Tested with another motor. How can i measure the voltage from the poles when I can't get powered on the esc? LOL With the VTX10R, he only doesn't run without sensor wire, but gets powered on... Thanks for the help btw

yeah, they wont run without the sensor wire plugged in.

So if you plug in the original vtx10r with the sensor wire, it does nothing?

if you plug in the new ESC, it wont even power on?

What do you mean with new and original, It's al about 1 esc. Indeed, I can't power him on, it looks like the battery is unplugged, it just don't give any reaction. no lights, no sounds

So, because I can't power him on, I can't test the motor, or the voltage from the poles... Can't do nothing really. A dead esc, no silly, little reaction when I press the V-port button.... Clear enough?

The text in red sounds like something is powering on... confused. If it does nothing, I would just send it in.

Sorry, I mean normally, when the Viper works correctly, I will send him in, but like said before, would like to know what it caused.

And to be more clear : I Can't Tun Him On ! No lights, No sounds

Drec -- as mentioned a few days ago -- if you have an issue with the unit, please send it in and let us take a look at it. What happen to it? Can't tell you until we get it. No one on the forum would be able to tell you for sure what happen unless they worked in our office and looked at the unit when it was sent in.

I would love to tell you and everyone that the products will never, ever fail. Reality is that it can happen. Was it a part out of spec?, Was it not assembled correctly? Was it plugged in backwards? Did it run too hot? Did a motor short go back into the esc? There is no definitive answer. Until its look at.

Will it ever happen again -- certainly hope not. We are lucky (knocking on fake wood desk) we have a pretty low return rate. So if its no working, if it meets the warranty criteria, please send it back and we will go through it.

I have a question. The track i race at does an e-buggy light. It is 1/8 scale buggy, but restricted to 2cell. Curently, i run a hacker sc combo with the 4.5 turn 4 pole. I have it geared really low to help with temps, but it starts getting a little hot towards the end of the race. Seeing the motor at 170 and esc at 145 after 8 minutes. The hacker 4.5 is a short can, i was wondering if you guys think the viper 4.5 xl would be better with the longer can even though it is 2 pole.

A 550 can would be better than a 540 size can. With the size and weight I would think a 4 pole like our new VF4 would be even better. Problem with 2 pole on that size is that you have to be very careful with gearing and how hard you drive it.

I have vx4.39 in my scte. Gave it a try in the buggy, but didnt work well as temps went to 190 on can in practice . I switched back to the hacker wich is a 550 as well but sensored. I didnt know if the longer can would make a difference.

How do you test the poles

a video would go a long way. makes it easier to see what is going on. Not a video of how to do it, but one of you doing it.

I understand the question. I just don't have the answer. I actually wanted to grab my VLink last night and see what mine says but I forgot. I'll try to check it tonight. I know that the correct version should display on the EZLink / Progage when you make a successful connection. I will have to check on your questions.

Do you have a progauge? As Bob says if you plug it into the progauge you definitely should see the version as it connects up. Unfortunately I didn't upgrade the same way you have so can't answer your specific question though.

@ Bob and Dave

Thank you for your replies. I don't have a progauge so I can't tell which firmware version my esc has ended up with. Anyway, it still works great, as it did before the upgrade, so I guess it doesn't matter

Thanks again

I'll still try to get to the bottom of it. But take my advice, grab an EZ Link. You'll love having the ability to change your esc at the track in under 30 seconds. No laptop needed. No counting lights needed. In fact you can do it while in line waiting for practice. It's the size of a credit card (just thicker).

If you don't mind spending a couple more bucks, get the Proguage. It adds in a few more features, my favorite of which is a battery checker. Not sure if you charged a battery? Simply plug the balance plug in and it tells you the overall voltage, each cell voltage, and the delta between them!