High capacity Li-ion rechargeable battery pack. 2500mAh capacity. 7.4 volts. Operate 35+ hours between charges in power saver mode. Fits AT-D168UV. Specifications: Battery Capacity: 2500mAh Battery Voltage: 7.4V Compatible Radio: AT-D168UV Additional Model #'s 221-BAT-168 221-BAT168 BAT-168 BAT168