alt Hacker NewsThe other day my bicycle light gave out, so I took it apart - was not the most expensive option, but also not the cheapest.
It was advertised as having a 2600mAh battery, but when I opened it up, inside there was a 1700mAh cell. Also no sign of purported weatherproofing, as the lens was not even glued in.
I have a 2000mAh cell in the same form factor (approximately 500Wh/l, so believable) on its way from China, which makes me wonder how did they come up with that 2600mAh figure.
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> how did they come up with that 2600mAh figure.
The same capacity corresponds to different mAh at different voltages, maybe they are playing games with that.
Because more is better. Seriously, the game they play is at this point ludicrous. I saw 18650 cell being advertised through the years as 2500mAh, to 3500mAh (still reasonable/credible), then suppliers started to one-up each other and you could see 5000mAh, 9000mAh, 9999mAh up to, I kid you not, 1.000.000mAh. If I had no clue, of course I would by the 1KAh single cell XD
For whatever reason, the lies about specs are particularly egregious for lights. Slopmarts like Amazon and AliExpress happily advertise 50,000 lumen flashlights (which would probably melt after a few seconds if they actually operated at that level)