XT90 connectors stuck
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- Posts: 7
- Joined: Jan 02 2019 9:44am
XT90 connectors stuck
Hello,
I was trying to troubleshoot loose contacts and pressed XT90 connectors too hard apparently. Now I cannot pull them apart. I tried to put hands on the wires directly and pull - still same.
I cannot remove the battery from my bike now. I would hate to damage the connectors as well since the battery is expensive.
What can I try? Could somebody please help?
I was trying to troubleshoot loose contacts and pressed XT90 connectors too hard apparently. Now I cannot pull them apart. I tried to put hands on the wires directly and pull - still same.
I cannot remove the battery from my bike now. I would hate to damage the connectors as well since the battery is expensive.
What can I try? Could somebody please help?
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- Posts: 47
- Joined: Aug 26 2018 10:55am
Re: XT90 connectors stuck
I'm not sure how you did that lol. So you are probably going to want to cut the wires on both sides of the connectors. Then replace the connectors.
Make sure after cutting each wire you put tape on it or cover the wire so you don't take the chance to cause a short 
You could also just cut one side off(preferably the batteries connector so you dont short the battery) and take a pair of pliers and try to pull the connector out while supporting the still wired connector so your not applying the force on the wires leading to your bike.


You could also just cut one side off(preferably the batteries connector so you dont short the battery) and take a pair of pliers and try to pull the connector out while supporting the still wired connector so your not applying the force on the wires leading to your bike.
Re: XT90 connectors stuck
There are a ton of cheap counterfeit xt connectors, look for Turnigy (from Hobby King) or Aomy connectors. I think that the real ones are great, cheap ones melt easily and get stuck.
VERY important to do only one wire at a time.
If you can, hack away at the plastic and get to the solder. If you have length to spare then just clip them.
VERY important to do only one wire at a time.
If you can, hack away at the plastic and get to the solder. If you have length to spare then just clip them.
Re: XT90 connectors stuck
my guess you have fake connectors and the barrels have melted due to overloading them.
cut them and fit original ones. if the space is there fit 1 size bigger.
cut them and fit original ones. if the space is there fit 1 size bigger.
Lithium beats liquid dinosaurs.
- spinningmagnets 100 GW
- Posts: 11878
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Re: XT90 connectors stuck
Between the red and black wires, cut only one, and then put tape over the stub on the battery side.
Then...cut the other wire. Wire cutters have steel blades, and if you cut both at the same time, it will immediately cause a huge short, and it may damage the battery and/or the BMS.
https://www.electricbike.com/matching-c ... ontroller/
Then...cut the other wire. Wire cutters have steel blades, and if you cut both at the same time, it will immediately cause a huge short, and it may damage the battery and/or the BMS.
https://www.electricbike.com/matching-c ... ontroller/
Re: XT90 connectors stuck
I prefer Turnigy bullet connectors. Easier to install and easier to connect/dis-connect.
Motomech '11 Motobecane Fathom team, frt. mounted, recycled SWX02 from a Jump rental, 14S (52V nom.) Turnigy LiPoly, PSW Power 9-FET 20A controller. Mean Well HLG-320H-54A, Schwalbe Marathon's, 27 to 28 MPH.
- dogman dan 100 GW
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Re: XT90 connectors stuck
Said twice, but never can say it too much. cut only one wire at a time. I'd say go to the hobby bullets, the big ones if you are melting plugs.
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bolt on longtail https://endless-sphere.com/forums/viewt ... =6&t=74584
The mixte long tail. https://endless-sphere.com/forums/viewt ... =6&t=74384
Beach cruiser converted to long tail. https://endless-sphere.com/forums/viewt ... r#p1045572
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- Posts: 7
- Joined: Jan 02 2019 9:44am
Re: XT90 connectors stuck
Thanks. When installing new connectors, would wrapping wires around each other be sufficient or welding them would be better?
Not sure what you meant by that. Is "hobby bullets" a manufacturer?dogman dan wrote: ↑Apr 21 2019 7:03amI'd say go to the hobby bullets, the big ones if you are melting plugs.
Re: XT90 connectors stuck
"hobby bullets" are referring to bullet style connectors from the website hobbyking.com They come in various sizes.
Commuter/Street Build viewtopic.php?f=6&t=98286:
Rocky Mountain Element
Magic Pie 4 front + Leafmotor 1500 rear w/ Infineon 4 Clone @ 200A phase
Samsung 40T 14S7P
Offroad Build viewtopic.php?f=6&t=102195:
2019 Rocky Mountain Blizzard 20
Cyclone "3kw" 13T motor to 36T chain ring then 32T chain ring to 11T-46T Cassette @ 100A phase
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Rocky Mountain Element
Magic Pie 4 front + Leafmotor 1500 rear w/ Infineon 4 Clone @ 200A phase
Samsung 40T 14S7P
Offroad Build viewtopic.php?f=6&t=102195:
2019 Rocky Mountain Blizzard 20
Cyclone "3kw" 13T motor to 36T chain ring then 32T chain ring to 11T-46T Cassette @ 100A phase
em3ev 14S5P 30Q or 14S6P 25R pack
Re: XT90 connectors stuck
montana2436 wrote: ↑Apr 22 2019 6:41amThanks. When installing new connectors, would wrapping wires around each other be sufficient or welding them would be better?
Solder the wiring, don't rely on wrapping any wiring.
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- Joined: Mar 27 2018 1:35pm
Re: XT90 connectors stuck
Have you tried the Supra X connectors? Its the same ones used on the Sur-Ron, Great looking connectors that you dont even have to solder. And holy cow, these handle 230A continuous! https://www.ebay.com/itm/RPPREB7808STS7 ... 3636437696
Re: XT90 connectors stuck
xt150 connectors from hobbyking.com ive heard they are good and im going to order some soon. they are basically bullet style connectors with a case over them.