Electric bikes, bicycles and pedelecs

Hello Everyone ,
I just read this post on another website and it got me sorta concerned ..This Guy got a kit from one of the manufacturers and when he used it for the second time it burnt up his controller ..

Seems the diagnosis is that the regen braking was putting out too much current for the SLA batteries he was using and it sorta "backed up" and burnt the controller ??? That's the story ...

Hello All , Please can someone help me . I am getting ready to buy the 4 12 volt SLA Batteries for the Bike I'm setting up .. I know what the Amp Hour Rating is but cannot find th amps output rating of any of these Sealed Lead Acid batteries SLA .. Can someone please teach me about this ??

The batteries I am looking at are the Toyo 10AH ones that are part # 6FM 10 . The bike motor is a 1000 watt max motor and calls for 48 volts .

I have no idea if there is even any reason to worry about this ?? Maybe all of the SLA Batteries will work ??

Well, I've gone and done it now;)

I raised electric cycling at a panel discussion in DC last night. The panel included the NYC Transportation Commissioner, the founder of the Congressional Bike Caucus, and David Byrne (author of Bicycle Diaries and from the Talking Heads.)

I feel strongly that the electric cycling community needs to become a part of the policy discussion. For more, see

The Light Electric Vehicle Association is seeking electric bike users and dealers/retailers to take a 5 minute on-line survey that will be emailed to you. We are polling people as to what are the most important factors in deciding to sell and/or purchase electric bikes, plus how they are being used. We will share the results with those who respond. Please email me at sidneyk [at] levassociation.com if you'd like to participate or use my VisForVoltage contact page. The survey will go out next week (12-7-09).

This is a total newbie question, I spent some days reading the forums (this is an excellent site btw), but still need help starting out. I plan to convert a schwinn Meridian trike to electric. I live on a large campus that has hilly grass so I need some power to get around. Also, I will have a small 2-wheel trailer that I will be pulling with a small load.

I'm searching for EVG 36v controllers for the EBike LE. I'm trying to find out from the community if there is a substitute for the controller?

I had removed the controller from the bike but there are no signs of removing the casing to check the wiring inside and to see if there is a short. The controller looks like it was blocked together and not meant to be open.

If there is any other enthusiast who had luck in removing the casing from the controller that would be helpful as well and maybe I can replace the wires and other items from my local electronic store.

Here is what I think I know. If I hook a small gasoline engine to a brushed scooter motor and fire it up. the scooter motor will output electricity. I assume based on the backward engineering, the voltage will depend on the speed of the gasoline motor and how fast it turns the scooter motor.

I am assuming that as long as I keep it with the range of the controller, I could hook this to power my ebike. I am thinking pulling the whole thing on a trailer. And yes I know it defeats the basic principle of the ebike.

Just on the pure science or art of it, will this work.

i just bought a 24 Volt 300 Watt Kollmorgan® Brushless Motor With Built In Speed Controller, i have just wired it all up as the diagram says but it is still not working can anybody give me a hand with this
thanks
monty

Maybe someone who knows a thing or two about Singapore can explain this. The article says the Singapore police are cracking down on "unapproved motorised bicycles" that "do not meet safety standards". It goes on to claim such bicycles endanger others. The penalty is "fined up to S$1,000, or jailed for up to three months for the first offence". They explain that legal bicycles have motors up to 200 watts and a control system that cuts the motor once the rider gets to 25 km/h

Hi all,

I'm installing a 750W 36V rear hub brushless motor onto a SLA system. Once everything is connected, with the throttle control on off, I get a huge spark when I make the final connection between the controller and the batteries.

I've been reading on this forum that the spark can be considered normal, since some capacitors inside the controller are being charged for the first time.