SmallRig 5748 Four-Channel Camera Battery Charger for DMW-BLK22

SmallRig 5748 Four-Channel Camera Battery Charger for DMW-BLK22 – Simultaneous charging of four DMW-BLK22 batteries

The SmallRig 5748 is a high-efficiency, high-power charger built for DMW-BLK22 camera batteries. It supports up to four dedicated channels so you can charge multiple batteries at once. The charger adapts intelligently to the connected USB-C adapter’s power and queues charging accordingly to deliver efficient, fast charging for busy shooting schedules.

Key features

• Four dedicated charging channels for simultaneous charging of four DMW-BLK22 batteries.
• High-power USB-C input with a maximum of 45W and full protocol compatibility, including support for 5V/1A adapters.
• Intelligent channel activation based on adapter voltage: 5V activates 1 channel, 9V activates 2 channels, 12V activates 3 channels, and 15V activates all 4 channels.
• Automatic prioritization: if a higher-voltage battery is inserted during charging, the system charges it first until full.
• Each output port includes short-circuit and overcurrent protection to help ensure safe operation.
• Compact and portable design for travel and daily use, providing reliable charging wherever you go.
• Certifications: Quality Inspection Report, FCC, CE, PSE, KC, and RCM.

Charging performance and recommendations

With a 2600mAh battery capacity example, the charger can fully charge four batteries in approximately three hours when supplied with sufficient power. For optimal performance, use a USB-C charger with an output power of 45W or higher. The unit supports Power Delivery (PD) protocols and adjusts the number of active channels to match the adapter’s voltage and available current.

Safety and behavior during charging

Each channel includes built-in protections against short circuits and overcurrent events, helping to maintain safe operation at all times. Moreover, the charger intelligently allocates power among channels based on the adapter’s capability, and it prioritizes higher-voltage batteries if they are inserted while other batteries are charging.

Technical specifications

Compatibility

• Compatible with cameras that use DMW-BLK22 batteries, including models such as DC-S5, DC-S5K, DC-S5II, DC-S5IIX, DC-S5M2, DC-S5M2X, DC-GH5M2, DC-GH6, DC-GH6L, and DC-GH7.

What’s in the box

• DMW-BLK22 Four-Channel Charger
• 65W USB-C to USB-C Charging Cable
• User Manual

Notes on use

For consistent fast charging and to activate all channels, provide the charger with a USB-C adapter capable of delivering 45W or more. If you use a lower-power adapter, the charger will still work but will activate fewer channels according to the adapter’s voltage and current capability.

FAQ

Question: How many batteries can this charger charge at once?
Answer: The charger has four dedicated channels and can charge up to four DMW-BLK22 batteries simultaneously, with channel activation depending on the USB-C adapter’s output.

Question: Which power adapter should I use for the fastest charging?
Answer: Use a USB-C Power Delivery adapter rated at 45W or higher to enable full performance and activate all four channels for the fastest charging times.

Question: Is the charger safe to leave connected overnight?
Answer: Each output includes short-circuit and overcurrent protection to enhance safety. However, always follow the user manual and manufacturer recommendations regarding unattended charging.

Question: Will the charger work with lower-power adapters like 5V/1A?
Answer: Yes. The charger supports full protocol compatibility, including lower-power adapters such as 5V/1A. In that case, however, only one channel will be activated and charging will proceed according to the available power.

Question: What happens if I insert a higher-voltage battery while other batteries are charging?
Answer: The charger prioritizes the higher-voltage battery and charges it first until it is fully charged, then continues charging the remaining batteries.