Product Information
Reliable Power for Studio and On-the-Go Shoots
Experience uninterrupted creativity with the Westcott FJ Pro AC/DC Battery & Power Adapter, specifically designed for FJ400 II and FJ800 strobes. This dependable power source ensures consistent performance, delivering over 550 full-power flashes per charge for the FJ400 II and more than 250 flashes for the FJ800. Whether you're capturing moments in the studio or chasing the perfect shot on location, this battery is engineered to keep you powered through every frame.

Lightweight and Built for Convenience
Portability meets practicality with the FJ Pro Battery. Weighing a mere 1.1 lbs (0.5 kg), its compact design integrates effortlessly into your gear bag, making it an ideal companion for travel and location shoots. Its robust build ensures reliable performance, no matter where your photography journey takes you.
Fast Recharge, Maximum Efficiency
Downtime is a thing of the past with the FJ Pro Battery. Recharge in just 1.5 hours and get back to shooting without missing a beat. LED charge indicators keep you informed about the battery's status at a glance, so you can plan your sessions with confidence and precision.
Flexible Power for Every Scenario
The built-in AC/DC flexibility of the FJ Pro Battery ensures you're ready for any shooting environment. Trickle-charge functionality allows for continuous power during extended sessions, while its durable 29.6V, 74Wh capacity guarantees reliable performance through over 300 charge cycles. It's the power solution every professional photographer can depend on.
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FJ Pro AC/DC Battery
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Power Adapter & Cord
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Limited 1-Year Warranty
| Battery | |
|---|---|
| Flashes per Charge | FJ400 II: 550+ at Full Power FJ800: 250+ at Full Power |
| Battery Type | FJ Pro AC/DC Li-ion Battery |
| Battery Capacity | 74Wh, 2500mAh |
| Battery Voltage | 29.6V |
| Charge Power | DC 33.6V, 2A |
| Battery Removable | Yes |
| Charge Time | ~1.5 Hours |
| Charge Cycles | 300+ (@80% after 300 cycles) |
| AC Power Requirement | Battery Level ≥ 25% |
| Electrical | |
|---|---|
| Battery Type | AC/DC Lithium-Ion |
| Battery Mount | FJ800 Strobe; FJ400 II Strobe |
| Cable Port | Barrel (Charging) |
| Cooling | Passive |
| Operating Temp. | 32° to 113°F / 0° to 45°C |
| Power Cord | 9.5' / 2.9m |
| Power Region | Type B (US) |
| Power Supply | 100-240 VAC, 50/60 Hz 1.5A Max |
| Certifications | FJ Pro Battery: CE, RoHS AC Adapter: CE, cETLus, RoHS |
| General | |
|---|---|
| Compatibility | FJ800 Strobe; FJ400 II Strobe |
| Dimensions | 4.2 × 3.9 × 2.1" / 10.7 × 9.9 × 5.3 cm |
| Weight | 1.1 lbs / 0.5 kg |
| Materials | Nylon, Plastic, Aluminum, Rubber, Electrical Components |




