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Battery Replacement on Lights with Internal Li-Ion Batteries
On 2/7/2018 10:22 AM, jbeattie wrote:
On Tuesday, February 6, 2018 at 7:16:12 PM UTC-8, John B. wrote: On Tue, 6 Feb 2018 21:56:16 -0500, Frank Krygowski wrote: On 2/6/2018 1:52 PM, sms wrote: My wife's Lezyne Deca 1500XXL stopped taking a charge, at all. Taking it apart, I saw that the batteries were made in July 2015. Not too good for it to stop working that soon. Some of my bikes have dynamos that are 30 years old. They just keep going and going and going... And I doubt that your generators cost $150 ($180 with a box) either :-) My generator and light cost almost five times the price of my little L&M Urban 800 all-in-one, which produces more light. Hub was $110 on sale at Western Bikeworks (SP PD8), and the Luxos B was around $120 OTC from Clever Cycles in Portland. Throw in time for building front wheel. I got the all in one on sale for around $45. Hub dynos can be a significant expense, but they are not the only choice. One does not always need their advantages. My touring bike and our tandem have bottle dynos with good B&M headlights. Those bottle dynos were free, decades ago. The one on my touring bike is occasionally starting to rattle a bit (I think a bearing is going) but it's usually perfect. When I get annoyed enough, I'll replace it with another free one from my junk box. My wife's touring bike and two of our folding bikes have roller dynos. They work especially well for folders because they are compact and well protected. I bought one of those roller units brand new in about 1979. I think another was bought used, and I know one was given to me. So overall, my dyno expenses are minimal. Granted, bottle dynos might slip in heavy rain if not well adjusted. Rollers will slip in mud. But those shortcomings are unimportant to most cyclists. Jay, I think your riding conditions are at the far right of some bell curve. You do fast sport riding over long distances, you commute almost every day in all weather, you commute over tough hills and dirt paths, you ride in dense traffic, you maintain a stable of bikes... Very few cyclists do all those things. Very few really need the high efficiency and extreme reliability of a hub dyno. Very few need multi-hundred-lumen headlights. I think almost all cyclists would do fine with an old-tech dyno and a good (not top-of-the-line) B&M headlight. It wouldn't cost them an arm and a leg. And it wouldn't require hacker-style electronic repair in three years. -- - Frank Krygowski |
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