Sony NP-BN1 rechargeable Li-Ion battery. Recharges with the Sony BCTRN Battery Charger. The NPBN1 features Lithium-ion technology which ensures maximum battery life and maximum power. It’s also quick charging, so you’ll spend less time waiting and more time taking pictures. Only genuine InfoLITHIUM batteries reliably show you exactly how many minutes of power are left, so you'll never have to worry about unexpectedly running out of charge.
Compatible with the following Sony Cyber-shot digital cameras: