Battery charging on shore power? Battery switch question.

Plus One

Coming along...
Aug 24, 2011
51
20
Hemet
Name
Jason
Boat
Plus One
Good afternoon,

Sorting out our 2004 24’ Wellcraft. The batteries don’t charge when plugged into shore power unless I have switch set to “All.” I thought they should charge when on shore power regardless of what position the switch was on. Any thoughts?

Thank you,

Jason on Plus One
 

Papa "J"

I Post A Lot But I Can't Edit This
  • May 8, 2003
    5,890
    1,048
    51
    OffShore
    Name
    Jason
    Boat
    Grady White 272 Sailfish
    I would imagine where your battery charger positive cables are run.
    Do you have a battery charger if so what kind
     

    Mike_I

    I Should Upgrade My Account
    May 19, 2006
    1,171
    518
    Irvine
    Name
    Mike_I
    Boat
    Cabo 216 First Love
    It depends on how the charger is connected to the batteries. The charger doesn't need to be wired thru the battery switch.
     
    Last edited:
    • Like
    Reactions: oceanjake

    gecsr1

    Plain Jane Rods...Hobby Rod Builder
    Jul 15, 2005
    14,583
    3,846
    Poway Ca
    Name
    Gary
    Boat
    No Boat Now
    what battery charger is it and how many amps and how many banks will it charge ,
    there maybe a reason it connected to the battery switches instead of the batteries direct....
     
    • Like
    Reactions: MYNomad

    Reel Kahuna

    Member
    Mar 24, 2011
    907
    412
    Lake Camanche, CA
    Name
    Seon
    Boat
    23.5' Navigator Duckworth F150 Yamaha
    Connect the wires from the on board charger directly to each battery. They are probably connected at the battery switch now. The on board charger will not drain the batteries when not plugged in.
    Spot on
    thumbup.gif
    .
     

    sickcat

    Silverback
    Aug 5, 2003
    3,509
    1,544
    64
    LA
    Name
    Kerry
    Boat
    Yellow spot
    No need to run the charger leads to the batteries. Just move one of the leads from the "common" terminal on the switch to the #1 terminal and the other lead to the #2 terminal. Both batteries will charge independently with the switch in the "off" position.
     
    • Like
    Reactions: Plus One

    gecsr1

    Plain Jane Rods...Hobby Rod Builder
    Jul 15, 2005
    14,583
    3,846
    Poway Ca
    Name
    Gary
    Boat
    No Boat Now
    No need to run the charger leads to the batteries. Just move one of the leads from the "common" terminal on the switch to the #1 terminal and the other lead to the #2 terminal. Both batteries will charge independently with the switch in the "off" position.
    well that depends if he has a 2 bank charger or not...