2-Pack HP PhotoSmart 912 Battery with Universal Charger- Replacement HP C8873A Digital Camera Battery and Charger Replacement HP PhotoSmart 912 Battery and Charger Universal Charger features adjustable slider to charge different lithium-ion batteries (3.6V/3.7V/7.2V/7.4V) & AA/AAA batteries. Charge your battery by plugging the charger into a USB port. Lifetime Warranty HP C8873A Battery Specs - Capacity: 2200mAh, Voltage: 7.4V, Upstart Battery Brand On Sale for a Limited Time!