11months on battery at 87%... still working!

Thanks for the speedy reply, I owe you a beer! works perfectly.

I got it from CPC in the UK which are owned by Farnell
https://cpc.farnell.com/hammond/1593qgy/case-with-bat-compart-110x66x28mm/dp/EN82140
You may have to make a slight mod to the board or enclosure to make it fit.
good luck

Thanks for the reply and spotting one of my many errors (now corrected amongst others!).
Managed to get one of them showing up in Domoticz, lets see if i can get them both in there without the temp hum being crossed over between physical sensors. There seems to be a few posts about this problem.