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diy solar

Does Battleborn design their BMSes?

sunrise

New Member
Joined
Jul 16, 2020
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206
I came across this post

and the picture shows a BMS inside the battery, it's really not that much different from JBD BMSes, same layout . The supplier model number seems to indicate it's a off-shelf unit.

I have always thought although they don't make the cells and BMSes, they design the BMS.
 
Putting 30 cells in parallel requires very good cell matching. Not easy for a DIYer.

Battle Born likely gets cells with manufacturing lot batch info from original cell manufacturer, prepackaged in matching groups.
 
I built a 7s120p lithium ion battery out of 840 18650 batteries I reclaimed from battery packs. I tested about 1000 of them and then put them so each pack of 120 batteries were the same capacity. Came out to 312ah 24v battery .
 

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Putting 30 cells in parallel requires very good cell matching. Not easy for a DIYer.

Battle Born likely gets cells with manufacturing lot batch info from original cell manufacturer, prepackaged in matching groups.
is it much more than patience and a cell capacity and internal resistance meter?

financial requirement to source extra cells due to some being too different in capacity or internal resistance
 
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