Should I only use the house bank at dock? - SailNet Community
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post #1 of 5 Old 09-12-2016 Thread Starter
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Should I only use the house bank at dock?

All,

My charger is connected to the battery switch common post so in order to charge both the house bank and the starter battery, the "Both" position must be selected.

My question is should I only select/charge the house bank when at the dock? Having both batteries selected means I'm running my refer off both the house and starter batteries at the same time. I'm not sure if this is an issue when the charger is in float mode and most of the power is coming from the AC feed to the charger.

Thanks,

Shrimp

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post #2 of 5 Old 09-12-2016
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Re: Should I only use the house bank at dock?

Not an issue while in your slip, but you have to remember to switch to the house bank when you leave the slip and go sailing. I would install an automatic charging relay (ACR) that automatically charges both batteries when power is available and disconnects the start battery when sailing. I installed a Blue Sea ACR a couple of years ago as part of an electrical system upgrade and really happy with it. No more constant playing with the battery switch.
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Re: Should I only use the house bank at dock?

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Originally Posted by cshrimpt View Post
All,

My charger is connected to the battery switch common post so in order to charge both the house bank and the starter battery, the "Both" position must be selected.

My question is should I only select/charge the house bank when at the dock? Having both batteries selected means I'm running my refer off both the house and starter batteries at the same time. I'm not sure if this is an issue when the charger is in float mode and most of the power is coming from the AC feed to the charger.

Thanks,

Shrimp
Does your Xantrex inverter/charger have the Echo Charge feature built in?

An inverter/charger should connect directly to the house bank via its own independent ON/OFF not via a 1/2/BOTH. It is considered a poor practice installation when the inverter can inadvertently be set to discharge the start battery.

If you don't have an Echo Charger on your I/C then the start battery could be charged via an added Echo Charger or you can add an ACR between house and start.

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post #4 of 5 Old 09-12-2016 Thread Starter
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Re: Should I only use the house bank at dock?

My I/C is an ancient Freedom 10. It just has the single output cable which is why it is connected to the battery switch. I'm probably due for an upgrade.

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Shrimp

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Re: Should I only use the house bank at dock?

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Originally Posted by cshrimpt View Post
My I/C is an ancient Freedom 10. It just has the single output cable which is why it is connected to the battery switch. I'm probably due for an upgrade.

Thanks,

Shrimp
WADR, nonsense. I have an "ancient" Freedom 15 that I installed in 1998. There is no way in hell I'd tie it into the 1-2-B switch. That is NOT what the instructions say to do. You need BIG 2/0 cables from the I/C to the house bank. Period. Nowhere near the switch. You are very lucky you haven't had problems. Big problems.

You don't need an upgrade, you simply need to wire it properly.

The manuals are still available on Xantrex's website under discontinued products.

I installed a Yandina combiner, too.

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