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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by Gotte

  1. G

    Bicycle usb-charger help

    Thanks for that. I'm tempted to get it, but the last thing I could do with finding out is if I'll be able to change dynamos later. At the moment, I want a bottle dynamo so I can swap it between bikes with different wheel size, but later, I might get a hub dynamo for one of my touring bikes...
  2. G

    Bicycle usb-charger help

    Thanks for that. I've been doing a bit a digging, and the Hero battery is rated at 1350 mAh. I'm guessing that's from the wall charger and not USB charging. The hero charges from USB, which I understand should be about 5v at 500mA. Will the rating of the battery be affected by the lower mA of...
  3. G

    Bicycle usb-charger help

    Hi, I'm new here, and must admit I know very little about electronics. But I figured you guys might be able to help me. I'm trying to sort out a way of charging a HTC hero smart phone from a bicycle dynamo (bottle) using it's mini usb function. There are some options out there, but most...
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