Godox Propac Fast Fill Rechargeable Black Lithium 4500mah Pb960 Battery Pack Standby Single Battery for Flash Speedlite Selling by LETWING DIGITAL(Some customers inquiry whether the battery have batch number which flash havoc mentioned such battery is IMPROVED one and we checked our battery found all have BATCH NUMBER,example:5C12K) 4500mAh single battery pack(just pb960 single battery) All have through strict quality control before send. Other Pb960 Battery pack accessories including Q-type Bracket,Db-02 Cable etc Approx. 3 hours Battery charging time