Ryobi ONE+ 18V Lithium-Ion Portable USB Power Source

This power source features dual USB ports with 1 Amp and 2.1 Amp outputs. It automatically powers off after 8 hours to conserve battery life and it is compatible with all RYOBI 18V batteries, it integrates into the RYOBI 18V ONE+ System. The price drops from $29.97 to $19.97 with free shipping.