When you want maximum stamina, the Jupio NP-FZ100 Ultra for Sony (CSO0100V2) is the choice for you. The second version (V2) of this battery now has an even higher capacity of 2600mAh / 18.7Wh, which is 14% more than the original. Just like all Jupio batteries, this Ultra version contains A-grade battery cells. Jupio products are extensively tested in our factory to ensure the premium quality and is underlined by a warranty of no less than 3 years!