Ya, I saved about 100 lbs, is my boat faster because of it, don’t think so. Take off is slightly quicker, although my boat always had a quick, low bow rise takeoff. Also had to lower my engine height setting from my last boat apx 1/2″. Last boat was the same as current one. My new boat is apx 1 mph faster than last so maybe it is slightly faster. The main gain is the massive increase in battery power and never having to worry about running out of power. I actually had had a 5 bank charger instead of the original 4 bank put in my new boat, along with 5 battery trays incase I wanted to go with a house battery for my new electronics. So far I am still running 4 batteries, but if I decide to go with 5, I will still be 60 to 70 lbs lighter than the standard 4 battery setup.
These new batteries are just beyond impressive, and even though you really don’t need it, their app showing everything going on about the batteries is just fantastic. You can monitor everything, charge %, current draw, and battery health.