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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

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@...> 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.

--
Jeff LaCoursiere
s/v Angels Quest
St Thomas USVI