LUORNG 5Pcs 10A DC-099 Power Jack Cord Socket Threaded Female Mount Connector Adapter with Pre-soldered Wires and Waterproof Cover Cap, 5.5 x 2.1 MM

The finish are slightly cheap but is does the job.

These dc voltage female chassis-mount (plastic insulated) connectors are of really good quality, however I was disappointed that the mounting nuts were not included as advertised. That is an important part to be missing. I am keeping the product though and installed using it as a "press-fit" style. Not my optimum choice but doable.

These fit ebike perfectly! Dealer wanted me to buy a new battery, but this solved problem.

I'm not sure what the problem is but there's apparently 2 different 5.5 x 2.1 MM socket/plugs. Both appear identical but my vest wouldn'g plug into this socket. These installed with no problem on my motorcycles, but I had to graft a different male plug onto my heated vest to get it to plug in to this socket. After that problem it works fine.

I have a lithium ion battery for an electric bike that hasn't been charged for awhile. Thanks to this product I was able to save the 36v battery and will be able to use it for a driftkart I'm building.

Worked great to replace the damaged charge port on my E-Bike battery..