The EN-EL15b is a Rechargeable Lithium-ion battery for use with select Nikon cameras. It is designed to offer long life and consistent power, and can be charged or discharged at any time without developing memory effects
Reliable Power: A genuine Nikon rechargeable lithium-ion battery designed to provide long-lasting and consistent power for your compatible camera.
Memory-Free Technology: Charge or discharge the battery at any time without the risk of developing a "memory effect," ensuring maximum battery life and performance.
Versatile Charging Options: Can also be charged using the Nikon MH-25 or MH-25a battery chargers.
Wide Compatibility: This battery is cross-compatible with a range of Nikon DSLR and mirrorless cameras, serving as a spare or replacement. 
 
Compatible With : 
Z-series mirrorless cameras: Z 5, Z 6, Z 7, Z 6II, Z 7II
Professional DSLR cameras: D500, D600, D610, D750, D780, D800, D800E, D810, D810A, D850
DX-format DSLR cameras: D7000, D7100, D7200, D7500
 
Note: This is a slightly used product but in excellent condition. It is tested and is working perfectly. It is extracted from cameras that have surplus batteries.