The Nikon SD-9 Battery Pack is used to greatly increase the number of flash firings of the SB-900 Speedlight, and also shortens the recycling time. It has a total capacity to hold 8 AA batteries, but can also be used with just 4 batteries. It can be used with any type AA battery, but provides the fastest recycling time when used with 4 quality AA Ni-MH rechargeable batteries.
Total minimum flash recycling time can be as fast as 1.0 seconds when used with AA Ni-MH batteries, and the capacity per round of batteries is about doubled. Batteries must be in place in the flash in order to operate.
Battery Performance Chart
Batteries
Min. number of flashes/recycling time
AA-type Alkaline-manganese x 4
280/1.8 - 30 sec.
AA-type Lithium x 4
500/2.4 - 120 sec.
AA-type OxyrideTM x 4
280/1.4 - 30 sec.
AA-type Ni-MH (eneloop) x 4
350/1.1 - 30 sec.
AA-type Alkaline-manganese x 8
450/1.1 - 30 sec.
AA-type Lithium x 8
840/1.4 - 120 sec.
AA-type Oxyride x 8
440/1.0 - 30 sec.
AA-type Ni-MH (eneloop) x 8
520/1.0 - 30 sec.
Battery Performance Chart
Batteries
Min. number of flashes/recycling time
AA-type Alkaline-manganese x 4
280/1.8 - 30 sec.
AA-type Lithium x 4
500/2.4 - 120 sec.
AA-type OxyrideTM x 4
280/1.4 - 30 sec.
AA-type Ni-MH (eneloop) x 4
350/1.1 - 30 sec.
AA-type Alkaline-manganese x 8
450/1.1 - 30 sec.
AA-type Lithium x 8
840/1.4 - 120 sec.
AA-type Oxyride x 8
440/1.0 - 30 sec.
AA-type Ni-MH (eneloop) x 8
520/1.0 - 30 sec.
Reviews Nikon SD-9 Battery Pack for SB-900 SB-910 Speedlight