I've looked through many posts but still have a few questions....
I've been flying a small quadcopter for a while and I plan on buying my first Arducopter in the next few days. So far I think I might go with the following setup.
- APM 2.0, no GPS
- LEA-6 GPS
- ArduCopter Hexa 3DR Frame + Motors Kit
- 880 kV motors
- 10x47 props
- 433 Mhz 3DR Telemetry kit
- Optical flow sensor
- MB1260 XL Max-Sonar
- 3DR Sonar Mount
- What kind of batteries should i use? I'd like to get at least 10 minutes of flight time. I'm not sure if I should use a 4s or 3s with the stock ESC's.
- Will a 5 channel radio work? I plan on using a joystick through mission planner as my primary manual control and I already have a dx5e with an ar500 receiver that I could use as backup.
- Should I buy a additional BEC to power the APM?
-Any tips for this setup?
I would say to go with the 4S battery, the ESC's I get in the HexaCopter kits from 3DR say they will work with 6-16.8V's. I would try and aim for a battery about 5000 mah with at least a 30c rate.
I would use an extra BEC and not the one on the ESC's, there will be a lot to power for the ESC's BEC.
I will leave someone else to pass comment on the radio / joystick option, I have not used that radio before.....
what about using two of these connected in parallel?
The hard case batteries are used mainly in cars, there is another point here with the batteries and the weights, you will only get about 1/3 extra flight time (at best) for two batteries being used together, the reason for this is you are lifting the extra weight, so using more energy to lift the "dead" weight of the batteries, in an ideal world there would be a LiPo which tips the scales at 200 grams and has 10000 Mah, however these are not yet made, I'm sure you will see many people looking to add additional flight time, adding additional batteries is not the best way to achieve this.... think of a dog chasing its tail!
The best pack to use is the lightest one you can find with the right level of power for your copter, so you have no additional weight to lift over and above what is needed.