I noticed the other day that when changing a battery right after a prior flight and powering up the Spark again, I have essentially the same number of GPS satellites immediately locked as I did at the end of the previous flight. No need to wait for enough satellites to be "Ready to Fly."
That's obviously quite different from the initial flight of the day, where I usually waste 5-7% of the battery just waiting for 10 satellites so I can at least take off and have reasonable confidence of a RTH location.
I'm not sure why this is, but it makes me wonder if, in the case I might need to maximize my flight time for each run, having a "GPS lock" battery set aside for the initial GPS lock might make sense. This could be one of the earlier batteries with the retention issue that occasionally pop up on sale.
Thoughts?
That's obviously quite different from the initial flight of the day, where I usually waste 5-7% of the battery just waiting for 10 satellites so I can at least take off and have reasonable confidence of a RTH location.
I'm not sure why this is, but it makes me wonder if, in the case I might need to maximize my flight time for each run, having a "GPS lock" battery set aside for the initial GPS lock might make sense. This could be one of the earlier batteries with the retention issue that occasionally pop up on sale.
Thoughts?