Battery/Battery switches

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webegonebeachin

Cadet
Joined
Nov 14, 2004
Messages
22
I have a Bayliner 2550 with dual battries and a switch.Does the onboard charger and or the alternator charge the battries all the time?? Does the switch have to be on "ALL" for both battries to charge?? If its on #1,does the other battery not get a charge?? Many questions,no answers. Thanx
 
V

vipzach

Lieutenant
Joined
Feb 15, 2005
Messages
1,283
Re: Battery/Battery switches

The "all" should charge both batteries when the boat is running, if it is the 1 position it will not charge the other battery. That is the point of the switch, so that when you are sitting somewhere or trolling you don't kill the starting battery. You just have to remember to switch it after the boat is started or turned off. <br />The onboard charger will depend on what kind it is and how it is wired up.
 
R

Ralph 123

Captain
Joined
Jun 24, 2003
Messages
3,983
Re: Battery/Battery switches

Depends how it is wired.<br /><br />Usually the on-board charger bypasses the switch and is hooked up to batteries directly. If it is a dual bank charger you'll see leads going directly to each battery. If it is a single bank charger, it may only go to one battery in which case only one battery will be charged unless you put the battery switch in the "all" position.<br /><br />The Alternator will charge depending on the position of the switch. If it is in the "1" position, battery "1" gets charged. If in position "2" then only batter "2" and finally, if in the "all" position they both get charged.
 
C

cuzner

Senior Chief Petty Officer
Joined
Feb 14, 2004
Messages
771
Re: Battery/Battery switches

If your charger is a 2 bank charger, it will charge both... doesn't matter where the switch is. You can easily tell, if you have + and - wires going to both batteries( 4 wires all together). <br /> Jim
 
JB

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Battery/Battery switches

Moving to Electrics
 
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