FJ400 Battery: Performance and Care
FJ400 Performance & Sleep Modes
The FJ400 Lithium-Polymer Battery (14.8V 65Wh, 4400mAh) is capable of 480+ full-power flashes with
the modeling lamp disabled. In order to operate the FJ400 with the AC power supply, the FJ400 battery
must have a remaining charge of ≥ 25% capacity.
Auto-off engages at the following intervals:
DC Power: Off ~60min; Sleep ~30min.
AC Power: Off ~60min; Sleep ~30min.
FJ400 LED Battery Status Indicators
Press the Battery Status Button located on the FJ400 Battery to check the remaining charge capacity.
Illuminated LED Indicators reflect the following:
4 lights: 100% ~ 75%
3 lights: 74% ~ 50%
2 lights: 49% ~ 25%
1 light: 24% ~ 0%
0 lights: Detach battery and charge to full capacity.
FJ400 Charging & Life Expectancy
The average charge time is 2.5 hours from complete discharge. The FJ400 Lithium-Polymer Battery
(14.8V 65Wh, 4400mAh) will achieve at least 300 complete charge cycles. Continued usage beyond the
expected charge cycles will result in diminished performance and the ability to hold a charge. Avoid
charging and using the battery outside of the stated operating temperatures (32~104°F / 0~40°C) as it will
affect the overall performance of the battery and strobe. Preserve the longevity of the battery by storing
at roughly ~40% capacity at room temperature in a dry environment and recharge to this capacity at least
every 3 months when not being used.
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