Electric Motors?

Can a 3/4 HP electric motor ( from an old garage door opener ) have enough power to be put in a bike and get at least 10 MPH out of it. Also what batteries should i use, i think i have an 18v or 16v battery somewhere..

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NachoMahma8 years ago
. Probably. You may have to help it get moving, but it doesn't take much HP to maintain 10 mph. You'll probably need an inverter to supply 120 VAC (or whatever mains voltage is where you got the motor) to the motor.
Katarukito (author)  NachoMahma8 years ago
so i need a 120 V battery? oh and how much weight will 3/4 hp will able to carry at 10mph. thanks for the help
No, an inverter would convert the 12v DC to 120v AC. It's for when you have batteries, but you need to power something that normally plugs into the wall.
Katarukito (author)  skunkbait8 years ago
How much does the inverter cost
I'm not sure. One heavy enough to run a 3/4hp motor could easily be $100-$200, maybe more. I only have a 400w one and it cost like $40.
Katarukito (author)  skunkbait8 years ago
hmm then can I go for a 400w instead , maybe higher?
400w will be way too low. I really think 1000w-1500w would be a bare minimum.
Katarukito (author)  skunkbait8 years ago
but i saw someone using 400w on youtube yesterday
Maybe so. All I know is that from my experience, 400w won't run a power-drill. It might be enough to maintain your motors speed, but I think it would overload at start-up.
Katarukito (author)  skunkbait8 years ago
hm then whats the minimum W
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