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21six avatar image
21six asked

Guidance in Building System for Boat

Here is what I have:

2 Yamaha 200's (50 amp Alternator Output each)

2 Optima Bluetop D31M Starter Batteries (75 AH, 900 CCA)

BEP Smart Battery Hub


Here is what I want to accomplish:

House battery setup - Either 1 Relion 12v 100 Amp lithium battery or 2 Relion 12v 60 Amp batteries in parallel

Charge the house bank via an Orion DC-DC Converter, but i have no clue which one.

Possibly a 400w REDARC inverter for phone charing and light loads like that.


How do I accomplish this? I have no clue where to even start?



marine
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2 Answers
Rob Fijn avatar image
Rob Fijn answered ·

Hi 21six, at first I would start with Victron Lithium battery. Relion is not yet in the compatibility list...
Then use a 2 to 1 Battery combiner and a DC/DC charger for the House bank.

use a Battery monitor for your House bank... and a new DC distribution out from the House bank

Hope to have helped you, Rob


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21six avatar image 21six commented ·

Thank you for taking the time to reply. I appreciate it!

What is a recommended 2 to 1 combiner?

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christern avatar image
christern answered ·

”Possibly a 400w REDARC inverter for phone charing and light loads like that.”

I wouldn’t go that way for just phone-charging and similar things unless the appliance really needs AC. All phones are charged with DC and it is perfectly fine to use i.e. a USB-outlet for charging.

(Going from DC to AC with an inverter just to have a charger that converts AC to DC seems unnecessary and creates losses.)

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21six avatar image 21six commented ·
Thank you
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