Originally Posted by
noglider
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.
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I think it comes down to personal preference, I would rather keep using the taillights I bought a decade or more ago, and since they use NiMH AAA batteries, I can. The GPS I use for backpacking, canoeing, kayaking, that takes AA batteries, have been using it for nine years. The GPS I use on my bike, that also takes AA batteries.
And if one of my devices needs to be recharged, I can change the batteries and it is immediately recharged, do not have to wait for an internal battery to charge.
I needed to replace a headlamp (for my head, not bike) last summer, bought one that takes a single AA NiMH battery, it works great.
I am not trying to convince you to change, I am just pointing out that there are different opinions.