Johnson Controls is very much a battery manufacturer. They make Optima
batteries, for example.
Johnson Controls buys up other businesses, including battery
manufacturers, like Optima. They are a large, somewhat bumbling,
conglomerate. (They are kind of like Raytheon, or General Electric.)
They bought Optima because they wanted the IP for spiral lead-acid
battery technology. Soon after buying Optima, they got rid of the R&D
department entirely, which held all the IP they were after. (This spread
the IP to other battery companies and away from Johnson Controls.)
They then had to dial back the performance numbers on the spec
sheets and the ratings on the batteries because the manufacturing line
was unable to troubleshoot problems they encountered manufacturing
Optimas. This was because they cut the entire R&D shop and with it the
knowledge to actually keep the line running properly.
Bill D.
The cell type and cooling method looks a lot like VW does (rectangular cells,
cooled at the bottom on a cold plate, 12 cells in a module) though VW tends to
use 3 parallel so a module is typically 4s3p (14V), but this seller may have
rewired such modules, I don’t know. VW is using 2 different manufacturers. As
far as I know, Johnson Controls is a reseller, not a battery manufacturer.
Cor.
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