No power
 

I have an electric off-road arrma raider. It has been sitting for a few months and I decided to do some laps with it the other day and I discover that even after fully charging the batteries, when I switch it on the car has now power to anything, we checked the battery was putting out the correct 8 volts and that there was continuity in every other section of circuit. We just can’t figure this one out. It was running before I put it away. I’ve tried rebinding the remote aswell but that obviously doesn’t work as there is no power to the receiver. If anyone can advise me on what I should do it would be much appreciated

Edit: thanks for all your comments, much appreciated. I have not attempted the seperate receiver powering as I don’t believe this will fix anything due to the fact the ESC is not showing any lights when switched on meaning it isn’t getting any power either. I think perhaps the switch is broken or the wires from the switch to the ESC are broken as there is some wire damage, however I think this is unlikely as there is continuity? or the wires from the battery connection to ESC are broken due to the pulling on them when disconnecting? If the switch is broken could bypassing the switch work, or would this jeopardise the system. At this point I’m clutching at straws trying to hold out from buying a new ESC

Start looking for a loose wire or a bad solder joint. Good luck.

No power to receiver? One simple debug step is unplug the speed control from the receiver and then power the receiver directly with a battery in the 6V range. 4 AAs are fine. See if you can get steering control. Occasionally the bec in the speed control will fail, outboard units are readily available.

rebind radio and receiver..

if your going to do what dave said make sure you remove center esc wire on the rx plug. thats the +

Or you can do what Dave said and unplug the ESC.....

and how will esc get any voltage thru osmosis?

:tire: Another thing worth doing is recalibrating the ESC. If the throttle trim has been bumped since the last time you used the vehicle, it may not be sitting at the proper neutral point and so may not turn on- but if this were the case you would be currently getting some lights on the esc, but I think most ESCs would still power the steering servo at this point.

Agreed, assuming the separate battery test gets radio and steering going (batt can go in any empty receiver slot). The red center wire connector is held in by a tab on the side, be sure to insulate it, shrink wrap etc, and secure it. Then plug it in and see if the speed control will work.