Location: Eagle Lake Vermilion Bay, Ontario | running big tillers with hydro pumps and lots of accs i have run into probs before also. but it will be the same with any type of boat just worse or most noticable with any mtr like verados which use pumps ( even at trolling speeds under 1500 rpms will draw the batts down by days end as the alternator will not charge good till over 1000-1500 rpms)and any big tillers with the steering pumps.the starting batt should have ONLY the mtr on it. the accs should be on a sep batt and trolling mtr should be on thier own batts. accs batt should be deep cycle and the biggest you can fit. this means a 3 bank charger for 24v and 4 bank for 36 v.
12" big screens can draw up to 13 amps per hr so ya they can drain a starting non deep cycle batt down thru the day unless you are doing alot of long runs inbetween spots.
good luck it can be aggravating but it is solveable.
herbie |
