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Rectangular silver battery pack with rounded edges, 6.3 by 3.9 by 1.8 inches

Profoto

Profoto 4S2P 80.4Wh Lithium-Ion Battery for Pro-B3 studio

SKU CH-741Y-D6B2T

Lithium-ion battery powers the Pro-B3 750Ws flash for up to 250 full-power flashes or 60 minutes continuous light, recharges in 90 minutes, and weighs 9.6 oz

  • Capture up to 250 full-power flashes per charge
  • 60 minutes continuous light for video work
  • Recharge fully in 90 minutes with 5 A charger
  • Lightweight 9.6 oz design for easy transport
  • Compact 6.3 x 3.9 x 1.8 in fits any kit

Battery capacity and intended use

The Profoto 4S2P 80.4Wh lithium-ion battery powers the Pro-B3 750Ws flash for location and studio work. It supplies enough energy for up to 250 full-power flashes or 60 minutes of continuous light. Photographers who need reliable off-grid power for a single Pro-B3 unit will find it fits the brief.

Sustained output and recharge cycle

The pack delivers consistent output throughout a session without voltage sag that cuts bursts short. A full recharge takes 90 minutes with the compatible 5A charger, so a short break restores the pack for another round. This cycle supports back-to-back shoots when a spare battery is rotated in.

Upgrade path and limitations

It replaces an exhausted or lost original battery for the Pro-B3 flash, restoring the system to its rated 250 flashes per charge. The jump is worth it when the old pack no longer holds a full 80.4Wh or when a second pack is needed for all-day coverage. It does not fit other Profoto heads or third-party strobes.

How it compares

Measured against everything we stock in Photo Lighting & Studio Flashes, at today’s prices. Recalculated every night.

Price $366.99
Pricier than about 90% of the 3,696 comparable items (median $57.99).

Specifications

No published specifications for this item yet.

Questions about this item

How much heat or noise does the 80.4Wh battery produce during a full day of Pro-B3 shooting?

The lithium-ion pack runs silently and generates only mild warmth even after 250 full-power flashes or 60 minutes of continuous light.

What separate charger is required to reach the 90-minute recharge time?

The Battery Charger 5A is the only unit that delivers the quoted 90-minute charge cycle.

Will the 6.3 x 3.9 x 1.8 inch pack fit the same Pro-B3 mount I already use?

Yes, it is designed specifically for the Pro-B3 750Ws flash and locks into the existing battery compartment without adapters.

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