I have a 915 Wh battery. I’ve never run it down past 60% charge but extrapolating I’d say I get 5 hrs run time at 2/3 throttle, cruising at about 3.5 kts. Full throttle cuts run time significantly and only gives you another .5 kt. Overall, I’m very satisfied. It is so light and quiet! BTW your boats looking great. You must be excited to launch. Scott