what does dot marking mean? Have pictures? If Elon's tweak is real, and they did not start until Nov, and you truely have one made in July v2.1,I just checked and both black stickers on the Powerwall 2s show: ASY,AC POWERWALL2.1,5KW
On the first battery black plastic panel, the latest dot marking is: 7/2020
On the second battery black plastic panel, the latest dot marking is: 12/2020
then maybe there is something different coming? We will just have to wait and see. IMO, sure glad it is not a capacity increase!!