Adorama, the US photographic supplier, has recently released a new portable battery pack under the Flashpoint brand called the Blast Pack Portable Battery BP-960.
The unit has interchangeable, 4500mAh lithium modules called Blast Packs. Each one is capable of powering 1800 full-power shots per charge, with a two-second recycle rate. The battery pack comes with dual power plugs so you can power multiple flash units.
(Savvy readers may recognise this in another guise as the Godox Propac PB-960.)
Flashpoint’s Blast Pack Portable Battery is available now from Adorama for $249.95. More detailed information can found on their website.