The LR6/XWA or BF5 battery pack is a collection of AA alkaline manganese dioxide batteries, each delivering a voltage of 1.5 volts and having a capacity ranging from 2000mAh to 2600mAh. This pack comes with 4 cells, providing a total output of 7.2 volts when new but decreasing to around 6.9-7.2 volts after discharge.