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Replacing the old battery on rechargeable bike lights

208 points · 131 comments · surprisetalk

  1. amelius · · focus · HN ↗
    Does anyone know of a back light that turns off after 5 minutes of no movement? I'm tired of backlight being out of juice just because I forgot to turn it off ... I'm tempted to make a circuit and maybe even the sensor myself but I don't have the time for it and it probably already exists.
    1. bootlooped · · focus · HN ↗
      I have a Knog Cobber. While it doesn't shut off automatically, it's bright enough that I think it would be quite unlikely to finish the ride without noticing the light is still on.
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