Thanks to all responding. At this time, I don't think the battery needs rebuilding. It's the charger unit which is needed since these batteries do not charge on the Optacon and that's per the manual. If anyone knows that it does, then please let me know. There is a website at http://www.batterymart.com which states they have Optacon Batteries for $29.95, but it may be an old listing. Regards, Vince Mistretta Cellular - 561-234-7631 Skype - vin5451 To unsubscribe at any time, just send a message to: optacon-l-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the message subject. Tell your friends about the list. They can subscribe by sending a message to: optacon-l-request@xxxxxxxxxxxxx with the word "subscribe" (without the quotes) in the message subject.