The cord to my LED Christmas tree was chewed through at the bottom of the power cord. The tree and it's 3 sections of lights are fine, but the power supply connector cord is the issue. I need to replace the 3-piece female connector part somehow. The 3 male ends are the 3 strands of lights on the 3 different sections of the tree. I believe the connectors are a 2.1mm size. Those 3 bottom female connectors in the picture are what I need to replace, which would need to ultimately connect into a DC power supply.

I don't understand what I can do to replace this and get the lights working. I know I need the DC power supply, but somehow it just needs to end in a 3-way female splitter so it can then connect to those 3 male connectors of the tree lights. Can't find what I'm looking for on Amazon. I feel like this is an easy and cheap fix.

Any help?

Just match the sides (there's probably a rough/ribbed and smooth side on that cable. Match them back up and splice them back. Those look like a pretty basic 12V connector with a pretty green cover to help hide them.

On the quick end, strip, twist and tape... on the other side, head over to Harbor Freight and pick up their solder station and teach yourself to solder with some help from YouTube

Pretty sure you also need the right polarity when splicing the wires, so check that too.

As others have said, just fix the wire. I've done similar with inflatables and replacing the LED inside. Even out the wires, split the cord a little ways back, slide some heat shrink on one end of one wire, solder wires together, cover joint with heat shrink and heat with heat gun or hair dryer. Repeat for other wire. Tape cord together again or cover with more heat shrink.

https://www.ebay.com/itm/296528767840

Thanks everyone!! Going to try the connector mentioned above and if that doesn't work, I'll brave splicing the wires.

Those are just standard barrel plugs it looks like. Matching its mm size and polarity (is positive power inside barrel or not) should get you to a common replacement part worst case. Cutting out bad chewed wire and splicing back together or extending with same gauge of wire if too much was chewed should work.

cut off the barrel connectors and use WAGO connectors, easy fix. one of the wires should have a rib or white print on the sheathing, just match that up.