Hi Michael,
It seems like you are a "hands-on" sorta guy, why not buy the cells and BMS domestically and assemble the bank yourself?
The pre-packaged lithium solutions readily available here tend to be pricey (Mastervolt, Torqeedo, etc), but you can put a safe, reliable, and powerful bank together yourself with a bit of research.
I did it a couple years ago, and with the increased understanding of these cells, better documentation, and improved products, it's easier than ever.
-Tom
--- In
electricboats@yahoogroups.com, Michael Mccomb <mccomb.michael@...> wrote:
>
> I've been trying to get an answer from a Chinese company that I contacted through Alibaba. The question was pretty simple being as I found a photo, description and specs for what I thought a suitable product on one of the Alibaba web pages.
>
> I asked for the price of the unit displayed which was a 48v, 200ah LiFePO4 battery pack which they claimed would make a great EV power pack. I asked about the functionality of the included BMS in terms of high and low cutoff at the cell level and if they used passive or active or none at all balancing.
>
> So far the optimum-china.com folks have asked five different sets of questions and I have patiently responded all five times but to this point they have not provided even the hint of a price. Their latest with no price give was that perhaps I was ordering a larger battery pack than I needed?
>
> REALLY a waste of time talking to these folks.
>
> Being as all manufacturing is being moved off shore I will probably have to try again at some pont but this particular group is no firmly on my "S" list. They simply seem incapable of answering the very strait forward question "how much?".
>
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