Battery power question

Discussion in 'Boat Tips' started by sds888, Dec 27, 2006.

  1. sds888

    sds888 New Member

    Messages:
    378
    State:
    Townville, South Carolina
    If I am running 110 watts and have a walmart everstart maxx 29 battery I thin it has 875 marine cranking amps and 675 cold cranking amps how long is my battery going to last? Thanks I am bad with math.
    Stephen
     
  2. Clovis

    Clovis New Member

    Messages:
    165
    State:
    Paris Tennessee
    What you need to know is amphours. not cranking amps.

    110 w @ 12 v is about 9.17 amps so take the amp hours of the battery and divide it 10 will give a rough estimate on hours of power for the lights.

    Steve
     

  3. bushwack

    bushwack New Member

    Messages:
    104
    State:
    missouri
    Ask bob,,, he'll tell ya
     
  4. knockdown

    knockdown New Member

    Messages:
    10
    State:
    Kansas
    about 10 hours on a 120 reserve amphour battery but will also depend on wind waves current and such
    knockdown