Bike Forums - View Single Post - Brake lights & turn indicators

11-08-10 | 11:24 AM

#28

rscamp

Senior Member

Joined: Jun 2008

Posts: 251

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Quote:

Originally Posted by himespau

I have the cheap one you first linked to. It works ok, but I really only use the turn signals/taillight at dusk (usually the latest I'm out) and rarely use anything other than the horn (my wife bought it for me, so I leave it on there though I've since disconnected the brake light). I wonder if you could use the switches somehow but your own lights/power source or if that would burn out the cheap wires.

...or use http://www.electricscooterparts.com/switches.html (SWT-30) This will only switch low currents so relays can be used for high power headlights, etc.

You can:
- use an LED-compatible motorcycle flasher for the turn signals
- use reed relays for the brakes (there are some brake levers with these built in available from ebike kit distributors)
- use a 3S LiPo battery for a nominal 12V, high energy density power source (you would also need appropriate charging equip!!!)
- put everything but the switches and lights in a little plastic project box.

I used 3s, 5Ah LiPos for a while. They would last for many weeks on a charge even with regular use. With a higher voltage source (i.e. a bike with an e-assist battery) a DC-DC converter off the main power battery is even more convenient...

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