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Affordable, reliable power for most handle-mounted flash units that use 6 "AA" batteries. (If your flash is shoe-mounted and uses four or five "AA" batteries see the Quantum QB1+ or QB1 COMPACT battery.)
Provides hundreds of full-power flashes and fast, consistent recycling time In many situations 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 time, even as battery charge is depleted.
The "fuel gauge" lights make monitoring battery capacity and charging a snap.
QB2 is rechargeable up to hundreds of times. Save hundreds of dollars on throw-away batteries, and help the environment.