I recently purchased a minn kota endura 30 electric trolling motor for my fish hunter inflatable boat. Minn kota recommends a 60 amp circuit breaker on the + side, is this necessary? They are an extra $40-$60, and being new to using the electric motor I'm unsure if it is needed. I wanted to use the motor this weekend, and I don't think I would be able to get a breaker in time. Thanks.