If i had a bunch of big amp dewalt/milwaukee batteries it might be worth a try.But always check the rating of every unit to be powered with it just to make sure.Dont know why anyone would want to purchase these batteries to build there setup,only advantage is canoe or really small boat with no room.You can get a bigger starting battery,lithium,wetcell or agm.Add a electronics battery up front alot cheaper with good results also.I have been helping install electronics on boats since march 2022 and we have only done one drill battery setup.We have done away with drill battery setups and either do an electronics battery or a bigger start battery setup to replace them.