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 ouboard alternator		  New Topic  Topic Locked
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mqp
1st Mate

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USA
46 Posts
Initially Posted - 07/08/2002 :  10:25:10  Show Profile
I have two batteries and want to charge them with my outboard alternator. Do I have to get an isolator or can I just hook the alternator to both batteries in parallel?
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Douglas
Master Marine Consultant

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1595 Posts
Response Posted - 07/08/2002 :  11:48:08  Show Profile  Visit Douglas's Homepage
You need to use an isolator. Not only should you charge seperatly your system should be set up so the batteries can opperate independantly of each other. It would be best to check out a book from your library than for me to try and explain it all in detail. Such things as Amp rating of the small generator on the outboard not being able to cope with two batteries and the posability of cooking the system due to overworking it. Protecting one battery from the other in the event one develops a bad cell ect. If you issolate then you may always have one for back up.

Doug&Ruth
Wind Lass
Tacoma Wa.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.