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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 B
by amiga-workbench 9y ago
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.
- grkvlt 9y agoActually, 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...