On 14/03/2011 15:46, Bob Blick wrote:
> If you want really super low temperature performance you can use lithium
> thionyl batteries, a bit pricey but good for military applications where
> you just need it to work.

yes used to see those on some PCs and industrial controllers 3.x volts=20
and about 2/3rds AA size. Those were what I was thinking of.

They can last till you lose interest in what they where fitted to.

Don't dispose of in fire. Probably.
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.