aka Tom Reingold
Join Date: Jan 2009
Location: New York, NY, and High Falls, NY, USA
Posts: 40,502
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
Mentioned: 511 Post(s)
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Quoted: 7348 Post(s)
The USB rechargeable lights are much more convenient to charge, and as others point out, they work much better. I'm not happy that I usually have to replace the entire light when the battery dies, but this is a price for so-called progress.
I have a fantasy of installing an electrical system on my bike, powered by an external 5V lithium-ion battery, but it will take some work. I could power rechargeable lights, including those whose internal batteries have failed. I could also power *some* models of lights intended for dynamo use. If I ever succeed, I'll post here. My spouse has a habit of carrying one of those batteries when she goes out, and she charges her phone with it. She could extend that habit to the bike. She cannot, however, remember to keep her bike lights charged, so this would be an improvement for her.