Hi all,

Two quick battery questions:

What type of battery would you recommend for a situation where you need
about 9V, 20mA, for about one minute at a time (followed by about 30
minutes of off time), repeated several times? The battery must be as small
and light as possible (this is for a model rocket altimeter). Are there
coin cells capable of this current level? If so, several could be stacked
to get 9V.

Secondly, I remember small (smaller than AA size) 12V batteries being
discussed here some time ago, but I can't find a supplier or the name of
the type of battery. I think they might be used in wireless controls (such
as car door lock transmitters).

Thanks,

Sean

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads