Traxxas Summit 1/10 - Low power? Advize Appreciated.

[F1Rebel]

At start up, my summit will respond to trottle or steering for about half a second, then it goes to failsafe mode, because the receiver detects low voltage (red led blinking fast) and dies.

Even if I don't activate any servo, it dies (altough the led on the receiver remains green for about a second longer...)

What could be the reason ?
- I checked the batteries (in both transmitter and truck) and excluded those as rootcause : power remains around 10V for the standard pac's of 7 batteries.
- I'm also positive that I did not push the start button too long as to enter in the reconfiguration mode...

The weird thing is : I just baught it 2nd hand. And I saw it demonstrated perfectly before I decided to take it home....

And to be crystal clear : Process I follow : 1)switch on the transmitter. 2) Check the green led on receiver. 3) Connect the 2 battery sets 4) press for about 0,5s on the button next to EZ SETUP.
Then the Receiver LED lights up green for half a second/max 2 seconds. And then it starts flashing red (it flashes fast). I noticed that the weels came straight (which corresponds to failsafe)...

Good hind appreciated.

 

[B@3]

First thing that I would do is call Traxxas they have excellent customer service. Second I would try to rebind the reciever and see if that fixes the problem. If it is really going into failsafe mode because of low voltage even with fresh batteries then I'd question the ESC's BEC. One thing that you could try is disconnect the ESC from the reciever and plug in a receiver battery pack. Try the system like this to see what it does. If it works then I would bet that the BEC in the ESC took a crap. I haven't really heard of this happening to often with EVX-2, but with all electronic devices things go bad. Traxxas has life time replacement program too. Again my first step would be to call Traxxas they should be able to help.

 

[F1Rebel]

Hi B@3,
Thanks for spending the time to read and answer.
Much appreciated.
I will try your suggestions and report back. I expect to find the time over the weekend.

 

[summitcrawler]

i imagen it just needs to be re-binded.. i think i had the same problem awhile ago and thought my esc was toast.. then i tried everything and when i re-binded it, it worked.

i believe in the manual it tells you how to read the blinks to figure out whats wrong.. good luck!

 

[F1Rebel]

Some progress... Succeeded to get it working for about 1 minutes. And then it dies.
So only 2 options remain :
Or the batteries don't perform under load.
Or it goes in "low voltage failsafe" too soon.
What would be the easyest way to validate the performance of the batteries under load...
I mean it "looks" like they are OK (10V at open circuit nominal value would be 8.4V), but once they really have to perform, then internal resistance could cause voltage drop...
What would be the minimum voltage at which the failsafe is triggered ?
I would think that if at 16A load, the voltage remains higher than the "factory" failsafe trigger. Then I should quession the Esc's BEC.
The other case, would be obvious : voltage drop due to internal resistance of battery.
Does this make sense ? How to measure ? And what's the reference value : below which voltage does the failsafe gets triggered ? I'll dig into the manuals to figure that out...

 

[F1Rebel]

Mistery solved...
Apparently it were the steering servo's that drew away all current..
2 new servos and 90 bucks later, it all works again...
Cheerz and thanks for your help !

 

[raw111]

Sounds like your running a new one and just need to turn off low voltage detection