Sony NP-FC11 Infolithium C Series Battery BRAND NEW!! The reason it's not in a retail package is becuase it was included with the purchase of digital camera along with 2 other batteries...this battery has not been used at all... bid with confidence.... This is a brand new, Sony InfoLITHIUM NP-FC11 battery. 3.6 volt/2.4Wh/780mAh. This lasts 15%-20% longer than the NP-FC10.