Solar Panel Extension Cable Wire Adapter

These wires give me more ranged to charge from my solar panels, which I appreciate.
Because they're thick wire, they help keep the electricity currents efficient.

Good extension cables for solar panels. 10 gauge is standard for most panels and these are rated for outdoor use that you want. Some may find shorter lengths like 3 foot long ones of little use, yet I've set up some 12V panels in series to be like a 24V and the 3 foot sections brings the connector from one close to the other for a run to controllers etc. FYI I've tried some portable panels using cheaper 14 gauge wires for my ~5 amps expected (over a 20 foot run) and got some power like 4A charge to the battery, but then I swapped out for a 10 gauge cable leaving everything else and got 5 amp charge. So that shows going with better wires can give you 20% more power where it may cost a bit more up front, but will be better in the long run. Some MC connectors have release devices built-in, but these don't (needing a release tool for disconnecting if needed).

This set of 10AWG cables with connectors work as expected and simple to connect. The cables feel durable and flexible enough to run between panels and controllers. Snap in the MC4 connections and you're good to go.

I ordered this cable to allow me to place solar panels on the roof of my steel building with 12’ side walls and it works great. I was able to run the cable under the eave and down to my work bench where I have multiple battery chargers. The cable is well made and works great. I am not an electrician or a solar power expert so I may not be the best judge of such things and I can’t provide any performance type numbers. However, I am very happy with this cable.

Summary: When it comes to buying wire/cable, there are lots of variables, so doing some homework is warranted. Aside from the "what size wire do I need", here are some other considerations: 1) pure vs. cladded wire, 2) jacket material (PVC, silicone), 3) single or dual (or more wires, 4) indoor/outdoor. Most of the wire I have reviewed has been used in extending a solar panel installation for optimal placement.

General Observations: Stranded wire will always be more flexible than solid single conductor (such as house wiring). For most applications, having some flexibility is desirable for ease of installation. For power transmission, pure vs. cladded is the preferred option, but will cost more. For outdoor or direct bury applications, you will want to select a suitable jacket material. I have left silicone wire out in the sun for a month, and it has faded (which is why UV rated jackets are desired in those applications).