About e-bike's motor, what is the difference between 500W and 350W????

[Street Ryderz]

It's not hard you seem to confuse AVERAGE with max!The continuous average is whats rated then there is a safety zone so that if you load it up you dont cook the controller! the manufactures don't really give a sufficient buffer though.when I build ebikes for customers with tight budget i recommend that they use a controller that is 20 percent higher output to get the max out of motor and still have a good buffer!

 

[KCvale]

Well, you can get some decent speed and range @36V 360W with gear help.

Micargi 3-speed Rover with SBP electric kit, but a wimpy 36V 'bottle' battery.
Good for ~20 miles at ~22mph with no pedal help.

The motor and controller can take huge voltage and current, but will run even small power just fine.

My point is don't limit yourself to pressing the limits of your motor and controller as you never want to worry about adding more battery power like this example.

I had a big square 48V LI battery on hand slated for trike, but I shoved in this bike with same motor/controller in the above SBP e-bike parts 3-speed.

Electra 7-speed bike.
53V LI battery.
1680W 48V motor.
Programmable controller.
0~40 mph in ~10 seconds.
~40 mile range between charges.

It was too funny when the customer, a kid, took delivery.
Though he was warned to take it easy off the line he didn't get 10' before for flipping off the back from a wheelie.

He was geared up and didn't get hurt, but it was sure a wake-up call to him about how much instant power there was.

 

[wheelbender6]

I read somewhere that the engine watt rating was a product of how thick the winding wire is within the motor.
Thicker winding wire will accept more watts without overheating.
Thinner winding wire overheats with fewer watts applied, bit it is more efficient at lower wattage.

 

[chachacharles]

https://www.amazon.com/Addmotor-Ele...933295&sr=8-4&keywords=addmotor+electric+bike

I think this can fit you .

 

[KCvale]

Isn't that just 'cute' hehe ;-}

 

[CrazyDan]

Lol I swear this chacharles guy works for addmotor

 

[DrkAngel]

Electric motors are rated 350w, 500w etc by watts of power output, not input!
A 500w motor can input 2700w briefly during acceleration from a stop.
or
Suffering up a steep hill at slow speed - with resulting smoke and melt down ...

 

[Morgan bro]

Appreciate all of you. Thank you ! I gain a lot. But i still have a question about the front fork. Somebody could help? Here is my question link: http://motoredbikes.com/threads/which-brand-of-the-front-fork-is-the-best-for-the-fat-e-bike.49082/

 

[darwin]

OK let's break this down using the KISS principle. More watts = more power. Battery rating of 10ah is better than say 8ah rating which means more capacity. Each one that increases will cost more.

 

[Street Ryderz]

Straight up!!!