Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Electric Bicycles forum. very nice. i like the trailers. they could be set up to put grocery bags and stuff on also. i ...
very nice. i like the trailers. they could be set up to put grocery bags and stuff on also. i need to make a trailer for mine. i like going to store with it but hard coming home if i get many items
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Deacon
I like your el. bikes and if they come out with a battery that will charge in say 5 to 10 min. and last say 100 miles then I'll jump on a electric. I'm collecting solar panels from work that are good but being thrown away because they are obsolete.
Cruiser
If you could mount a gas engine on that where it would be hidden and still have the el. that would be supper cool in my book and a little solar panel on the back to keep the batteries topped off. There I go again.
Norman
If I could just find a low cost high amp battery, I might have a great little errand runner. Fifteen miles an hour to run to the bank or the store would be more than enough. Just the darn batteries are too expensive for the power supply amounts. Carrying them on the little trailer seems to be the way to go with the battery thing. It's just the cost issue for me.
You ever thought about a deep cycle marine battery. They are pretty high amp and made to be charged and discharged. They are a little expensive though. I think the last one I bought was $70.00 at Wally World..................
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It crossed my mind, but It has to be 24volts so its two of them. would cost More than a gasoline engine. You would still have a range problem even these friction drives drain 20 to 30 amps . Best i can figure you divide the amps of the battery by 8 (they say six but it has not been my experience) to get amp hours. My lawn tractor battery ($20@) 180 amps are about 25 amp hours... range at 30amps would be about 3/4 hour at 10mph. About a 7 mile range. Last time I ran 2 of the motors to get me up the hills. One 20amp and one 30amp motor. It drained in five miles. I was trying to run just elect not much pedal power.
I think running it as one thirty amp or two 20 amp as I have it set up now will help a little. If I do a lot more pedaling, I think it might do a little better still. Actually today I am going to test it one more time with the new large but light weight framed (former) mountain bike. Thought I would see what it would do with just a 30amp motor and a lot of pedal power. It has a larger front drive sprocket and seems to zing along pretty good.
I have one run laid out that pretty much tells me if it has enough juice to run my short errands. One day I might go with a little better battery if I have to replace these. I'm thinking really cheap heavy amp auto battery since I use the trailer anyway. Just hate to chuck the perfectly good 180 amps that I have three off. (Thought for a while I could run 36volter)
More than you ever wanted to know about cheap batteries. If anyone knows more about these things please correct me. What I have learned is mostly trial and error stuff and might be completely wrong.
Re: my electric bicycle 
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