HobbyWing EZRun 80A Review

[mjderstine]

awesome, now i can get the card, and the esc at one awesome store. good stuff.

[Joey]

Any news on if it handles 5s????????????

[BrianG]

I did run it a little bit on 5s. It arms and runs. Just don't know for how long. I didn't want to run it for too long as it was on a 1512/2d and the current would be rather high.

[lincpimp]

Has anyone tried this with a sensored motor yet?

[BrianG]

Sensored? What's that?

[Joey]

Originally Posted by BrianG

I did run it a little bit on 5s. It arms and runs. Just don't know for how long. I didn't want to run it for too long as it was on a 1512/2d and the current would be rather high.

Wouldnt the current be lower on 5S than 4S?

[BrianG]

Not if the gearing and the motor is the same. A=V/R. If voltage goes up, and resistance stays the same, current will go up. I'd have to drop gearing and/or use a lower kv motor (increasing R) to reduce current.

[himalaya]

Originally Posted by BrianG

Not if the gearing and the motor is the same. A=V/R. If voltage goes up, and resistance stays the same, current will go up. I'd have to drop gearing and/or use a lower kv motor (reducing R) to reduce current.

Guess you were trying to say (increasing R & inductance) to reduce current.

[BrianG]

lol, yeah, I meant increasing R...original post edited.

I have an excuse: it was late and I was tired.

[Joey]

Originally Posted by BrianG

Not if the gearing and the motor is the same. A=V/R. If voltage goes up, and resistance stays the same, current will go up. I'd have to drop gearing and/or use a lower kv motor (increasing R) to reduce current.

But Power = current X voltage ---- P=IV

So to produce the same power with higher voltage, current drops. In effect this equation is more direct to the VI relationship than I = V/R isnt it?

[littlegiant]

Originally Posted by Joey

But Power = current X voltage ---- P=IV

So to produce the same power with higher voltage, current drops. In effect this equation is more direct to the VI relationship than I = V/R isnt it?

If u are running on 5S without changing your gearing, your truck will be running faster. Which means that the power is higher. P=IV and so your current will definitely be higher.

In order for your 5S to have a lower current than a 4S, it should be geared to your current 4S speeds. If your 5S is running at a higher speed, you are just running your motor at a higher wattage.

[Cain]

Has anyone taken a look at the speedpassion ESC internals and compared it to this one? Have heard that they are basically the same.

[lutach]

Originally Posted by Cain

Has anyone taken a look at the speedpassion ESC internals and compared it to this one? Have heard that they are basically the same.

They are the same.

[Cain]

got a link to this discussion?

[lutach]

Originally Posted by Cain

got a link to this discussion?

There's no link, it's just the facts. You can also ask Hobbywing who's a member of RCM.