Hey Mark,

The plane does have an ammeter, but I was struck with the deer in the
headlights look when the light first came on, and it didn't stay on
long enough for me to really troubleshoot it. The second time it came
on, I was already in "get the plane on the ground mode", with darkness
coming on, and it didn't stay on very long that time either...

I haven't been up to the airport since that flight, but I'll try
loading it up on the ground and see what the behavior is.

Thanks,
Todd