Features:
Power: 7.2 V, 15.8 Wh, 2,200 mAh
STAMINA super-long battery life
Lithium-ion Cells with No 'Memory Effect'
Highly efficient, compact and light-weight
Built-in Microprocessor communicates with camera, and accurately indicates remaining battery time in minutes.
Environmentally-friendly: 100% free of lead, cadmium and mercury
Sony recommends you use only InfoLITHIUM batteries with products displaying the InfoLITHIUM mark