Servo problems

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Tymc13

RC Newbie
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Yesterday i installed a new esc and motor in my losi tenacity. It runs great but now at about 1/2 throttle and up my steering goes back and forth really fast , threatening to flip the vehicle. Any one know why ( the cause) and how to fix this ? Thank you
 
the esc bec is going into brown out.. a glitch buster might fix it but Id just add a ubec then remove + wire on esc plug to rx...I dont have faith in any esc bec had to many fail or get weak in critical times..like landing a 26' tabletop.....
 
Battery Eliminator Circuit. It converts power directly to power the servo can use bypassing the ESC's converter. With this conversion, you would cut the red (or yellow) wire in the ESC's lead. The BEC would then plug into the receiver's battery port.
 
ubec.. that supplies rx voltage to run servos and esc or even fans.https://www.aliexpress.com/item/4000037339219.html?src=bing&aff_short_key=UneMJZVf&isdl=y&aff_platform=true&albch=shopping&acnt=42005546&isdl=y&aff_short_key=UneMJZVf&albcp=373871275&albag=1308419064071836&slnk=&trgt=pla-4585375808811125&plac=&crea=81776241344382&netw=o&device=c&mtctp=e&utm_source=Bing&utm_medium=shopping&utm_campaign=PA_Bing_customlabel1_US_PC&utm_content=customlabel1%3D7&utm_term=ubec%2010%20amp&msclkid=bfd03c4ae0b114770dc46293d5dfdeec
 
Depending on the servo you have, you may be able to get away with a cheap one or get a castle 10A for $25. I ran one of those on my erevo for a while until I upgraded my esc to one with an 8Amp bec circuit in it.

Downside is you need the $20 program card to adjust it... which I already had:
https://www.amazon.com/Castle-Creations-Bec-Switching-Regulator/dp/B000MXAR12

This one says it puts out 6A with a jumper to set it to 5, 5.5 or 6V vs using a program card on the castle one:
https://www.amazon.com/ZTW-Continuous-5-5V-5-0V-Adjustable-Helicopter/dp/B071CHGWRM

I can't recommend the hobbywing/turnigy one though. I tried that one and it wasn't any better than the onboard bec. The one I ended up using was really cheap and worked great for the traxxas 2075 servo I was running at the time in my stampede, but it was a noname brand I can't find again on ebay. Was only like $15. I think it was a 3 amp or 5 amp.

This is the one I tried that sucked:
https://www.ebay.com/itm/RC-UBEC-5V...-Noise-BEC-Tool-For-RC-Models-US/202976372895

Took a video of it, the receiver would brown out with almost no load on the steering servo which was the 2075:

This is a video of the no-name one I used instead:
 
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works 4 me.. just copy and hit the go to.. but here..https://www.banggood.com/Hobbywing-3A-UBEC-5V-6V-Switch-Mode-BEC-For-RC-Models-p-915037.html?currency=USD&utm_source=bing_pa&utm_medium=cpc_bgs&utm_content=zouzou&utm_campaign=pa-us-toys-rcparts-pc&cur_warehouse=CN
 
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