Went out on Lanier today for about 8 hrs in my 05 PT175,me not knowing there was a wind advisery out.I was striper fishing which ment doing a good bit of trolling,mostly on level 4 & 5 due to the wind....I normally can fish and troll all day on 3 sometimes 4 and my trolling motor battery never ever flounders,but today it got very weak @ the end after about 6 hrs...I had a factory 2 bank Guest on board but put it on my Nitro and put on a BPS 2 Bank on......Question.....Was that a bad move to swap the chargers and am i lucky to have gotten out of my batt what i got due to wind....Do i need to put the guest back on the 175,i use it more than the Nitro and what i was wondering was if I used 1 of the Everstart Marine Maxx big battries for trolling on each boat and then used the trolling battery on my 175 as the starting batt on my Nitro..I only run 2 batt,s on each..... Wouldnt i get a longer reserve out of the 1 big one and cut back on weight than having 2 trolling batteries....Or Just swap chargers and use original set up......Sorry for the long post...