Originally Posted by
kcobra
I like the hard case (as long as it's not to big) and the 7.4v selectable voltage. Only gotcha I see is the specs show the lowest input voltage being a 3s pack. If that is true it will not work with those using an external BEC in short course.
I liked it too for the selectable features and the case. Good Catch on the 3S part...I'm not in short course, but I may run 2S to cut the power.
One thing I'm still a bit confused on is how to know how much current my BEC needs to support. Seems the most common are 3A, 5A, or 10A. My truck is a savage running 4s, 2150kv 4074 motor, with the hobbywing 150A esc. It only has one servo the hitec HS-645MG for steering.
Am I correct in the way I should size the BEC is to add up all the servos/devices that would need power and determine the max current they'd need? If so my one servo would not be anywhere near 3A would it? Even if I upgraded to a High Voltage and High Torque one, I don't know that it would ever go over 3A would it?
I ask this because I'm thinking of going with one of the $5 turnigy ones that's 3 or 5A and up to 6V. (I know if I get a HV servo I'd need a "bigger" BEC to supply the higher voltage).