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different part numbers - actual differences?

different part numbers - actual differences?

i have a 4 powerwall system that started out life as a 2 powerwall system - because of the delay i have two different part numbers across the 4 batteries...

anyone know the actual differences?

2012170-03-B vs 1092170-03-J?

1 PartNumber: 2012170-03-B
Serial: TG118329xxxxxx
2 PartNumber: 2012170-03-B
Serial: TG118364xxxxxx
3 PartNumber: 1092170-03-J
Serial: TG119333xxxxxx
4 PartNumber: 1092170-03-J
Serial: TG119333xxxxxx