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Number of batteries

I'm a new boat owner.  I recently purchased a new a 188ob.  Everything is hooked to one battery (no trolling motor).  should the boat have two batteries?  


  • nquirk
    nquirk Member, Moderator Posts: 672 ✭✭✭✭
    No.  Your boat only requires a single battery.  Additional batteries to run trolling motors, etc may be added, but for normal boat operation, a single battery will suffice
    2010 Hurricane SS 188 OB
    2010 Mercury Optimax 200HP / Mercury SS High Five 19P
    2010 Trailmaster SC trailer
  • camphermitage
    camphermitage Member Posts: 5
  • MikeP
    MikeP Member Posts: 20 ✭✭
    Good idea to have a second battery on a switch though.  If you hang out at a sandbar or something and run your battery down, sure is nice to flip a switch over to a fresh battery!
    2014 SS 231 w/ Yamaha F250
  • powerhouse
    powerhouse Member Posts: 39 ✭✭
    I agree with MikeP.  I always run two batteries on a switch.  I run engine, stereo and lights together.  So I would use battery 1 for the first half of the day and usually battery 2 the second half, sometimes I only use one battery all day but both are completely charged the night before.
    2002 FD196F/Yamaha 115