I have a Cable and Wireless cwd8500 cordless phone, and also Geemarc cc10 cordless phone set.
The Cable and Wireless phone has a bit of damage on the front but still works fine.
The Geemarc is an old phone set of 3 cordless phones - old enough to have telescopic ariels! Tested this and it works but is a bit crackly.
All the batteries were flat so have been on charge to enable me to test them.
Also have a BT Equinox 1200 cordless phone but no batteries to test this at the moment.
Any of those help you?