[Haku]

I started off by powering the few LEDs in the front/back with a 4x AA pack (alkalines lasted much longer than rechargables - a voltage thing) connected to a DC-DC converter, then after a lot of thinking about how to tap the power from the bike's battery I hit upon a solution that wouldn't invalidate the warranty by having to dismantle anythnig, and it was really simple.

My Urban Mover battery has two counter-sunk contacts on it's base which press down on two heavy duty sprung loaded 7mm or so width pins. I made a couple of springs with a width slightly smaller than the contact pins (and soldered wire onto them), so when you twist them onto the contact pins they grip tight.
The great thing is the springs don't get in the way of the battery or the contacts, inbetween the battery base and the bike is a gap of 3mm or so which is enough to bring the wire out without it getting squashed, and it can all be removed very quickly and easily if need be. I'll add a picture of the setup to this post tomorrow.


I'm this close to acquiring all the bits to finish, just need a single 15ohm resistor for the back LEDs (wiring diagram & details in posts will be altered accordingly when fitted as this is all still a work in progress).