And it seemed the main issue as identified by Luna was not with the cells but the bank design itself.
> If the recall is affecting units made with 18650 battery cells from multiple suppliers, that suggests the root cause of the recall stems from elsewhere in the power bank. We next focused on the PCB and assembly of the board with the cells.
> We can measure the distance to quantify how dramatically the gap between the positive and negative bus bars varies across the three units. In PB1, that distance is only 0.52 mm
But it is still upstream since AFAIK Anker just rebrands other products.
And it seemed the main issue as identified by Luna was not with the cells but the bank design itself.
> If the recall is affecting units made with 18650 battery cells from multiple suppliers, that suggests the root cause of the recall stems from elsewhere in the power bank. We next focused on the PCB and assembly of the board with the cells.
> We can measure the distance to quantify how dramatically the gap between the positive and negative bus bars varies across the three units. In PB1, that distance is only 0.52 mm
But it is still upstream since AFAIK Anker just rebrands other products.