Jim, I think the general recommendation is to get the same brand batteries as your charger. I don't know if that is just a marketing thing, but I read it often enough that I guess it has stuck. _____ From: bookport-bounce@xxxxxxxxxxxxx [mailto:bookport-bounce@xxxxxxxxxxxxx] On Behalf Of jnuttallphd@xxxxxxxxxxxxx Sent: Tuesday, August 21, 2007 12:04 PM To: bookport@xxxxxxxxxxxxx Subject: [bookport] Rechargeable Batteries Okay you've convinced me of the advantages of using my BP as an MP3 player. I already do so. So I guess I'll continue to do so. Given that MP3 playing eats up the batteries much more than my text-to-speech (doubletalk), what are the best rechargeable batteries to get for using with my BP? I already have a re-charger. Just need some advice on the rechargeable batteries. Jim -- Michigan