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You can already buy single use phone chargers at convenience stores which, while ecologically horrifying, also speaks to how the economics of mass manufacturing work.

Then again, are single use phone chargers any more ecologically horrifying than non-rechargeable AA batteries or have they simply been around for much longer and have become mundane.

I recently saw those, I was shocked by both the price and the fact they were single use, surely a charging port and the extra circuitry would barely touch the BoM?

I've got a battery bank integrated into my wallet anyway, so I won't be caught out.

Actually, I took apart a similar device, a single-use e-cigarette battery, and it turns out to be identical to the rechargeable version, except on the tiny PCB inside the chip for handling the charging from USB was absent. The battery was the same Li-ion rechargeable, supplied charged up for ~1 days usage. The economics of these cheap electronics are insane...

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