HP Z VR Backpack Battery Pack (2-Pack)

The HP Z VR Backpack Battery Pack provides two external 73Wh, 8-cell lithium-ion batteries that are hot swappable. The batteries have four LED indicators so you can check the charge levels. The batteries provide up to one hour of high VR performance. When charged with the VR Backpack Battery Charger (sold separately), the approximate charge time for the two batteries is 80% in one hour and 100% in two hours.