SP140 Battery Error

Have any of you guys seen this issue yet? After an awesome flight last weekend I flew right at an hour it died over the LZ and landed fine. I disconnected the battery and re connected it to see if it would say how long my flight time was and saw this but figured it was dead. Charged it this week and got theses results: Battery 100%- Connect power - controller boots up- no beep from esc on start up- no beeps saying it’s connected- but will arm and disarm however it won’t do anything.

Went over a few checks per @glydrfreak

-Blue light is on inside throttle.
-I checked all Plugs twice.
-Checked voltage between black and yellow. 4.96
-Checked voltage between yellow and white 10.27
-Checked voltage between yellow and red and it changes when I squeeze the throttle.
-Checked voltage between orange and black 3.12.

Seems as if the esc is sending an incorrect readout or telemetry back to the controller.

On two previous flights it randomly disarmed at cruise power.
1.30TT on unit.

Any ideas?

Also, I Manually Checked battery voltage on the battery at the connector. 99.1v


Back working by simply re-loading the firmware. Not really sure what happened or why it did that.


Hmm, I’m doubtfull that reloading the firmware actually fixed the issue. Sounds more like you have a loose pin or loose connection at the ESC. Mine did that after I extended my cable for right hand throttle operation until I improve the connection by soldering directly to the pins on the ESC.

I checked all connections thoroughly. Like 4 times… lol whatever it was it seems to be okay for the time being.

So you don’t use a connector anymore at the esc, your throttle wires are soldered directly to esc pins?

Yes, I soldered the pins directly to the ESC, but i have a short, 3" harness section with an 8 pin screw threaded connector. So i can still remove or replace the throttle cable, but there is now a firm screw thread holding the connector locked.

1 Like

That sounds good. I might do something similar, but go with an automotive type waterproof connector. I have all the crimping tools for those type connector pins. And they work great on cars bouncing down the road.

Well, updated the firmware on my new throttle. Still getting battery error, no response from esc, motor.

Today checked to see what my ESC firmware version was. Thought I could see just by looking at the usb Drive when it connected on my laptop. Unfortunately it didn’t show, I had no internet connection in my shop and hadn’t downloaded the ESC configuration yet. Disconnected from ESC. Decided to connect the battery again, and out of nowhere hear the arming beeps on throttle controller. Armed throttle and gave it a squeeze. Motor moved a little, but didn’t turn. I spun it by hand and gave some throttle and she kicked in. Runs in all modes, cruise works. Drained the full battery by running on cruise with no prop. Ran for an hour and lowered it 3 volts I think. Tried other battery and works as well. Yay. I guess hooking up ESC to usb on laptop was enough to wake up my ESC