I have recently had a company called Power Cell recell some Hp 41c 82120 and thermal printer nicads. The turn around time was 3 days and they used all the original paper tubes etc. I would recommend them and they may be able to help other users/collectors with dead packs.
Power Cell Australia pty ltd 228-230 Hlifax St Adelaide 5000 South Australia
email sales@powercell.com.au