3.70V,650mAh,Li-ion,Hi-quality Replacement Digital Camera Battery for FUJIFILM Finepix J50, FinePix V10, FinePix V10 Zoom, FUJIFILM FinePix F, Z Series, PENTAX Optio A10, A20, A30, A36, A40, E65, L20, T10, T20, W10, W20, WP, WPi, X, PENTAX Optio S Series, Compatible Part Numbers: NP-40, NP-40N, D-LI8, D-Li85 Voltage: 3.70V ///Capacity: 650mAh Battery Type: Li-ion///Color: French Grey Dimension: 40.28 x 35.28 x 6.10 mm///Weight: 56.70 g Product Type: Replacement Battery (Brand New) Condition: New, 1 year warranty! Please ensure the product(s) that you are going to buy fits the brand, model and part number of your device.