Battery Pack ■ 4.0 Ah battery charges quickly and provides consistent power to every 20V Ronix Lasting Series tools ■ Light-weight compact design for ease of use ■ Easy to install and remove ■ Longer lifetime and improved performance for more run-time ■ High charge equivalent to 4.0 Ah ■ LED battery indicator allows immediate feedback on state of charge Model 8991 Battery Chemistry : Lithium Battery Voltage : 20V Battery Capacity : 4.0 Ah Supplied in : Ronix color box