(Continuous Current: 22A, Burst: 28A, 275W)
1 - http://www.hobbypartz.com/77p-sl3000-3s1p-30c-3333.html
2 - http://www.hobbypartz.com/77p-sl4000-3s1p-20c-3333.html
3 - http://www.hobbypartz.com/77p-sl5000-3s1p-30c-3333.html
4 - [Any other you might recommend]
The ideal combination would provide enough power to the motor and allow for 30min or more of flight. From what I read and seen, the 1st battery above seems to be the best. But I'm somewhat confused as to the flight time I'd get out of it. I'm thinking that during take off, the motor would require the full 28A of current and during flight it would fly at half throttle, which would probably be around 15A.
The formula I've found for calculating the battery discharge current is:
Battery 1: (3000mAH x 30C)/1000 = 90A <-- the battery would be capable of providing 90A, is this correct?
Battery 2: (4000mAH x 20C)/1000 = 80A <--- 80A, correct?
Battery 3: (5000mAH x 30C)/1000 = 150A <--- 150A, correct?
Formula for flight time:
Battery 1: (3000mAH/15000ma) x 60 = 12min flight time <--- correct?
Battery 2: (4000mAH/15000ma) x 60 = 16min flight time <--- correct?
Battery 3: (5000maH/15000ma) x 60 = 20min flight time <--- correct?
So this seems a bit weird to me. Isn't there any battery that could provide the ideal, say, 30A of current instead of the high currents above (90A, 80A, 150A) and last for more than the flight times I've calculated above?
Additionally, if I only need 30A at max, would the battery then take the "left over" current and somehow provide a longer flight time? In other words, if I fly slow and only use up 15A on a continuous basis would I get a longer flight time than if I fly using 20A+?
Also, does anyone own the Projet RQ-11 Raven and would be willing to let me know their complete set up?