Assembling Powerpole Connectors
These simple instructions assume that you are using Red-Black "zip" cord with stranded conductors (12 to 16 gauge).
Soldering Powerpole Contacts
Use your wire stripper to prepare both conductors of one end of the length of zip cord. I strip each conductor back 1/4".

Place the first contact over the stripped Red wire. Note the orientation of the contact's "blade" since there's only one way the contact will fit into the housing.
Position the zip cord and contact on a flat surface suitable for soldering and secure it for soldering with something heavy.
With a medium wattage soldering iron*, carefully apply heat to the contact. Within a few seconds apply solder and allow it to flow into the contact to completely "wet" the stranded conductors hidden inside the contact.
* I use a 40 watt pencil type iron with good success.
Once the solder appears where the insulation meets the contact, you've probably added enough solder to ensure a good connection.
Allow the contact to cool. Don't bump the wire or contact while it's
cooling or you risk creating a cold solder joint that might fail later
on.
Once the contact and wire has cooled, repeat the process with the
Black wire and then follow the steps below to install the contact into
the Powerpole housing.
Assembling the Powerpole Contacts into the Housings
Before inserting the pair of contacts into the housings, it's a real good idea to clean soldering residue off the contacts. Note the brown gunk on the contacts in the picture above.
Align the contacts with the Red and Black Powerpole housings as shown below. Reminder: There's only one way the contacts will fit into the housings.

Keeping the contacts straight, begin to insert them (together) into the Red and Black housings.

Slide the contacts in a little more and with a little luck, you'll hear two distinct "clicks" as the contacts lock into the housings.
You can test the "lock" by tugging a bit on the wires while holding the housings in your other hand.

That's all there's to it. Once you get the hang of it, you should be able to complete the soldering and assembly of a pair of Powerpoles in two minutes or less.

Hopefully, you'll find my instructions easy to follow. However, if you don't like my instructions, there are others to be found on the internet. You can also check out
Anderson Power Product's assembly instructions.