taking a look at battery systems my way

deacon · #1 (**permalink**) 11-11-2009, 10:11 AM

First of all I have to decide what is the real max range I need on a ebike. I am not riding the bike to the next town for lunch so lets get real. I want the bike to give me a certain level of independence. They don't let me drive cars anymore because of a medical condition. Ebikes require no license insurance or registration at the moment. So it is the ideal compromise. The bike I built is in all ways satisfactory see the avatar. I also have one with a battery trailer which I am completing now.

Which also is a part of the battery equation. If you haul around three 20ah sla batteries you need an acceptable way to carry them. On the bicycle is a lousy option for me because I have had balance. I need a small bike so I don't fall mounting or dismounting. The faux trike or bike with trailer is my only option for SLA batteries. The sheer weight of them would cause the bike to fall over while I mounted or dismounted. I know this for a fact, been there done that.

So for me at least there is the expense of building a trailer. I can build a low cost trailer using the wheels from a thrift store 12" kids bike. Bike cost under ten bucks, metal about ten more. So proportion a share of the trailer cost over the life of the

deacon · #2 (**permalink**) 11-11-2009, 12:33 PM

I put a request for information on the Visforvolt forum. If I am going to spend that kind of money on a battery system, I think I want to explore the possibility of building a generator from a 36 volt scooter motor and a pocket bike gasoline engine.

If I run the scooter motor from the gasoline engine it should create somewhere near the watts of the scooter motor, I think. I hope I can run the bike from that current alone. I am going to see what the electric gurus have to say. I might also so some google research as well.

Blakenstein · #3 (**permalink**) 11-11-2009, 04:03 PM

Quote:

Originally Posted by deacon

First of all I have to decide what is the real max range I need on a ebike. I am not riding the bike to the next town for lunch so lets get real. I want the bike to give me a certain level of independence. They don't let me drive cars anymore because of a medical condition. Ebikes require no license insurance or registration at the moment. So it is the ideal compromise. The bike I built is in all ways satisfactory see the avatar. I also have one with a battery trailer which I am completing now.

Which also is a part of the battery equation. If you haul around three 20ah sla batteries you need an acceptable way to carry them. On the bicycle is a lousy option for me because I have had balance. I need a small bike so I don't fall mounting or dismounting. The faux trike or bike with trailer is my only option for SLA batteries. The sheer weight of them would cause the bike to fall over while I mounted or dismounted. I know this for a fact, been there done that.

So for me at least there is the expense of building a trailer. I can build a low cost trailer using the wheels from a thrift store 12" kids bike. Bike cost under ten bucks, metal about ten more. So proportion a share of the trailer cost over the life of the

Hello dude have you ever heard of these? There are different sizes and their highest end is illegal in every state outside California.These are made in Canada.The dealer up here used to deal the made in China ebikes but those broke down alot so now he deals these....... The Bionx electric motor and battery electric bike conversion kit

deacon · #4 (**permalink**) 11-11-2009, 04:40 PM

I really prefer to build my own bike to be honest. I don't really care for expensive kits. My bike is perfectly satisfactory for me and cost me under 75 dollars to build. The problem is in the batteries, not the motor or the bike.

I'm not really an authority or ebikes. or gasoline bikes. or even plain bikes for that matter. I just like to experiment with things.

Blakenstein · #5 (**permalink**) 11-11-2009, 05:00 PM

Quote:

Originally Posted by deacon

I really prefer to build my own bike to be honest. I don't really care for expensive kits. My bike is perfectly satisfactory for me and cost me under 75 dollars to build. The problem is in the batteries, not the motor or the bike.

I'm not really an authority or ebikes. or gasoline bikes. or even plain bikes for that matter. I just like to experiment with things.

I've had lots of diffrent ideas from car starters to magnetic I even made a card board mock up where I turned my spokes into turbine blades and made intake shroud and outake to force incoming wind through blades to turn wheels; I called it the "fan bike" hahahah I know it will work but I need materials.

I know that those BionX are way too pricey. Their 5oo wat 37V lith.mag are $2000.00 I only have 200 right now. I think Ill stay with my 48cc bridgestone Titan from American Chain Drive. It''''s working great and really hauls!!

deacon · #6 (**permalink**) 11-11-2009, 11:24 PM

Obviously I do not spend much time on Vis for volt forum. I got this in response to questions about how to make a diy generator circuit work.

"""It would seem that if you simply installed some better batteries, such as 12 cells of the "Thundersky" 40 Ampere-hour lithium-iron type, you would be able to meet your range requirements, and power system weight (batteries) would be about 45 pounds total.(this might be equal or less than your present batteries?) If your bike uses 36 volts at 20 amperes for "cruising speed" you would be able to travel at that speed for about 2 hours before killing the battery! (For better battery life, you would cut that time/distance to no more than 2/3 of what would be possible) Example: Bike criises at 20 mph, using 20 amperes-battery range would be 40 miles, maximum! Reduce this to about 26 miles for better battery life.--These batteries would cost about $700.00 """"

Odds are better that I will win the ballroom dancing contest, than that I would spend seven hundred bucks on batteries.

fasteddy · #7 (**permalink**) 11-12-2009, 01:26 AM

Deacon, I'm sitting here trying to tell my self that I want to go and spend close to $1,800 on a hub and battery ect.

Just where is that ball room dance contest?

Steve.

deacon · #8 (**permalink**) 11-12-2009, 05:56 PM

Take a look at the DIY thread I might save us some real money. I am experimenting with using a weedeater and a scooter motor to make a generator to charge sla batteries while we ride. If I can do that, I can beat the lithium battery I think. You know that guy with the trike did it and i might be able to do the same thing. It is a shot in the dark but worth a try I think.

fasteddy · #9 (**permalink**) 11-12-2009, 06:02 PM

Deacon, I'm a player with that one but the Province says no. The fine would buy a hub/battery and more ice tea than you and I could drink in a month.

They all want green but ask a turkey how it should be done.

Steve.

deacon · #10 (**permalink**) 11-12-2009, 07:12 PM

Well good luck with it. The bike has nothing to do with the trailer lol. That's my story when they stop me and I'm sticking to it.