ORIGINAL: cmoulder
Matt,
The electric flights are about 6 minutes, plenty for the intermediate sequence and then a couple more minutes to repeat some parts. It isn't very demanding, of course, but I am flying it pretty big.
My typical flights with the gasser are about 9 to 10 minutes, so the difference in battery usage is larger because of that. I typically used about 150-200mAh per flight with the Focus II. That's for Rx and Ignition, as you mentioned.
When I went out and flew last Thursday I purposely did not recharge the Rx LiPo's for the Sickle, which means that they now have 9 flights on them without recharging. I did, however, keep a very close eye on them to make sure there was no chance of over-discharging, and the catastrophic results that could follow!
I have not had a chance yet to recharge them on the Cellpro 10s to see how much charge they take. But I was VERY surprised last time to see a recharge value of only 152 mAh for 6 flights. And very interested to see what I get this time, whether the previous number was a fluke.
However, I did just check the present voltages of the two 350 mAh packs, and after 9 flights one of them is reading 7.67 volts (7.35 with a 500mAh load, 7.00 with a 1amp load) and the other is 7.96 volts (7.68 with a 500mAh load, 7.28 with a 1amp load), so these Rx batteries could have handled several more flights.
How far are you driving the batteries?
I drove mine hard one time when I flew a fifth full flight once last year(95 min + of flying that day), with a starting voltage at 7.55 or so. After the flight, voltage had dropped to 6.2. Revived the battery okay but that told me to never do that again. So now, 75 minutes of flying session is all I do. Ending voltage is consistently around 7.5V