Recent content by Porter

So I've been diving down the "pack" spec rabbit hole and trying to reconcile numbers. I apologize for the cross post, but it seemed relevant to this thread as well. Here are my assumptions: - 74 (cells in parallel) * 3.1Ah (cell) * pack voltage (cell V * cells in series) = kWh. - Cell...

Again remember we are talking about the nominal "pack" voltage of a very large pack and not the individual cell voltage. Nominal is not actual. There are lots of variables that go into what "actual" could be. Here is how one battery supplier describes it: "The lithium battery output voltage...

I'm not sure if I have the math right, but I thought to estimate pack kWh, it would 74 (cells in parallel) * 3.1 (cell Ah) * pack voltage = kWh. We know there are only 3.6 V (nominally) per cell and that there are 96 cells in series. This would equal a nominal pack voltage of 345.6 V. We...

The most recent Panasonic deal outlined supply agreement for 2 billion cells. Now the reports are that it represents $7 billion in revenue for Panasonic. In rough terms that would be $3.50 a cell average ($24,684 cell price for the MS pack). While not completely unreasonable given some of the...