Rather than hijack the battery thread I thiught I would answer the guestion about the G3X with a new post.
The G3X has been both more than I expected and a disapointment.
I am amazed at the amount of data that it contains.
I especially like the low and high altitude charts.
For years I have used low altitude enroute charts for cross countries even when VFR.
When I started flying there were still low frequency radio ranges.
We progressed to VOR's and then Loran and finally GPS. I have had them all.
As an engineer who has been involved with avionics all of my life in some fashion or another I have watched avionics advance to the glass cockpit level in a very short time.
The G3X has enormous capability but the presentation leaves somthing to be desired.
Some data entries require several key clicks to accomplish.
Some pieces of information also require drilling down many levels to obtain.
I still have not learned how to "push" a com frequency from the G3X to my Garmin transceiver.
The manuals seem to be mute on this point.
I think the G3X manual is poorly organized and badly written.
I have another airplane that has Garmin 530's installed and they seem a bit easier to program.
Having said all of this I still think the G3X is a good investment and I am happy I ordered it with my airplane.
Someone told me that, today, it takes longer to learn how to operate the avionics than it takes to learn how to fly the airplane.
I guess that's true.
Maybe I just need to fly more.
Bill