Use one or two Victron Orion 12/12 30Ah?

[Juan Morales]

Let's see if someone can guide me. I want to change my caramaran to Lithium. This is the battery isolator that I have on the boat. It has two inputs for the two alternators and three outputs, two to charge the starter batteries and one to charge the service batteries. I currently have three AGMs of 145 Ah each that broke down. I bought four LiFePo4 314Ah 12V cells and the question is whether to put a Victron Orion 12/12 30Ah at the output to charge the service batteries or to put two Victron Orion 12/12 30h at the battery output?

[smac999]

Skip the 30a orions. They heat up and are not efficient.

Get the new 50a xs. It can be reduced to set to any amp you want if needed to.

Remove the isolator. Run each alt to the start battery. An Orion between each start battery and house.

[HankOnthewater]

Originally Posted by Juan Morales

Let's see if someone can guide me. I want to change my caramaran to Lithium. This is the battery isolator that I have on the boat. It has two inputs for the two alternators and three outputs, two to charge the starter batteries and one to charge the service batteries. I currently have three AGMs of 145 Ah each that broke down. I bought four LiFePo4 314Ah 12V cells and the question is whether to put a Victron Orion 12/12 30Ah at the output to charge the service batteries or to put two Victron Orion 12/12 30h at the battery output?

I agree with above, forget the Orion/Victron 12/12 30 Amp. I have installed them in the past and even 2 of them parallel (to get a higher amperage). On the last 2 installations I have used the XS 12/12 50 Amp, smaller, more efficient (less heat), but more pricey though.
They are easily to configure.

[CaptainRivet]

Originally Posted by Juan Morales

Let's see if someone can guide me. I want to change my caramaran to Lithium. This is the battery isolator that I have on the boat. It has two inputs for the two alternators and three outputs, two to charge the starter batteries and one to charge the service batteries. I currently have three AGMs of 145 Ah each that broke down. I bought four LiFePo4 314Ah 12V cells and the question is whether to put a Victron Orion 12/12 30Ah at the output to charge the service batteries or to put two Victron Orion 12/12 30h at the battery output?

Question if you need DC2DC or not:
What rating and/or make are both of your alternator. Do you know if they are internally temp regulated/protected.

Wanna squeeze all out when both engines running or when 1 engine is running (which in majority is the case)

[Juan Morales]

Have I already bought it?

[Juan Morales]

The boat is normally anchored, I do not live on it, the batteries will be charged with three 450W solar panels plus the alternator or alternators, each alternator is 115 Ah and I believe it does not have a temperature probe.

[Juan Morales]

Originally Posted by smac999

Skip the 30a orions. They heat up and are not efficient.

Get the new 50a xs. It can be reduced to set to any amp you want if needed to.

Remove the isolator. Run each alt to the start battery. An Orion between each start battery and house.

Have I already bought it?

[Juan Morales]

Originally Posted by CaptainRivet

Question if you need DC2DC or not:
What rating and/or make are both of your alternator. Do you know if they are internally temp regulated/protected.

Wanna squeeze all out when both engines running or when 1 engine is running (which in majority is the case)

The boat is normally anchored, I do not live on it, the batteries will be charged with three 450W solar panels plus the alternator or alternators, each alternator is 115 Ah and I believe it does not have a temperature probe.