[BrianG]

I don't get what the fuss is all about all of a sudden. A small problem with some MMM BECs and suddenly it seems people are questioning everything they know about BL in general. The rules haven't changed with just a new ESC.

Amperage draw is solely dependant on the motor, vehicle you are using it in, and supply voltage.

Overkill I know, but for the sake of example, you could conceivably install the MMM in a Rustler with a light-duty motor, geared conservatively and you wouldn't need a large battery. Current flow is determined by the load and supply voltage, not the ESC. Period. The ESC is simply a "controlled energy funnel". If the MMM is used in such a way, it will obviously never have to work very hard.

OTOH, if used on a large heavy vehicle like a 5th scale, geared high, you will need batteries capable of high energy output, so high voltage AND high capacity AND high C rating.