well, I gotta say, I used my Mil. and 5in. lazer yesterday, drilled 60 holes, and came home with half a battery left, and this is with the 5 ah batt. I like it. However, I have always loved my 5 in. and fully believe it is enough, but I hoe hop with a vexi, and if you get a hit, you about have to pull the ducer out of the water, or risk knocking the fish off