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  • Batteries relocated in Cabin?

    Does anyone have a photograph of how and where they relocated their batteries in their walk around? My Mako 210 has both in the starboard most aft, and the boat lists slightly right while stopped. More importantly, I'm considering moving them into the cabin to free up some weight for a possible repower heavier four stroke.

    Should the be relocated in battery boxes as far forward as possible? Im guessing I would need my tabs much less to cut through the chop, however, on calm water days, I would hate to have an issue with bow steering. That can be scary. Is it better to mount the batteries against the aft part of the cabin, by the bulkhead. The only problem then would be entrance into and out of the cabin you'd probably have to be stepping on the battery boxes themselves.

    Ideas?

  • #2
    First off what type batteries do you have? If they are wet cell then you need to be concerned with good ventilation. If they are AGM then mounting them in a confined space is less critical. On our 250 which has a cabinet sump I mounted the motor batteries side by side on 3 uchannel and plywood shelf. The house battery is mounted on another shelf which spans the sump. We gained almost 11/2 on the waterline. You can see pics in the project forum under Yet another 250.
    Keyman[br]Paoli, PA

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    • #3
      When i had my 210 i had the same issue that was worse when I upgraded to 27s. I always thought a good spot for them would be right inside the cabin under the electronics behind the door but dont know if thats possible. Ive had 2 people in the cabin while underway, flat calm but downpouring, and didnt notice any bow steer so i dont think thatll be an issue.
      *on the hunt for a 241/261*[br]1989 Mako 210 (sold and missed)

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      • #4
        When i had my 210 i had the same issue that was worse when I upgraded to 27s. I always thought a good spot for them would be right inside the cabin under the electronics behind the door but dont know if thats possible. Ive had 2 people in the cabin while underway, flat calm but downpouring, and didnt notice any bow steer so i dont think thatll be an issue.
        *on the hunt for a 241/261*[br]1989 Mako 210 (sold and missed)

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        • #5
          When i had my 210 i had the same issue that was worse when I upgraded to 27s. I always thought a good spot for them would be right inside the cabin under the electronics behind the door but dont know if thats possible. Ive had 2 people in the cabin while underway, flat calm but downpouring, and didnt notice any bow steer so i dont think thatll be an issue.
          *on the hunt for a 241/261*[br]1989 Mako 210 (sold and missed)

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          • #6
            My current batteries are DEKA brand Flooded series. Regardless, I would upgrade the batteries to new to complete the system. Looks like I have some homework on batt type and measuring to do before commiting. But I think this would really help raise the scuppers, regardless of which repower I go with. Leaning towards the mercury due to weight but not too excited on the wait times. Thanks guys.

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            • #7
              In my 248 walk-around I plan to locate battery(s) in a box that serves as the step down into the cabin. Besides counterbalancing the 250 hp 4-stroke on a bracket, this places the power source close to the distribution panel and makes for a shorter run to the windlass.
              \"Anything seems possible when you don\'t know what you\'re doing.\"

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              • #8
                In my 248 walk-around I plan to locate battery(s) in a box that serves as the step down into the cabin. Besides counterbalancing the 250 hp 4-stroke on a bracket, this places the power source close to the distribution panel and makes for a shorter run to the windlass.
                \"Anything seems possible when you don\'t know what you\'re doing.\"

                Comment


                • #9
                  Battery relocate has been done a bunch of times here. Google foo is your friend. Mine is in my signature line....if it's still working.
                  \'79 20 175 \'rude[br]Sacramento, CA (Deep behind enemy lines!!)[br]...something fishy this way comes...[br]http://www.westernsteelcouncil.org[br]http://classicmako.com/forum/topic.asp?TOPIC_ID=13979

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                  • #10
                    Battery relocate has been done a bunch of times here. Google foo is your friend. Mine is in my signature line....if it's still working.
                    \'79 20 175 \'rude[br]Sacramento, CA (Deep behind enemy lines!!)[br]...something fishy this way comes...[br]http://www.westernsteelcouncil.org[br]http://classicmako.com/forum/topic.asp?TOPIC_ID=13979

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                    • #11
                      Battery relocate has been done a bunch of times here. Google foo is your friend. Mine is in my signature line....if it's still working.
                      \'79 20 175 \'rude[br]Sacramento, CA (Deep behind enemy lines!!)[br]...something fishy this way comes...[br]http://www.westernsteelcouncil.org[br]http://classicmako.com/forum/topic.asp?TOPIC_ID=13979

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                      • #12
                        I didnt gain much when I relocated my batteries but any gain is better than no gain. I have a 238 and I put my batteries on starboard side in the cabin. Im currently in remodel mode so I am thinking of putting them under the step. This is as long as I can have easy access

                        Consider upgrading batteries to a maybe a group 27 for start and group 31 for house
                        1984 Mako 238 WA [br]2015 Suzuki 250 APX[br]Central PA/OCMD[br]http://www.classicmako.com/forum/topic.asp?TOPIC_ID=35081[br]

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                        • #13
                          I didnt gain much when I relocated my batteries but any gain is better than no gain. I have a 238 and I put my batteries on starboard side in the cabin. Im currently in remodel mode so I am thinking of putting them under the step. This is as long as I can have easy access

                          Consider upgrading batteries to a maybe a group 27 for start and group 31 for house
                          1984 Mako 238 WA [br]2015 Suzuki 250 APX[br]Central PA/OCMD[br]http://www.classicmako.com/forum/topic.asp?TOPIC_ID=35081[br]

                          Comment

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