Consider this, I fly my .60 size P-40 for three flights on average when I go the field. I run a 1100 mil amp LiFe 6.6 volt pack, 5 standard servos and a 2.4 ghz Airtronics radio. I figure thats about 20 min of flight time. It take about 100 mil amps to recharge my battery pack. If you recharge at half capicity, That means I could fly almost two hours before reaching half capacity. Just food for thought.