iGreely SAE Plug to DC 5.5mm x 2.1mm Male Cables with SAE Polarity Reverse and DC 8mm Adapter for Automotive RV Solar Panel 14AWG 2ft/60cm

Long enough, fairly heavy gauge wire, seems ok.

Worked great for connecting Nature Power solar panels (SAE) to my Goal Zero Yeti 1000 (8mm).

Works well with yeti 400 5 mm to 8 mm adapter you can use harbor freight solar panels to charge. Also charged from 3/4 to full charge in less than 4 hrs

Heavy duty. Works with the BougeRV coolers.

Just the right size phone cable I need along with SAE for my solar panel