The portable power source is brand new but open box as it is from a combo kit, it hasn't been used or refurbished. Listed below is information for the portable power source along with the model number. If you have any questions let me know and I'll respond asap.
Model - P743
(2) USB ports for convenient and simultaneous charging including (1) 1 Amp port and (1) 2.1 Amp port
Unit powers off after 8 hours of charging to conserve RYOBI battery life
Conveniently charge your smart devices anywhere without the hassle of finding an outlet
Compact so you can store in small spaces like toolboxes and bags
Snaps onto the top of all RYOBI 18V Batteries for easy portability