What Are Best House Batteries for Cruising Catamaran?

[kenbo]

Originally Posted by mikedefieslife

What learning curve? Pair them with the right charger and that's it. Pretty much every modern charger and alternator controller is designed to be able to handle LiFePo4 batteries. It's just a case of cross checking the specs with the battery datasheets. In that regard it's no different from FLA or AGM. Sure you can get in to minute details of battery tech and charging systems, but most will will buy a system, set it up once then forget about it.

Of course I say all that whilst I'm sat here in a Cat with 200kg of FLA batteries.

Originally Posted by billknny

I think it is really odd that people have offered you all kinds of advice on what to get without knowing the most important piece of information:

How much power do you USE in a day???

Originally Posted by john61ct

No, all that is needed is user-custom setpoints like MC-614.

All gear on the market I've seen touting a canned LFP profile, including from LFP makers, are set way too high at 14+V.

The other major improvements would be NO float, just stop output to the LFP bank, and also the ability to really reduce or eliminate Absorb time.

But all these need to be user-adjustable.

John,

What you say above is not ideal and doesn't represent a fully designed alternator regulator for LiFePO4 batteries.

It either involves some type of alarm and human intervention to open the field circuit. Or the additional use of external relays to do the same.

My comment, I believe still stands. What off the shelf alternator regulator is fully designed to properly charge LFP without workarounds or operator intervention?

[mikedefieslife]

Originally Posted by kenbo

John,

What you say above is not ideal and doesn't represent a fully designed alternator regulator for LiFePO4 batteries.

It either involves some type of alarm and human intervention to open the field circuit. Or the additional use of external relays to do the same.

My comment, I believe still stands. What off the shelf alternator regulator is fully designed to properly charge LFP without workarounds or operator intervention?

They aren’t work arounds or intervention it’s just how the controllers work. It’s no different for any other tech. You still need to set it up. After that it’s automatic.

[john61ct]

Originally Posted by kenbo

John,

What you say above is not ideal and doesn't represent a fully designed alternator regulator for LiFePO4 batteries.

It either involves some type of alarm and human intervention to open the field circuit. Or the additional use of external relays to do the same.

My comment, I believe still stands. What off the shelf alternator regulator is fully designed to properly charge LFP without workarounds or operator intervention?

Let's please continue the LFP-specifics in that current thread?

http://www.cruisersforum.com/forums/....php?p=2524888