Hello everyone
I am curious to know about charging batteries in parallel in my setup (when the switch is set to both)- I have heard various opinions, from "the alternator will see the charge of the higher one and therefore never charge the lower" and "the lower will draw down the higher so both batteries will never get charged" to "it's just fine, the alternator will put out enough and the battery that can take more will".
I have 2 group 27 100AM FLA batteries. These are wired through the 1/2/b/o switch, which is make before break. The alternator is connected to the switch. The wiring in my boat is correct and proper for this setup. The automatic bilge pump runs off battery #2, which is what I typically run my minimal house loads off of. I have a not smart at all stock Hitachi alternator.
I do know how to use the switch correctly, and it works just fine for my current needs. I will be upgrading the system once these perfectly good batteries eventually die.
For the moment I'm just looking to learn some more, so thanks!!!
I am curious to know about charging batteries in parallel in my setup (when the switch is set to both)- I have heard various opinions, from "the alternator will see the charge of the higher one and therefore never charge the lower" and "the lower will draw down the higher so both batteries will never get charged" to "it's just fine, the alternator will put out enough and the battery that can take more will".
I have 2 group 27 100AM FLA batteries. These are wired through the 1/2/b/o switch, which is make before break. The alternator is connected to the switch. The wiring in my boat is correct and proper for this setup. The automatic bilge pump runs off battery #2, which is what I typically run my minimal house loads off of. I have a not smart at all stock Hitachi alternator.
I do know how to use the switch correctly, and it works just fine for my current needs. I will be upgrading the system once these perfectly good batteries eventually die.
For the moment I'm just looking to learn some more, so thanks!!!