External power for flashgun

[jamie-dm]

Does anyone have any recommendations on products to use for powering my sb900's with something other than as batteries. Hopefully increasing recycle times and no of flashes per charge!

Many thanks

 

[DemiLion]

As a starter for 10:

Nikon SD-9
Godox battery Pack
Strobeam DL-2/DL-4
Quantum Turbo Pack

The above are in order of cost. From the Quantum onwards it gets much pricier.

 

[acetone]

Not used one myself but Tronix SpeedFire