The HP BT04 Long Life Battery, part number H4Q47AA, is a replacement power source for HP EliteBook Folio 9470m and 9480m notebooks.
Its four lithium-ion cells provide a stated capacity of 3520 mAh at a rated voltage of 14.8 V. These figures describe its cell configuration and electrical specifications for the supported notebook models.
Measuring 13.3 cm wide, 20.7 cm deep and 0.8 cm high, and weighing 335 g, it is sized for use with the specified EliteBook Folio computers.