Ah…Bob, there we have it. Using that combination of battery (4,3 A/hr CAPACITY) and 7.2V voltage, in a boat with a speed 280 motor driving a 25mm prop it might be 3 amps or so (3 amps being taken out the battery, that is)
BUT if this battery was to be put in, say, my hovervan (speed 300 motor plus a 540 motor) it would have to give approx 10A,
THERE AGAIN…in the Ecranoplan we may well see 20+A being consumed.
It all depends on the motor that is connected to the battery. NOT FORGETTING most batteries have a recomended max output or draw..in most cases I think for Nimh type sub C cells, it is usually around 35A or so.
This is one of the reasons really fast boats are using Lipo batts, they can discharge a lot more amps.
Ashley