Dual Battery Switches
#11
Re: Dual Battery Switches
here...maybe this pic will help better explain how they are wired. This way you can see how the batts are connected on the back side of the switch....and how the battery is being selected when you switch between 1/2/all
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-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
Last edited by Wally; 12-28-2006 at 02:19 PM.
#13
Re: Dual Battery Switches
Great!
Picture is worth a 1000 words.
So if it were hooked up in reverse, it would still do the same functions. Just gotta think of pushing instead of pulling.
If both switches are in the same position,(on either situation) that would mean both motors are trying to charge that 1 battery???? Is that a bad thing?
I always keep 1 switch set on '1', other on '2', unless I have a dead battery, then put both on 'both', then switch back afterstarted.
Thanks
EDITED>>>>>>>>>>
I GOT IT. Days off work create too much freee time.
Using the above picture with Port Engine1, Switch1 in #1 Postion(1P), and Battery1 and then same for other side, E2, S2,B2, ... except switch in #2 position (2P).
If B1 fails to start E1, you just change S1 to P2
BUT, if wired the other way and B1 doesn't start E1, you have to change the OTHER SWITCH,... S2 to P1
Right?
Picture is worth a 1000 words.
So if it were hooked up in reverse, it would still do the same functions. Just gotta think of pushing instead of pulling.
If both switches are in the same position,(on either situation) that would mean both motors are trying to charge that 1 battery???? Is that a bad thing?
I always keep 1 switch set on '1', other on '2', unless I have a dead battery, then put both on 'both', then switch back afterstarted.
Thanks
EDITED>>>>>>>>>>
I GOT IT. Days off work create too much freee time.
Using the above picture with Port Engine1, Switch1 in #1 Postion(1P), and Battery1 and then same for other side, E2, S2,B2, ... except switch in #2 position (2P).
If B1 fails to start E1, you just change S1 to P2
BUT, if wired the other way and B1 doesn't start E1, you have to change the OTHER SWITCH,... S2 to P1
Right?
Last edited by US1 Fountain; 12-23-2004 at 12:36 PM.
#14
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Re: Dual Battery Switches
Good job Wally.... USA... I suggest even if you have a dead battery... the only time to have the switch on "both" is when the batteries are low and you need energy from both to start the motors. The charging systems work best when one alternator is charging one battery. The regulators get "confused" when there is a higher voltage coming back at them. If you have both alternators connected... one will override the weaker and that alternator will "sense" that the battery is charged and will not put out any power. Accessory batteries that aren't used for starting but are used for cabin lighting and other things are usually seperated from the other batteries by a big diode that only lets the electricity flow one way.
#15
Re: Dual Battery Switches
Originally Posted by US1 Fountain
Great!
Picture is worth a 1000 words.
So if it were hooked up in reverse, it would still do the same functions. Just gotta think of pushing instead of pulling.
If both switches are in the same position,(on either situation) that would mean both motors are trying to charge that 1 battery???? Is that a bad thing?
I always keep 1 switch set on '1', other on '2', unless I have a dead battery, then put both on 'both', then switch back afterstarted.
Thanks
EDITED>>>>>>>>>>
I GOT IT. Days off work create too much freee time.
Using the above picture with Port Engine1, Switch1 in #1 Postion(1P), and Battery1 and then same for other side, E2, S2,B2, ... except switch in #2 position (2P).
If B1 fails to start E1, you just change S1 to P2
BUT, if wired the other way and B1 doesn't start E1, you have to change the OTHER SWITCH,... S2 to P1
Right?
Picture is worth a 1000 words.
So if it were hooked up in reverse, it would still do the same functions. Just gotta think of pushing instead of pulling.
If both switches are in the same position,(on either situation) that would mean both motors are trying to charge that 1 battery???? Is that a bad thing?
I always keep 1 switch set on '1', other on '2', unless I have a dead battery, then put both on 'both', then switch back afterstarted.
Thanks
EDITED>>>>>>>>>>
I GOT IT. Days off work create too much freee time.
Using the above picture with Port Engine1, Switch1 in #1 Postion(1P), and Battery1 and then same for other side, E2, S2,B2, ... except switch in #2 position (2P).
If B1 fails to start E1, you just change S1 to P2
BUT, if wired the other way and B1 doesn't start E1, you have to change the OTHER SWITCH,... S2 to P1
Right?
__________________
-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
-Wally
Money can't buy happiness, but it can buy horsepower. And I've never seen a sad person hauling a$$!
#16
Re: Dual Battery Switches
I like the way mine is set up. Three batteries, one starts Port, two starts stbd, everything else is hooked to #3. Three way isolator means any engine charges all batteries. No switches (which freaked me at first). Never have a dead battery and if you kill the house battery, just start an engine.
#17
VIP Member
VIP Member
Re: Dual Battery Switches
Just be careful and check with the manufacturer of your boat. Cigarettes are set up so that each switch controls that battery for that engine. Hence, on my boat, both switches are to be set to "1". That way, one battery and one alternator per engine. Running one switch on 1 and the other on 2 (on my boat) is using one battery for both engines. Setting the switches on "both" will potentially fry your alternators!!!
Craig
Craig
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Happily retired and living in Heavens waiting room.
#18
Platinum Member
Platinum Member
Re: Dual Battery Switches
Originally Posted by craig223
Just be careful and check with the manufacturer of your boat. Cigarettes are set up so that each switch controls that battery for that engine. Hence, on my boat, both switches are to be set to "1". That way, one battery and one alternator per engine. Running one switch on 1 and the other on 2 (on my boat) is using one battery for both engines. Setting the switches on "both" will potentially fry your alternators!!!
Craig
Craig