This way when you are running around the lake the big motor.with a higher output alternator.charges both your main and kicker starting batteries up. Then the outputs off the isolator go to each starting battery. 2 bank isolator off the big motors alternator output. Take the deep cycle you now have for a starting battery and put it in parallel with the existing trolling motor battery and buy an on board charger for them. In my opinion, as keram has pointed out, you are asking for trouble sooner or later trying to do them all. If you really feel you need to charge that electric trolling motor battery then buy the 3 bank isolator. What I would do is buy a new pair of starting battery to use on your main motor and kicker and buy one of the isolators that Terry pointed out. We don't know how much battery room you have in the boat.Įach motor should have it's own battery.and the gas motors should have STARTING batteries. It's hard to help in text Emil and why I've left this alone. My batteries are indentical.both are same brand name,same age and both are deep cycle. I also bought (not installed yet) 9.9HP Yamaha Hight Thrust kicker for it that I'd like to use as charging motor while trolling, but also to use the main one (more powerful alternator?) to charge batteries while going full speed to the fishing spot.as sometime that fishing spot maybe good 45-60 min away. The electric trolling motor is 12V 55 Lbs thrust. You can fish all weekend and instead of the isolator get an onboard charger A starting battery and trolling motor battery are quite different in amp ratings. If the trolling motor has 24V set up option defintitely go that route and forget tying into the starting battery with an isolator. You're running a 115HP which would indicate a 17+ft boat and wondering what lb trolling motor. Ice Fisherman Edited Decemby icefishermanĬan't remember fully what boat you bought and what trolling motor. I'd like to connect everything but the electric trolling motor to the main A battery (as long as it can hande it) and only the electric trolling motor to the battery B.this way I'll keep charging battery A while I am using it (with the main motor while going to the spot and later on with the kicker while trolling) and battery B will always be at or near 100% charge as I rarely will use the trolling motor. When it's all set and one I'll have two electric riggers, two radios, one fishfinder, the bilge pump, the electric trolling motor and what ever other instruments on the dash. Just want to make sure I don't mess it all up and connect everything the right way.Īlso how many Amps switch or isolator do you think I'll need? It gets a bit complicated when two motors get involved.I pending on the setup I may have to shut off engine one before starting engine 2.? The problem is how EXACTLY do I wire it all so both alternators are protected and I don't fry the kicker alternator.at the same time I could charge either battery or both at the same time from either motor. As you suggest, you'll have the house battery connected to both Argofets.I've seen a lot of setups on the web but could not find wiring diagram for my situation (two motors where either one is charging either/or both batteries).īut from what I've seen I have a feeling I need not only isolator but also one of those guys: With 2 alternators and a 3 battery bank setup you'll need to purchase a two 1-2 Argofets. Hi Bruce, the Victron Argofet battery isolator doesn't have a 2 input (i.e. Do I need to use two isolators or does Argfet make one to handle two alternators? If I use two isolators, is OK to connect the house battery bank to the output on both isolators? Thank you. I've looked at your recommendations for the Argofet isolator but I do not see one with two alternator inputs and three battery banks. I have had issues with the isolator where it stops putting a charge into the house bank but still puts a charge into each starting battery after being at anchor when the house batteries are down. I currently have a Sure Power isolator that has connections for three batteries and two alternators. I have twin diesel engines, a starting battery for each engine and a house battery bank. Greetings, I'm reviewing your videos on Battery Chargers and Combiners. Battery Isolator With Two Alternators Question:
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