Nitecore USB Charger USN3 Pro for 2× Sony NP-F series batteries with LCD screen (NP-FM500H/NP-F730/NP-F750/NP-F770/NP-F970/NP-F550)

Nitecore USN3 Pro is a USB-powered dual-channel charger developed for Sony NP-F series rechargeable batteries. It accepts standard USB power sources and charges two NP-F batteries simultaneously, while the integrated LCD screen displays charging status, battery voltage and progress for each slot. The compact form factor and USB compatibility make this charger suitable for use on location, in studios, or during travel where NP-F batteries power cameras, LED lights and other equipment.

Advantages

The USN3 Pro provides simultaneous two-bay charging with individual monitoring on an LCD screen, allowing users to track voltage and charge progress for each battery independently. USB power input increases flexibility by enabling use with power banks, USB wall adapters or laptop USB ports. The charger is designed for safe charging of NP-F type cells and features slot-specific detection to accommodate several common NP-F sizes without the need for adapters.

Suitable for

• Photographers using NP-F powered camera grips and accessories
• Videographers and content creators with LED lights that accept NP-F batteries
• On-location shoots where portable USB power is preferred
• Users who need to charge two NP-F batteries at once and monitor individual charging status

Key specifications

• Compatible battery types: Sony NP-F series (FM500H, F730, F750, F770, F970, F550 and similar form factors)
• Number of channels: 2 independent charging slots
• Power input: standard USB power source (USB cable connection)
• Display: integrated LCD screen showing voltage and charge progress per slot
• Charging mode: simultaneous dual-channel charging with per-slot monitoring
• Form factor: compact, portable design suitable for travel and field use

How to use

Connect the USN3 Pro to a suitable USB power source using the supplied or compatible USB cable. Insert one or two NP-F series batteries into the slots following the polarity markings. The LCD screen will detect the battery type and display the charging status, voltage and progress for each slot. When charging is complete the display will indicate full charge; remove the batteries from the charger and disconnect the USB cable from the power source. For best results, use a USB power adapter that provides adequate current for dual-channel charging.

Usage recommendations

Use reputable USB power adapters or power banks that meet the required current output to ensure efficient dual-channel charging. Avoid charging in excessively hot or humid environments and follow battery manufacturer guidelines for storage and handling. To maintain battery lifespan, avoid leaving batteries connected to the charger for prolonged periods after reaching full charge.