- High-performance lithium ion battery with an extremely long service life ,- Use of UL/IEC certified brand-name cells: for increased safety ,- Safety electronics: for monitoring the charging and discharging cycle ,- Gold-plated contacts: for lower contact losses and corrosion prevention ,- Self-resetting thermal fuse (polyswitch/PTC): additional protection against short circuit and overload ,- Cells are fixed with a highly adhesive tape: for improved shock resistance and mechanical protection ,- Quality assurance due to continuous control: for top quality ,- 5-year guarantee , ,- Replacement for Sony NP-BX1 - Battery Designation: NP-BX1 ,- Model: Li-Ion ,- Power: 3,9 Wh ,- Capacity: 1090 mAh ,- Voltage: 3,6 V ,- Colour: Black ,- Device Specific: Yes ,- Recommended Use: Photo/Video ,- Suitable for: Sony ,- Usage: Digital Camera 5 Years Warranty