The BL-5 is a battery chamber cover for use when powering the D800/D800E D-SLR with the MB-D12 Battery Pack and using the EN-EL18 rechargeable lithium Ion battery. Battery not included.
- Allows the use of an EN-EL18 series battery to power a MB-D12, MB-D17, or MB-D18 battery grip
- Helps achieve a faster shooting rate
- Increases battery life
- Protects the battery chamber when using an external power supply