Do any professional fishermen use your battery?

Yes a number of them and quite a few guides. Gary Roach & Mark Martin have been using the Thermoil battery for about 4 or 5 years until the year 2000. Reason being, they had a large battery company approach them and offered them a lot more than I could. It’s the same old story, I can’t compete with the big manufacturers but just ask them how they liked the Thermoil battery.