Adafruit 3.8 / 1.3mm or 3.5 / 1.1mm to 5.5 / 2.1mm DC Jack Adapter Cable

This convenient adapter cable allows seamless connection between various solar panels and the optimized Solar Lithium Ion/Polymer charger. With compatibility for 3.8mm/1.3mm, 3.5mm/1.1mm, and 1.3mm DC to 2.1mm DC sizes, versatility is assured.

The adapter features a 2.1mm inner diameter (5.5mm outer diameter) plug, the most common type, yet adaptable for 1.1mm or 1.3mm ID (3.5-3.8mm OD) DC jacks.

Ingeniously designed with springy components, it accommodates varying plug sizes. Although a firm connection requires extra force, this ensures a secure fit.