Stormin Mormon wrote:
What's a way to use up old 9 volt transistor batteries?

What is your time worth?

Your commodity alkaline 9 V battery takes about 11 hours to
discharge from 7 V to 4.8 V at 10 mA (70 F)
So that is an average of say 5.9 mW for a period of 39,600
seconds. Could that really be ~ 233 Joules?

One $0.14 kWHr delivers 3600000 Joules of energy.
So for 14 cents, you get the equivalent of ~15,450
"flat batteries'" worth of energy.



--Winston