Friends please assist...
After parsing pages and pages of forum in search of an answer I finally feel I must ask for experienced opinion...
A common problem no doubt: Large 6s Hex; MN4014-9 motors; 16 inch props; Carrying a Flir thermal camera (Need I say I am hesitant to allow the 180A Attopilot to be a possible single point of failure!)
Would installing a current divider system to improve margin of safety be feasible? I propose one of the following:
1) In parallel over the Attopilot install an identical resistor arrangment as found on the Attopilot 180A - A 2watt resistor if I am not mistaken (availability of these??)
> This would be a cheap solution
> Would simply divide the current in half
> The voltage readings should be unaffected;
> When setting up MP one would specify a battery pack of half the real capacity.
2) If finding identical resistors to those in the Attopilot is going to be a problem, install a second 180A Attopilot in parallel
> This second Attopilot will not be connected to the flight controller
> Otherwise same as for the above.
> A bit of a waste...
Alternatively could one not simply install low resistance shunts in parallel to a 6s power module?
3) The HKPilot32 10s 90A power module for example
> If one where to know the resting resistance of this module a appropriate shunts could be used to allow just 1/4 of the current to pass via the power module and the remainder via the low resistance shunts.
> This appeals to me as I could save carrying one extra BEC, AttoPilot and cables.
Has anyone had any success with shunting current to improve the safety margin? / To allow the use of standard power modules on larger machines?
***Before somone mentions that we will never need more than 180A ---- If chasing a cable-car at near max throttle for over 1000m gain in altitude over 4min.... We will need exactly that amount of current!
Many thanks in advance.