Quasar Science Quantum QB1PLUS Battery 1+

Quantum QB1+ Battery. Affordable, reliable power for most shoe-mounted flash units that use 4 or 5 "AA". (If your flash is handle-mounted and uses six "AA" batteries see the Quantum QB2 battery.) Provides hundreds of flashes and fast, consistent recycling time. In many situation, when using your flash in automatic / TTL mode, and where full power is unnecessary, you can expect over 1,000 flashes. 50% faster recycling than "AA" batteries, and consistently fast recycling times, even as battery charge is depleted. The "fuel gauge" lights make monitoring battery capacity and charging a snap. QB1+ is rechargeable up to hundreds of times. Save hundreds of dollars on throw-away batteries, and help the environment.