> A question for the battery experts

Well, thanks for that ;-)

> What type of batteries is commonly used in "battery-less" flashlights

I've a Faraday LED torch that is supposed to be battery-less but does
in fact have a 2023 coin cell hidden in it. So for the first few hours it
works well and you think gosh I'm a good shaker. Then the battery runs
down and she no work not so good no more. It still makes light but
the "supercap" storage isn't what you'd hope or expected
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