electric go kart help

[oscaryu1]

It won't last long lol... but it would work. I'd just go for 7aH's minimum.

I guarantee you'll love it. It's a whole new experience from petrol motors.

http://www.youtube.com/watch?v=txyDd3VvI9M

 

[Mackey]

17/21aH batteries are roughly 25-35 pounds. Your motor will be burnt to a crisp and magnets as good as cast iron when you're done going up a hill.

Is this the only problem with batteries with a high aH? Because I've got 2 18.3 aH battries which sum up to 24 pounds, which isn't much for a 500w motor, but is 18.3 aH over powered?

 

[r_chez_08]

i dont see how it should be a problem, as the scooter will have the weight of a person on it.

 

[oscaryu1]

Is this the only problem with batteries with a high aH? Because I've got 2 18.3 aH battries which sum up to 24 pounds, which isn't much for a 500w motor, but is 18.3 aH over powered?

In an electric powered vehicle, you want low gearing and an large motor.

Large motors suck up alot more current, but an underpowered motor will be under constant load to keep you moving, while a larger motor will move you at lower RPM's with ease, and allow you to sip amerage at high RPM's (virtually no load).

My scooter I'd say tops out at around 30, and has around 1000 watts, and 8:1 gearing.

It's running on 7aH batteries and you can ride for an hour nonstop, or even more depending on how heavy your HAND is

 

[Mackey]

Ah, I'll be running mine (GoKart) at 4:1, but like I said, 500w.

Heavy handed, btw

 

[Qmavam]

Ah, I'll be running mine (GoKart) at 4:1, but like I said, 500w.

Heavy handed, btw

I run my gokart at 3:1, but I have a more powerful motor
and four car batteries.
Mike

 

[Qmavam]

In an electric powered vehicle, you want low gearing and an large motor.

Large motors suck up alot more current, but an underpowered motor will be under constant load to keep you moving, while a larger motor will move you at lower RPM's with ease, and allow you to sip amperage at high RPM's (virtually no load).

My scooter I'd say tops out at around 30, and has around 1000 watts, and 8:1 gearing.

Hi oscaryu1,
I'm curious about your 8:1 gearing;
What is the diameter of your tire?
What is the maximum motor RPM?
Mike

 

[Mackey]

I run my gokart at 3:1, but I have a more powerful motor
and four car batteries.
Mike

I guess it's sort of similar then? I assume my kart is lighter, as I'm basing the frame on wood.

 

[kartermicah]

Hey I am also building a go kart but i want it to go about 30 mph or a little less like 27 mph. I am gonna be running a 48 volt system and each battery has about 12Ah. I do not want to pay more than 300 $ for a motor and a controller COMBINED. what do you guys think i should get. i was gonna get a 1000 watt motor but i think it might be to slow.