Hi Brian,
Both times, yes engine sputtered out, then as I tried to bring it to shore, boat died and ceased to move forward. Unplugging the battery then plugging back in - No music tones from the engine.
Charger is just a 680AC Balance charger - no brand - 4 button - up to 6A charge. I only ever charge at 1c and both my battery tester and chargers generally show about 3.3 / 3.4v when I charge them and after runs. I have run Low voltage alarms set at 3.3v as well
Batteries are only a few months old and the 8000mAh is only a few weeks old. I store the batts at 3.8v and full charge to 4.2v only
If I change the 4mm Bullet terminals to 5.5mm and get a 180 - 200A ESC, do you think this would eliminate the issues? Im happy with the speed that the 4s Lipo's produce.
Can you see any issues with the prop and its height at all?