fj12ryder wrote:
...That might work as long as the running time is consistent over the days. Suppose you run 2 days, it warms up and you don't run for 2 days, then you have to run 3 days. Or it's warm enough that it only comes on infrequently, then cools down and it runs alot. How are you supposed to get a reliable estimate of how long it will last? Seems to me a way to measure what's in there is much better than a WAG.
Spoken like a man that never owned a 1950 Ford with no operating Gas Gage.
Not sure I'd like to see what instrumentation you'd want on your Shot gun while skeet shooting. ;)