Good information in this post and video by Jack Rickard about the M3 battery pack

[MitchJi]

The information in this post and video on the M3’s battery pack by our friend Jack Rickard is worth tolerating his presence on the video to obtain imo:
http://evtv.me/2018/05/tesla-model-3-gone-battshit/

The two 23 cell modules are at each edge of the pack and 67 1/2 inches long, 11 1/2 inches wide and 3 1/2 inches thick and weigh 191 lbs.

The two 25 cell modules are located in the middle of the pack and 73 inches long, 11 1/2 inches wide and 3 1/2 inches thick and weigh 207 lbs...

My point is, California drivers being what they are, it’s going to soon be RAINING Model 3 batteries in the junk yards. But we don’t know how to use them. And I haven’t heard of anybody else that does either.

 

[MitchJi]

There are TWO 38 pin chips connecting to the left side copper tape and two 64 pin chips connecting to the right hand copper tape. One of the ongoing little never discussed issues with measuring cell voltage is that if you are pumping any current through the same wires you are measuring, the drop of the wires causes perturbation of the measured voltage. So whenever you “balance” these cells, you throw off the voltage measurement.

It is my belief that this generation chip has a real measurement resolution as small as 0.0022volts or 2.2 millivolts. So very very small resistance values can cause errors. Note the three tiny wires connecting to each copper land. And I guess I think we are doing cell balancing on one side of the module, while simultaneously monitoring voltage on the OTHER side of the module entirely out of the current path. This is a stunning solution and very difficult to implement normally because it means twice the numbers of wires and connections. But the flexible PCB tape approach makes this quite feasible. I’ve never seen anything like it. It’s like technology from another planet.

so my assertion in the video and more emphatically so at this point, given the level of advanced technology and integration I’m seeing in this battery assembly, and assuming the same level of effort from the Panasonic team at the chemistry/cell level, this is the BEST most ADVANCED large scale lithium battery every produced on planet and is YEARS ahead of anything currently in work. Tesla appears to be saying to the rest of the industry, “We’ve upped our game… so UP YOURS!”