What is an np 120, and how much does it cost?

An NP-120 is a Lithium ion rechargeable battery compatible with a variety of digital cameras, but most commonly the F10. Price varies from retailer to retailer, but you can see it here on Amazon: Amazon.com/Fujifilm-Lithium-Rechargeable-Battery-Digital/dp/B0000ZH09O">http://www.Amazon.com/Fujifilm-Lithium-Rechargeable-Battery-Digital/dp/B0000ZH09O for a reasonable price.