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Batteries & Chargers Discuss Li-P, Li-Ion, NiMh, Nicad battery technology and the chargers that juice 'em up!

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Old 01-28-2014, 04:49 PM   #1
realnewbie1
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Default Need help choosing battery specs

Hi I am new to wattflyer and am looking for advice on my RC that I am building.
The maximum weight for this plane is 5kg and it is required to fly continuously for 40 minutes on a single charge. Based on these weight and flight time requirements what specifications for batteries should I choose?

Currently I am thinking of using Li-po batteries. 3S 30C 11.1V 3900mah. Will this be enough to meet the requirements? This is a ball park choice as I don't know how t calculate what specifications I will need.

I also need to choose an electric motor for the plane.

Any help will be greatly appreciated, thank you.
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