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only two batteries for 24v troller and starting
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<blockquote data-quote="jethro" data-source="post: 476746" data-attributes="member: 12381"><p>I did an entire year of research before I installed my new trolling motor. Mine is a 36v system and the best practice is to use the same age batteries (brand new to start) and make sure you discharge them all exactly the same and in series. Same goes for charging. An unbalanced discharge or charge load will greatly lessen the life and performance of all the batteries in a series system. You absolutely can use one battery to isolate a 12v circuit but it will decrease the life of all the batteries attached in series because they will all struggle to balance themselves, especially with something like a starter circuit that is a short but very high load. I was told to not even hook up my bluetooth heading sensor that way and it uses way less than a single amp on 12v. Unbalanced load = bad is the whole theme of this story apparently. </p><p></p><p>For the same reasons I stated above, you do not want to attach the charging circuit to a single 12v battery attached to another in series. You can buy an accessory that will do this, but I am told it doesn't do enough for charging the system, even with my V6, 150hp outboard. Not pushing enough amps.</p></blockquote><p></p>
[QUOTE="jethro, post: 476746, member: 12381"] I did an entire year of research before I installed my new trolling motor. Mine is a 36v system and the best practice is to use the same age batteries (brand new to start) and make sure you discharge them all exactly the same and in series. Same goes for charging. An unbalanced discharge or charge load will greatly lessen the life and performance of all the batteries in a series system. You absolutely can use one battery to isolate a 12v circuit but it will decrease the life of all the batteries attached in series because they will all struggle to balance themselves, especially with something like a starter circuit that is a short but very high load. I was told to not even hook up my bluetooth heading sensor that way and it uses way less than a single amp on 12v. Unbalanced load = bad is the whole theme of this story apparently. For the same reasons I stated above, you do not want to attach the charging circuit to a single 12v battery attached to another in series. You can buy an accessory that will do this, but I am told it doesn't do enough for charging the system, even with my V6, 150hp outboard. Not pushing enough amps. [/QUOTE]
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only two batteries for 24v troller and starting
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