Duracell cells, are they rechargeable NiCD or NiMH ?
you can fly on non rechargeable batteries i just dont see the point of it, what to dig it out of the airplane every time?

in my 4-5 servo S3003 airplanes i'm using 1000 mah and 1500 mah battery packs, if i buy new battery packs let it be more mah.
i'm getting 6-8 flights from these packs.

the down side of this is the long charge time of the 1500 mah about 45 minutes.
with the 1000 mah its something like 15-20 minutes charging.

im charging it with a Hobbico QuickPeak charger on my way to the field and one more time during day, for the Tx and Rx.

Alex