Mojave Mojave 6s shuts down with battery at 63%

[Todd Packer]

Does the BLX ESC have a shut down mechanism?

The last two times I’ve driven the truck the battery shuts off and both times the battery was at 63%.

Can this be changed on the ESC? Is this something ARRMA built into the ESC to prevent overheating or something?

 

[Overpowerrc]

what was the voltage? The 3s/6s lipo(s) shouldn’t go below 3.2v per cell and 4.2v charged

 

[Camaroboy383]

Yes two, one shutdown for lvc (low voltage) and one for thermal.. what are the temps? Is the esc flashing any codes when it shuts down?

 

[Andrew7xX]

I bet it's overheating.

 

[Todd Packer]

what was the voltage? The 3s/6s lipo(s) shouldn’t go below 3.2v per cell and 4.2v charged

The voltage was 3.9 per cell

 

[Outcastblxnut]

Thermal shut down. Are you running in grass

 

[Todd Packer]

Thermal shut down. Are you running in grass

Yep on grass and loose dirt

 

[IamTruTH]

I bet its a thermal shutdown.

 

[jkflow]

Let me guess, roughly 6-8 min into it?
Thermal shut-down, you are asking too much or add better fans.

 

[Todd Packer]

Let me guess, roughly 6-8 min into it?
Thermal shut-down, you are asking too much or add better fans.

Actually around maybe 15 minutes in

 

[jkflow]

Nothing to worry about, just annoying. Give it a rest for a minute every 5-10 min and you will be fine or wait for colder weather.
Most likley you will be cooking your motor though and that will fail soon. ESC has thermal protection, motor does not.
Add a fan, plenty of threads on this topic. Yeah racing or powerhobby dual fan for the motor are commonly used.

 

[Todd Packer]

It was my ESC. I ran the truck through a mud patch awhile back I didn’t get all the mud out. Plus the fan was broken on it I can’t believe I didn’t notice this sooner. It’s a miracle everything didn’t burn out. Ordered a new BLX 185 ESC, Power Hobby Heat Sink for the motor and the sock thing for the chassis to keep all the dirt and grass out.

 

[Todd Packer]

Took the Mojave out yesterday and the power now is unbelievable. No more shutdowns.

 

[jkflow]

Whenever you get the truck wet i.e. mud, you have to do a thorough cleaning. Fans should be checked after and prior each run. At least that is how I do it. Moisture is a killer even on sealed bearings.

 

[ZaydArrma1/7]

Does the BLX ESC have a shut down mechanism?

The last two times I’ve driven the truck the battery shuts off and both times the battery was at 63%.

Can this be changed on the ESC? Is this something ARRMA built into the ESC to prevent overheating or something?

Hi Todd,
I am having the same issue with my Arrma Mojava 6s,
After 5 min it won’t go anywhere but the wheel turns, and then if I unplug the battery and plug it back in it works for few minutes and then don’t move.
Also going on reverse automatically!
I was looking into some 7 channel gyro receiver.
any suggestions?

I am driving on grass, 2x 3s battery

 

[jkflow]

This thread is about 3 years old, scary that I'm still around

The ESC is telling you why it shut down, look at the blinking LED code. It will repeat.
It sounds like you have LVC shutoff, but only you would be able to tell us by looking at the code.

Radiolink is my go-to radio/receiver combo. Cheap and great setup. Take the RC6GS route and you can pick any receiver.

Throw away that RTR stuff or save it for a rainy day.