I have 1 40a 36v and captain my son in high school tournaments and never even charge when we fish 2 days, but I also have an on the run charger that will charge while I’m running down the river. I will say we have fished in some pretty good wind and not done much running and I’ve never been close to running it down. Mine is an Impulse Lithium. Supposedly a 10 year warranty.
