Matias Rod
Hi, I have a 450 watt electric bike, the max speed it reachs is of 45 kmph to 50 kmph, I would like to know if I can rise slowly the power to reach 60 kmph without severely damaging the engine. With the equation "P=V*I" I know that if i rise the voltage y can rise the power. But how can I do this on practice?
Here goes some data:
Engine: DC 450W. Min. Volt.: 42V+-0.5V. Max. current: 19A+-0.5A.
Battery: Lead Acid. 48V. 20AH.
Answer
Well, the easiest way would be putting a larger battery, with a higher voltage, but that will risk damaging the motor and the battery charge will be depleted much, much faster.
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Well, the easiest way would be putting a larger battery, with a higher voltage, but that will risk damaging the motor and the battery charge will be depleted much, much faster.
.
I'm building a 48V electric bike with four 12V batteries. Do I need to buy a DC/DC converter?
I'm not really sure what a DC/DC converter is good for, but all the electric vehicle website I've been looking at have them on there parts list. So I'm curious, what exactly is it used for and is it applicable for my situation?
Answer
no, you put the 4 batteries in series to get 48 volts, and connect that to the 48 volt motor. But you need a speed controller of some sort between the battery and the motor, else it will run at full speed all the time.
If you have a 24 volt motor, wire the batteries in series parallel to get 24 volts. Or just use 2 batteries.
.
no, you put the 4 batteries in series to get 48 volts, and connect that to the 48 volt motor. But you need a speed controller of some sort between the battery and the motor, else it will run at full speed all the time.
If you have a 24 volt motor, wire the batteries in series parallel to get 24 volts. Or just use 2 batteries.
.
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