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The "Dead" Battery Lamp

scottiebabe over 1 year ago

Soft 404

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scottiebabe over 1 year ago in reply to beacon_dave +4

Excellent reference! Karen did a wonderful job on her joule-thief circuit . I thought about mentioning it, takes for mentioning Karen's project! These modules are beginner friendly and provide a regulated…
scottiebabe over 1 year ago in reply to Jan Cumps +3

Yes, past 600 mV there isn't much left... Of course you can use a fresh cell too Some of the low cost dollar store solar lamps use tabbed ni-mh cells, I'm sure if I were to shop around I could find them…
Jan Cumps over 1 year ago in reply to scottiebabe +2

you could, but for a very short time. By the time an alkaline battery has dropped to that voltage, there's virtually no joules left.

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robogary over 1 year ago

Nice idea. Maybe can boost it to 1.3v and squeeze that lemon into a rechargeable battery. Wii controllers make alot of lemon squeezes
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robogary over 1 year ago

Nice idea. Maybe can boost it to 1.3v and squeeze that lemon into a rechargeable battery. Wii controllers make alot of lemon squeezes
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scottiebabe over 1 year ago in reply to robogary

Thanks, I could measure the battery life of a lemon battery with my USB tester... thinking of it!
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