Yip Wai
sory, i cant speak english well...
how can i store or save the electric(from bike generator) to a battery or charger?
in solar power, it has solar charger controller, batteries and so on... so im using this concept in bike generator, so how can i store the electric to (something like) charger or batery?
Answer
A human-powered bicycle generator is not very difficult to hook to a battery if you don't mind how large the battery is. You want the battery to be able to absorb many more watts than the generator can produce. You want the battery voltage to be a few volts less than the generator produces when it is disconnected from the battery and being pedaled and measured at the 2 wires ( open circuit voltage output). For a typical bike generator, this voltage is usually 6 volts. If you use some other generator like a car alternator hooked to the bike, it may be more like 14 volts. Good choices for inexpensive batteries that are big enough would be a car or a motorcycle battery of either 6 volts for a bicycle generator or 12 volts for the larger alternator. Solar panels have a fancy charger circuit in front of their batteries because they are concerned about overcharging and burning up the batteries if you keep them charging in the sun for too many hours. With a bicycle, you will stop long before then because you will become tired. You could have a simple light come on to tell you to stop pedaling when the battery voltage got too high and the battery was full. A simple LED light circuit hooked between the positive and negative battery terminals will work. A red LED with a 7 volt Zener diode or a 14 volt Zener diode for the larger battery could be used as your full charge indicator. The light would come on when the battery voltage became higher than the Zener diode voltage. Make sure to put a resistor in line with the LED so the light does not run too bright, 100 Ohms is a good choice.
A human-powered bicycle generator is not very difficult to hook to a battery if you don't mind how large the battery is. You want the battery to be able to absorb many more watts than the generator can produce. You want the battery voltage to be a few volts less than the generator produces when it is disconnected from the battery and being pedaled and measured at the 2 wires ( open circuit voltage output). For a typical bike generator, this voltage is usually 6 volts. If you use some other generator like a car alternator hooked to the bike, it may be more like 14 volts. Good choices for inexpensive batteries that are big enough would be a car or a motorcycle battery of either 6 volts for a bicycle generator or 12 volts for the larger alternator. Solar panels have a fancy charger circuit in front of their batteries because they are concerned about overcharging and burning up the batteries if you keep them charging in the sun for too many hours. With a bicycle, you will stop long before then because you will become tired. You could have a simple light come on to tell you to stop pedaling when the battery voltage got too high and the battery was full. A simple LED light circuit hooked between the positive and negative battery terminals will work. A red LED with a 7 volt Zener diode or a 14 volt Zener diode for the larger battery could be used as your full charge indicator. The light would come on when the battery voltage became higher than the Zener diode voltage. Make sure to put a resistor in line with the LED so the light does not run too bright, 100 Ohms is a good choice.
Electric Bike?
Q. Hey I'm going to be moving a ways away from my kung fu school. So I will have to bike there but we are talking like 30 miles away at least. So my question is if anyone knows what that bike adapter kit is where it lets you switch between pedaling and driving?
Answer
there are allot of electric bikes and kits out there, but the problem is weight, performance, and distance per charge, remember, if you use those batteries for 10-20 Miles they are bone dry, and you have to pedal with an additional 80 pounds of weight, so you think, i ll add more batteries, but then you add more weight, then you need a bigger motor, so on and so forth, to have a more efficient setup you would need lighter batteries that last longer, lithium ion, or nickle metal hybrid, but they are very pricey, and you would need allot of them.
electric biking is not yet a transportation alternative, unless your going very short distance.
but if you wait, I'm currently working on a revolutionary concept for power assisted bicycles that will be available on the market for the summer of 2007 and will give you a 250 mile autonomy, and will only add 9.2lbs.
there are allot of electric bikes and kits out there, but the problem is weight, performance, and distance per charge, remember, if you use those batteries for 10-20 Miles they are bone dry, and you have to pedal with an additional 80 pounds of weight, so you think, i ll add more batteries, but then you add more weight, then you need a bigger motor, so on and so forth, to have a more efficient setup you would need lighter batteries that last longer, lithium ion, or nickle metal hybrid, but they are very pricey, and you would need allot of them.
electric biking is not yet a transportation alternative, unless your going very short distance.
but if you wait, I'm currently working on a revolutionary concept for power assisted bicycles that will be available on the market for the summer of 2007 and will give you a 250 mile autonomy, and will only add 9.2lbs.
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Title Post: how can i store or save the electric(from bike generator) to a battery or charger?
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Rating: 83% based on 9498 ratings. 4 user reviews.
Author: Unknown
Thanks For Coming T0 My Blog
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