P3Solar (formerly Global Solar) 22700-3RC SAE to 2.5mm ID x 5.5mm OD Barrel Adapter
SAE to 2.5mm BARREL PLUG A 4 inch, 18 AWG zip cord cable. It has a standard SAE two prong connector on one end and a 2.5mmID x 5.5mmOD barrel plug on the other end. The SAE plug connects directly to the solar charger and the barrel plug connects to various electronic devices and battery packs.