Master Slave BMS Specs Feedback welcome!

5725 Views 12 Replies 4 Participants Last post by annerajb, May 10, 2018

annerajb

Discussion Starter · Mar 27, 2018 (Edited)

Hello,

Wanted to share what we been working for the past year or two and gather some more feedback about. (I already got some see below)

We decided after Hurricane Maria in Puerto Rico to allow our aircraft BMS we designed to be used for diy powerwalls and HV conversion packs.

Here is a link to the post with the specs.
https://medium.com/@annerjb/battery-management-system-and-shunt-wip-specs-3fdd12e576b4

It should also work with 24v and 48v packs using 6s and 12s packs same way Tesla does it.
TL;DR:

In terms of pricing and delivery this is our price targets:

BMS(master board) $120 USD
BMB(slave board) $98 USD each (up to 6 cells each 24v ) some sort of volume discount if more than one is needed. (includes thermistors)
Shunt $100 USD

Any feedback on it? Especially regarding connectivity and outputs?

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PAXtss

· #8 · May 1, 2018

Since i am looking at BMS for a 180V 48 taps - each with 4 cells in parallel. I am interested but a little worried about your dissipation amperage due to the 4s cells

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