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  1. #1

    Default 1984 115hp and i wanna use Deep Cycle

    hi I have a 115 1984 engine and I wanted to use my deep cycle battery to run on it.. but I seen now off the page for replacement rectifiers/voltage regulator I can not use a deep cycle battery.. why not

    and the I have the mini kota MC2 dc battery charger wanna use with..

    so if I cant use it... can I use deep cycle on my 1987 mercy 200hp outboard.?? and If not what my options
    and to charge a deep cycle so I can use it for my trolling motor


    and is there a way to mount an alternator to the flywheel teeth.. so I can charge like a car engine

  2. #2

    Default Re: 1984 115hp and i wanna use Deep Cycle

    and I'm guessing deep cycle is a dry cell
    as it states"

    Do NOT use a Maintenance Free, AGM, or Dry Cell Battery with this type of Regulator/Rectifier

    http://www.marineengine.com/newparts...num=OMC0395204

  3. #3

    Default Re: 1984 115hp and i wanna use Deep Cycle

    Deep cycles are designed to be heavily discharged before recharging. So, as volts go down amperage draw goes up. I think this is probably the reason why deep cycle batteries are not to be used, as trying to start a motor on a deeply discharged battery might fry the regulator/rectifier.

  4. #4

    Default Re: 1984 115hp and i wanna use Deep Cycle

    ah ok i was told i could use a deep cycle as its a flooded cell battery

    but not a AGM or dry cell battery or maintance free.. not sure what a dry cell is.. dont know how they damage the rectifier..

  5. #5
    Join Date
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    Default Re: 1984 115hp and i wanna use Deep Cycle

    My first thought was a Harley shipped on the Titanic!
    We occasionally have questions. If you fail to answer, it may affect ours.

  6. #6

    Default Re: 1984 115hp and i wanna use Deep Cycle

    lol whats that supposed to mean

  7. #7
    Join Date
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    Default Re: 1984 115hp and i wanna use Deep Cycle

    Quote Originally Posted by comet424 View Post
    lol whats that supposed to mean
    A Harley Davidson, still in the Titanic's hold, is surely a deep cycle!
    We occasionally have questions. If you fail to answer, it may affect ours.

  8. #8

    Default Re: 1984 115hp and i wanna use Deep Cycle

    Quote Originally Posted by joereeves View Post
    A Harley Davidson, still in the Titanic's hold, is surely a deep cycle!
    lol never heard that before thats funny
    thanks (:

  9. #9
    Join Date
    Dec 2015
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    Default Re: 1984 115hp and i wanna use Deep Cycle

    You can use a maintenance free battery but you must be running high amp draw appliances when the engine is running to use the extra voltage produced. If you keep the charging voltage below 15 volts it will be just fine.
    It takes a nickle to go first class!
    If it aint broke dont fix it!!

  10. #10

    Default Re: 1984 115hp and i wanna use Deep Cycle

    Quote Originally Posted by kimcrwbr1 View Post
    You can use a maintenance free battery but you must be running high amp draw appliances when the engine is running to use the extra voltage produced. If you keep the charging voltage below 15 volts it will be just fine.
    oh so maintance free batteries when full doesnt signal the rectifier to stop charging and thats how it burns out the rectifer..
    and thought the charging voltage is always under 15 at a 14.4v with the voltage regulator/rectifier isnt that what thats for?

  11. #11
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    Default Re: 1984 115hp and i wanna use Deep Cycle

    Installing a volt meter is always a good idea that way you can monitor the charging system real time. In most cases you can shut it down before it turns into a real expensive repair or know when to get the hell off the water.
    It takes a nickle to go first class!
    If it aint broke dont fix it!!

  12. #12

    Default Re: 1984 115hp and i wanna use Deep Cycle

    Quote Originally Posted by kimcrwbr1 View Post
    Installing a volt meter is always a good idea that way you can monitor the charging system real time. In most cases you can shut it down before it turns into a real expensive repair or know when to get the hell off the water.
    ya next year ill probably get a Faira volt meter gauge for the dash. least ill know if its charging or discharging etc
    for now its just a mulitimeter lol

  13. #13
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    Dec 2015
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    Default Re: 1984 115hp and i wanna use Deep Cycle

    Be a good winter project you can add a fuse block for adding appliances easily. Maybe pull a house circuit if not present to keep accys separate from the ignition.
    It takes a nickle to go first class!
    If it aint broke dont fix it!!

  14. #14

    Default Re: 1984 115hp and i wanna use Deep Cycle

    Quote Originally Posted by kimcrwbr1 View Post
    Be a good winter project you can add a fuse block for adding appliances easily. Maybe pull a house circuit if not present to keep accys separate from the ignition.
    what you mean pull a house circuit..

    it has a 6 fuse panel on the dash i think for lights and bilge pump may add a radio

    the fishing boat i have has messy wiring but thats because i didnt wanna shorten the cables so i tried to coil up best i can lol and for fuse panel since i had to work upside down and in tight spot couldnt do a nice wiring job neck was killing me... probably would been better if i ripped out all the wiring and started from scratch... fixing old boats and bad wiring ahead of time i just made more of a mess lol

  15. #15
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    Default Re: 1984 115hp and i wanna use Deep Cycle

    A house circuit is two heavy guage wires directly to the battery from the fuse block and grounding bar. You want a fuse at the battery for positive to the master power switch and fuse block. Do your lights work with the ignition switch? Spend the time to clean up all the wiring so you dont have to mess with it out there.
    It takes a nickle to go first class!
    If it aint broke dont fix it!!

  16. #16

    Default Re: 1984 115hp and i wanna use Deep Cycle

    Quote Originally Posted by kimcrwbr1 View Post
    A house circuit is two heavy guage wires directly to the battery from the fuse block and grounding bar. You want a fuse at the battery for positive to the master power switch and fuse block. Do your lights work with the ignition switch? Spend the time to clean up all the wiring so you dont have to mess with it out there.
    dash lights and front and back lights work without the inigiton switch

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