SOLVED: Ebike Isn't Doesnt Have Nearly As Much Torque Anymore

[pedlar]

Hey so first time posting here and I need some help figuring out what's going on with my ebike. It doesn have the torque it once had. And takes forever to accelerate

Motor:
QS273 3.5T
Battery: 72v40ah
Controller: Sabvoton 72200

The controller settings are fine. And I put in a new throttle. What else could it be? The pedal assist cable's disconnected but I don't think that could be it. Could it?

I'm at wits end with it. Not sure if it could be a software or hardware issue.

 

[E-HP]

Was it a gradual loss of power, or did it happen suddenly?

How's your tire pressure?

 

[pedlar]

Was it a gradual loss of power, or did it happen suddenly?

How's your tire pressure?

It doesnt lose power it just takes a long time to gain power. That's a good question. Lt me check tire pressure

 

[pedlar]

Was it a gradual loss of power, or did it happen suddenly?

How's your tire pressure?

It was at 25 PSI. That seems low will fill it up after I eat here

 

[E-HP]

after I eat here

sometimes that will do it too, lol

 

[pedlar]

sometimes that will do it too, lol

It helped but not a significant gain. Thinking it might be battery?

Like the amperage opens up at midrange but I’m getting no amperage off acceleration off throttle

 

[E-HP]

And you didn't change any settings? Is your peak phase current maxed out?

 

[pedlar]

And you didn't change any settings? Is your peak phase current maxed out?

Yeah I got my peak set at 300a anything after that and the wires get too hot

 

[E-HP]

Do you have a temp sensor? If your magnets weaken due to high temps, your torque will decrease.

 

[pedlar]

Do you have a temp sensor? If your magnets weaken due to high temps, your torque will decrease.

I do have a temp sensor. But I’ve disabled motor temp sensor in the settings. I’m thinking maybe my dropout needs to be adjust to be further back. Will let you know how that goes

 

[n00b]

It helped but not a significant gain. Thinking it might be battery?

Like the amperage opens up at midrange but I’m getting no amperage off acceleration off throttle

But uh, you just said you changed the throttle. Have you tried switching back to the old throttle or is it too much of a PITA?

 

[pedlar]

Update! Reset the factory Sabvoton settings and ran a hall angle. Hall angle was 66 degrees. While mine was set at 120. Now it takes off like a rocket. Thanks !!