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Profoto Li-Ion Battery MkII for B1 and B1X AirTTL Flash showing compact black design and Profoto logo.

Profoto Li-Ion Battery MkII for B1 & B1X AirTTL Flash

Brand: Profoto

SKU: 100399

GTIN: 7340027545157

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The Profoto Li-Ion Battery MkII for B1 & B1X AirTTL Flash is a high-capacity rechargeable battery built for reliability, speed, and endurance. Designed specifically for the Profoto B1 and B1X off-camera flashes, it delivers consistent power for long shoots and fast recycling times. With an upgraded design and improved efficiency, this MkII version ensures maximum performance in demanding lighting environments, both in the studio and on location.

  • Compatible with Profoto B1 and B1X AirTTL flashes
  • Upgraded MkII design for enhanced reliability and power management
  • Provides up to 325 full-power flashes per charge
  • Quick recharge time when used with Profoto 4.5A Fast Charger
  • Easy battery swap with secure lock mechanism
  • Lightweight and airline-approved for travel

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Power In All The Right Places

Lithium-Ion Battery for B1 and B1X AirTTL Flash Heads from Profoto will give you up to 325 full-power flashes and thousands of minimum power flashes on a 2.5-hour charge from the 2.8A multi-voltage charger. The 4.5A quick charger shortens that time to 1.5 hours. Fuel-gauge-type LEDs on the battery and both the optional chargers allow you to monitor the charging progress.

  • 325 Full-Power Flashes
  • Charges in 1.5 Hours with 4.5A Charger
  • Charges in 2.5 Hours with 2.8A Charger
  • Charge Status LEDs

FAQs

How much more capacity do I get with the new battery?

The nominal Ah rating is increased from 3 Ah to 5 Ah which is a 50% increase!

The number of full power flashes increases from 220 to 325 per battery charge and the run time in standby or with modelling light on extends by 67%.

Can I use my old B1 batteries with B1X?

Yes you can!

Can I use the same chargers for the new and the old battery?

Yes

Is the charging time the same for the new battery?

The charging time is slightly longer when charging an empty battery.

With battery charger 2.8 A charging time increases from max 2 hours to max 2.5 hours.

With battery charger 4.5 A charging time increases from max 1 hour to max 1.5 hours.

With car charger 1.8 A charging time increases from max 2 hours to max 3 hours.

How does the size and weight of the new battery compare with the B1 battery?

The size and weight is exactly the same.