On Fri, Jun 3, 2011 at 4:31 PM, Oli Glaser wrote: > > I think with the average use of the tuner and put to sleep in between, > almost anything will do. > I would do a rough calculation on average current consumption - you may > find it's not much more than battery self discharge, and the amount to > keep it "topped up" will be very small. Thanks for putting it into perspective. I'll probably just go with a 100 mA= h Li polymer cell and a small solar panel and hook it up to a buck/boost converter to charge/use the battery. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .