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battery setup opinions...

Old 10-09-2011, 03:52 PM
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Hey Guys:

just mulling around some design considerations for the spring. I'm going to redesign and wire the battery setup in the Rampage.

Currently I have what I would call over kill....5 batteries...
1- for each engine 2 for house and one dedicated to the genset.
I'd like to go to 3 total. I agree with the one isolated for the genset..thats my ace in the hole. in the event of a dead start battery, the gen can run the charger that can get me started..

I think I want to go with one larger house and one larger starting battery...

I will be changing all high draw lights to LED ( spreaders and anchor) to lighten load while fishing at night..

thinking 2 group 31's and a 24 for the genset...

Battery cables are grossly undersized and poorly terminated...I figure i could cut down the cabling and switching as well as lose 2 batteries and the maintenance of such...

any ideas? I'm liking the blue sea products.. Any issues losing the second starting battery...

Oh BTW I have a two bank charger
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Old 10-09-2011, 06:38 PM
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I wouldnt call 5 batteries overkill, I have 6. I think the best set up is 1 battery per engine, 1 battery for the gen set and then depending on your house load, 1 or 2 batteries. I prefer AGM style batteries, group 31 if you have the room. All batteries are isolated, but can be cross connected with battery switches if needed for emergency starting. All engine batteries have an ACR (VSR) on them to charge the remaining batteries during run time. I have low power charger to maintain all batteries at the dock and then a high power Charles Charger off the GenSet for the house batteries for night time use. This gives you one of the better safety margins by isolating starting and house batteries and should be enough power to handle all of you loads. So with you set up, you could go from 5 to 4 batteries.
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Old 10-10-2011, 08:15 AM
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Do you really think there is need for one battery for each motor. I'm thinking I could always jump in the house bank if I had a starting issue...and with the genset running I could charge on the fly...really want to lose the weight and the space...I have to layout a plan and see what the cost/return ratio is.
thanks for the input.
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Old 10-10-2011, 11:49 AM
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What motors?
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Old 10-10-2011, 12:52 PM
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im sorry ..." engines"
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Old 10-10-2011, 04:40 PM
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For example, if the engines are Verados, it is Mandatory, from the factory, that each engine has its own battery. This is mainly due to the high demand of the power steering pump, but also because each engines alternator wants to see a battery to charge. So yes, I definitely think both engines should have a separate battery. Some engines require it, others may be optional, but I think it is a good practice that each engine has its own battery.
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