1 battery, 2 motors
01-09-2011, 05:23 PM
#1
Charter Member
1 battery, 2 motors
Can 1 starting battery be used for 2 motors?
1 motor will be used to keep it charged, while the alt. wire off the 2nd motor will be used to charge 2 house batteries. The 2house and starting batteries will be isolated from each other.
Just want to make sure the starting battery motor alt doesn't get fried when the 2nd motor is started.
Thanks.
1 motor will be used to keep it charged, while the alt. wire off the 2nd motor will be used to charge 2 house batteries. The 2house and starting batteries will be isolated from each other.
Just want to make sure the starting battery motor alt doesn't get fried when the 2nd motor is started.
Thanks.
__________________
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
01-10-2011, 03:34 PM
#2
hmmmm thats an interesting question and it got me thinking......at first i thought no cause the amp load on the Alt could fry it....then i thought....thats exactly whats going on when you jump start another car! You are putting another load on you starting battery and alt and its no problem! So as long as you isolate the second alternator it should be no problem at all!
__________________
-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
01-10-2011, 03:56 PM
#3
Registered
iTrader: (4)
Not a bad idea, I am assuming you are triyng to do this for accessory purposes?
The only porblem I see is common ground. I would assume you are removing all wires from the starter post to isolate the second engine. Now your electronics for that engine are going to be running off the house battery. Ign, dash, volt meter ect. These are grounded off your engine, but your engine will need to have a good ground to the start battery in order to start.
I have never seen in done, and I am not an electrical engineer....however I know why you want to do it
And to answer your question, the alt should be just fine.
The only porblem I see is common ground. I would assume you are removing all wires from the starter post to isolate the second engine. Now your electronics for that engine are going to be running off the house battery. Ign, dash, volt meter ect. These are grounded off your engine, but your engine will need to have a good ground to the start battery in order to start.
I have never seen in done, and I am not an electrical engineer....however I know why you want to do it
And to answer your question, the alt should be just fine.
01-10-2011, 05:19 PM
#4
This for my cruiser.
I see no reason for 2 dedicated starting batteries just to start the motors. Battery switches allow for emergency switching if needed.
As it is now, I have 2 deepcyle batteries that do both start/house. I want the sep battery just for starting so I don't have to worry about dead batteries for nites out on the water. lites, tunes, invertor, refridge, electric head, etc....
I see no reason for 2 dedicated starting batteries just to start the motors. Battery switches allow for emergency switching if needed.
As it is now, I have 2 deepcyle batteries that do both start/house. I want the sep battery just for starting so I don't have to worry about dead batteries for nites out on the water. lites, tunes, invertor, refridge, electric head, etc....
__________________
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
01-10-2011, 05:23 PM
#5
Not a bad idea, I am assuming you are triyng to do this for accessory purposes?
The only porblem I see is common ground. I would assume you are removing all wires from the starter post to isolate the second engine. Now your electronics for that engine are going to be running off the house battery. Ign, dash, volt meter ect. These are grounded off your engine, but your engine will need to have a good ground to the start battery in order to start.
I have never seen in done, and I am not an electrical engineer....however I know why you want to do it
And to answer your question, the alt should be just fine.
The only porblem I see is common ground. I would assume you are removing all wires from the starter post to isolate the second engine. Now your electronics for that engine are going to be running off the house battery. Ign, dash, volt meter ect. These are grounded off your engine, but your engine will need to have a good ground to the start battery in order to start.
I have never seen in done, and I am not an electrical engineer....however I know why you want to do it
And to answer your question, the alt should be just fine.
__________________
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
Last edited by US1 Fountain; 01-10-2011 at 05:33 PM.
01-10-2011, 05:26 PM
#6
Registered
iTrader: (3)
Can 1 starting battery be used for 2 motors?
1 motor will be used to keep it charged, while the alt. wire off the 2nd motor will be used to charge 2 house batteries. The 2house and starting batteries will be isolated from each other.
Just want to make sure the starting battery motor alt doesn't get fried when the 2nd motor is started.
Thanks.
1 motor will be used to keep it charged, while the alt. wire off the 2nd motor will be used to charge 2 house batteries. The 2house and starting batteries will be isolated from each other.
Just want to make sure the starting battery motor alt doesn't get fried when the 2nd motor is started.
Thanks.
