- 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 ,- 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-BY1 - Battery Designation: NP-BY1 ,- Model: Li-Ion ,- Power: 2.2 Wh ,- Capacity: 600 mAh ,- Voltage: 3,7 V ,- Colour: Black ,- Device Specific: Yes ,- Recommended Use: Photo/Video ,- Suitable for: Sony ,- Usage: Action Camera 5 Years Warranty