sundance-communications.com/forum Forums TDM Business Telephone Systems Panasonic Telephones & Systems Panasonic KX-T3821R Battery Question

I was recently rifling throuh some old boxes of mine and found an old panasonic easa phone cordless.

The phone hadn't been used in a long time so I threw it on the charger for a day. I imagine rechargeable batteries arent't supposed to keep a charge after a decade ?

When it didn't take a charge I popped the cover off and noticed that I had accidently pulled the ground wire off of one of the 3 clips that make contact with the cradle. The red wire from the phones board luckily didn't snap off.

The first plate has a orange wire , second a brown and third black. I suppose the black wire from the battery needs to be soldered to the third one?

I also noticed that almost all the replacement batteries online have a plug , with this phone its just two wires. What are my options ?

Any help would be great. The phone is in great shape and I'd love to get the old girl up and running again .

cheers

radio shack and a soldering iron

A new battery for that will cost 1/2 the price of a new phone that has much better technology. kiss the old girl fairwell and get yourself a new phone that all your neighbors won't hear.

I doubt I'll actually use the phone

Just wanted to see if I could get it working again.

Any info on the wiring would be great.

cheers

Panasonic Easa, please complete your profile for us and we'll see what we can come up with.
Thank you, MrG

there you go , all updated

Easa, does that battery have any markings on it?
is it a P-05-F3N1 ?
All parts and the instruction book is still available for that unit from Panasonic National Parts.
https://www.pasc.panasonic.com/epartr/
Under model # type KXT3821 and click on "list parts by model" Do not hit the enter key as for some reason
their program doesn't like that.
MrG

Thanks for the info.

I soldered everything back up with a new battery from Radio Shack. For some reason there is a ton of static on the line.

Any ideas ?

press the channel button.

Also, make sure that you let the battery charge fully before you use it (overnight should be sufficient) those old beasts need a good full charge to transmit well.