Re: [electricboats] Draft Schematic-Please give input

For $3190? Yikes! I think that is an order of magnitude too steep for the use case. 

They look like an interesting vendor though!

On May 1, 2021, at 05:48, Bob Jennings <heatnh@gmail.com> wrote:



Gotta admit you guys are definitely pushing the edge of the envelope & taking EP in a direction that to me is mindboggling.  Nice work!

On Sat, May 1, 2021, 8:25 AM Jeff LaCoursiere <jeff@stratustalk.com> wrote:

Oof, that thing costs more than the cells to make the pack. Looks like a nice unit though!

Regarding all the issues pointed out about our fast switching bank idea, all completely correct - noise, power draw, may be a completely impractical idea.  Will let you know how it turns out :)

Cheers,

j

On 5/1/21 2:40 AM, Robert McArthur wrote:

Jeff, have a search for Safiery and their Scotty product. It's a 2-way DC-DC 12-48 buck boost for 3kW. It would provide your 12v tap (up to 3kW).

On 30 Apr 2021, at 4:46 am, Jeff LaCoursiere <jeff@stratustalk.com> wrote:

 We haven't had any bad cells imported yet, knock wood.  We *are* doing our best to burn down our offices with our BMS experiments though :)  Also, our latest batch was all EVE 280AH cells, the Lishen 272AH are apparently "all gone".

Another cool idea we are kicking around... we want our 48v pack to have a 12v tap, so you can use it as your house battery as well as your traction battery.  I'm disappointed in the available downconverters, mostly current limited to 30-60A.  Maybe that would be enough for your house, but it wouldn't do it for mine.

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	Jeff LaCoursiere STRATUSTALK, INC. / CTO Phone: +1 703.496.4990 x108 Mobile: +1 815.546.6599 Email: jeff@stratustalk.com Website: https://www.stratustalk.com Address: One Freedom Square 13th Floor Reston, VA 20190

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Jeff LaCoursiere
s/v Angels Quest
St Thomas USVI