The Berenstargh brand was specifically developed for the specialist trade and is a brand of Patona. Voltage: 3.6V, Capacity: 1090mAh, Cell type: Li-Ion. Compatible with the following camera types: Sony Cyber-shot DSC HX300, DSC HX50V, DSC RX1, DSC RX100, DSC RX100MII, DSC RX1r, DSC WX300, HDR HDRAS15. Designation of compatible original batteries: Sony NPBX1, NP-BX1. The Berenstargh Li-Ion battery offers maximum capacity and endurance for your camera. High-quality branded cells and cycle stability ensure longevity and low self-discharge even with infrequent use. Berenstargh batteries are 100% identical to the original battery and provide an excellent price-performance ratio. The Berenstargh batteries are developed under the strictest quality controls and have all the electronic safety features found in original batteries. Berenstargh gives your camera maximum power for long and beautiful photography experiences. By purchasing a Berenstargh battery, you acquire an excellent, refined product that will impress you day after day. A dream for every hobbyist or professional photographer!.