Buy from Amazon.com : http://fave.co/1CGZmM7
Quantum Turbo SC Camera Flash Battery Pack (TSC)
Product Description :
Fast consistent recycling for up to 400 full power flashes
Turbo SC is so small it can fit in a shirt pocket
Works with most professional portable flashes with a high voltage input
All Quantum power packs have fuel gauge lights that indicate remaining battery capacity or charging status
