
----- Original Message -----
From: "Sarai" <bucc7465@bellsouth.net>
To: "Rock Box" <rockbox@cool.haxx.se>
Sent: Saturday, October 08, 2005 8:00 PM
Subject: Can I delete this file?

Hi:
I just noticed the battery.dummy file on my recorder, can I delete it
and what exactly is it?

Sarai D. Bucciarelli
Received on Sun Oct 9 03:04:49 2005