Erm, are there any Rude Nora owners who fancy lending me a spare battery or ten for a week in mid-Feb? I'm potentially being bullied/subsidised into going down the Hirlatz (Austria) & need a week's worth of the big lithium cells.  Will guarantee that borrowed batteries won't go underwater so no danger of flooding (although it seems totally waterproof so far but I wouldn't take the risk with others). 

If the trip happens (still not certain) then I can possibly arrange collection from wherever & if you're in S-Wales or Mendip I could lend a Bisun as replacement.  One day I'll buy more cells from Biff but at the moment it's not an option....

Cheers.