AFX1 Posted April 17 Share Posted April 17 (edited) Hi guys, newbie here. I searched but could not find. OK, I wired it direct by taking the servo +&- wires and soldering them to the battery connector plug +&- with only the signal wire from RX to Servo.. When I tried to run the car all hell let loose! Servo would go mad even with the signal wire removed – wildly going from lock to lock and glitching like crazy. Put servo plug wiring back to standard and everything is fine. Advice please? Edited April 17 by AFX1 Quote Link to comment Share on other sites More sharing options...
.AJ. Posted April 17 Share Posted April 17 You need a shared ground, this is the kind of thing I’ve used/made in the past Red and black is to the lipo Yellow and black to the RX Yellow, red and black to the servo Quote Link to comment Share on other sites More sharing options...
AFX1 Posted April 17 Author Share Posted April 17 (edited) 2 hours ago, .AJ. said: You need a shared ground, this is the kind of thing I’ve used/made in the past Red and black is to the lipo Yellow and black to the RX Yellow, red and black to the servo I have read so much conflicting advice, many say you 'must' isolate the battery supply from the ESC supply (only one neutral). Some (including Hobbywing) say to do it as I did, some say Signal and Neutral from RX to Servo and just servo positive to battery connector or balance plug. I'll try it your way and see what happens. Edited April 17 by AFX1 Quote Link to comment Share on other sites More sharing options...
wolfie1 Posted April 17 Share Posted April 17 (edited) Just buy this thing and plug it in, 1 goes to the receiver 1 goes to power and the other goes to your servo, simples https://www.modelsport.co.uk/product/modelsport-rx-receiver-bypass-adapter-for-use-with-bec-443152 Edited April 17 by wolfie1 Quote Link to comment Share on other sites More sharing options...
markymarky Posted April 17 Share Posted April 17 Personally I would never wire the servo directly to the battery, what I have done in the past is connect the ESC to the receiver through one of these. https://www.amazon.co.uk/Servo-Splitter-cable-Lead-Female/dp/B06XCF4GN6 Then with any other servos I have removed the signal connector, connected the signal connector to the receiver and the battery connections to the splitter. Whilst it isn't "high" power if the servo only goes up to 7.4v or 8.4v and the ESC can be set to output either and the receiver can cope with that voltage that is how I have done it in the past. If it is a lipo with a JST connector on it I would just connect the JST connector to the splitter and then plug the traditional 3 pin connector into the receiver and then proceed as I said above. 1 Quote Link to comment Share on other sites More sharing options...
AFX1 Posted April 18 Author Share Posted April 18 markymarky After I bought it I found out my Hobbywing Quicrun 60A Brushless BEC only outputs 2A 6V whereas the Quicrun Brushed 1080 which I also have outputs 8.4V 3A. Quote Link to comment Share on other sites More sharing options...
AFX1 Posted April 18 Author Share Posted April 18 I’ve just wired it this way: Servo + & - direct to battery wires. Signal and – to RX ( - is siamesed). So RX is now grounded. It is far more stable than before but I’m still getting a severe glitch on the steering as I squeeze the throttle. Quote Link to comment Share on other sites More sharing options...
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