Unraveling the Secret Origins of an AmazonBasics Battery
onezero.medium.com
onezero.medium.com
These batteries are made by Fujitsu? That seems quite upstanding compared to what I would guess. It sounds like there is/was a quality problem, but no actual details to put it in context. I don't know Fujitsu's precise reputation here, but it's possible Amazon could have switched to them due to quality issues somewhere else.
Shedding some light on supply chains is certainly a worthy goal, but this does not help.
I once bought a AmazonBasics power bank which got recalled quite some time later due to a possible fire hazard. They refunded me the money and told me to dispose of the unit. Although the fire hazard part did not help my trust in the brand at first I later wondered how other manufacturers would have handled this. I'm pretty sure that I wouldn't have heard anything from most of them.
(Lightly related, just this week I noticed the battery of my Dell laptop had swollen so far that it bulged the casing. Batteries are scary...)