Re: LiFePO4 Conversion on sv BeBe - SM#387


Dan Carlson
 

Hi Matt, for me it was about being fully in control of my battery management system. I did not like the "black box" approach of the "drop-in" batteries. 

I wanted to know my system and be able to buy spares for and replace components.  In the process I also saved some money, my 400Ah is significantly smaller and a little lighter than a drop in solution. 

I was also concerned about the few high amp situations. Specifically the bow thruster that does draw about 400Amps at the battery.  I know my wiring, fuses and relays are up for the load.  From what I've read, I don't think that the major drop-in brands should be an issue either. But I decided to go my way. 

I would caution that it is a challenging learning curve and more that enough bad advice out there to keep you confused and shake your confidence.

I hope that helps.

Thanks and regards, Daniel and Lori Carlson on sv BeBe, SM #387

On Mon, Oct 19, 2020, 9:39 AM Matt & Michelle Day <charlesmatthewday@...> wrote:
Dan,

In addition to Steve's question above, I am hoping you can provide a couple of further insights into your design process.

What drove your decision in using prismatic cells verses off-the-shelf size 31 batteries (i.e. Battle Born batteries)?  Cost?  Flexibility?  

Did the time trade to assemble the prismatic cells payoff in your cost trade?

Many thanks!

Matt

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