Adding 3rd battery What charger do I need

[ditchsnake]

David you are two damm smart. "and so on" LOL. I understood #1. And thank you for your reply. At least I'm not a total idiot because I could at least see the problem. Could I set the acr I have now to off to keep it manually isolated?

[EarmarkMarine]

David you are two damm smart. "and so on" LOL. I understood #1. And thank you for your reply. At least I'm not a total idiot because I could at least see the problem. Could I set the acr I have now to off to keep it manually isolated?

Well, there truly is other methods also. The easiest is method #2 which is to add a standard marine or automotive SPST On/Off switch (a standard 15 amp switch is more than sufficient) to the ground wire of the ACR. Flip it 'Off' when you place the boat on the trailer and flip it 'On' when you splash the boat.

Now your question, "Could I set the acr I have now to off to keep it manually isolated?", suggests that your existing ACR is accompanied by a high current switch. However, BEP, Blue Sea, etc. have different wiring schemes. Rarely would setting the existing switch to 'Off' create any isolation because the ACR is typically positioned on the battery side of the switch. It's no extra trouble to change on an initial installation. Rather than change it after the fact, it could be easier to just follow method #2.

David

[ditchsnake]

Now I understand number two. That will be an easy and cheap fix. If I understood all of them I'm propably just kill myself. LOL

Well, there truly is other methods also. The easiest is method #2 which is to add a standard marine or automotive SPST On/Off switch (a standard 15 amp switch is more than sufficient) to the ground wire of the ACR. Flip it 'Off' when you place the boat on the trailer and flip it 'On' when you splash the boat.

Now your question, "Could I set the acr I have now to off to keep it manually isolated?", suggests that your existing ACR is accompanied by a high current switch. However, BEP, Blue Sea, etc. have different wiring schemes. Rarely would setting the existing switch to 'Off' create any isolation because the ACR is typically positioned on the battery side of the switch. It's no extra trouble to change on an initial installation. Rather than change it after the fact, it could be easier to just follow method #2.

David