Thanks for this valuable information but I think 1.5-3 min. is very short running time... is this normal in electric boats or I can get more time with different setup.

Please another questions:
what is expected speed I will get with Neu 1527/1.5Y and 10S?
what is charging time if I will use quality charger?
can I charge them as soon as they get boat from water or I should leave then until they achieve normal temp.?
can I use many packs one after one other or motor will be damage.