SmallRig 3581B V-Mount Battery Mini VB155

SmallRig 3581B VB155 Mini V-Mount Battery

The SmallRig 3581B VB155 is a compact V-mount battery designed to deliver reliable power in a streamlined, travel-friendly form. Its highly integrated construction reduces bulk and keeps the battery easy to carry, while premium LG A-grade 18650 high-discharge cells help ensure accurate capacity, excellent cycle performance, and dependable stability.

With a wide range of outputs and inputs, this battery is built to support multiple devices at once. It features BP, D-Tap, 8V DC output, 12V DC output, USB-C, and USB-A ports, making it a versatile power solution for cameras, mirrorless systems, monitors, transmitters, LED lights, smartphones, tablets, laptops, and more.

Inside, an advanced charging protocol chip, MCU, boost/buck control chip, and Battery Management System work together to provide multiple layers of protection, including safeguards against overcurrent, short circuit, overheating, and overvoltage. It also supports fast-charging standards such as PD, QC, and PPS, and enables bidirectional 100W USB-C PD charging for efficient power management.

The housing is made from flame-retardant PC material for added durability, heat resistance, and improved safety. A bright OLED display gives you clear readouts for battery level, remaining runtime, voltage, power, and other key information, so you can monitor performance at a glance. A smart power button makes operation quick and intuitive.

Key Features

• 100W max fast charging with intelligent BMS support; fully charged in about 3 hours
• High-quality LG cells for safe, stable performance through repeated charge and discharge cycles
• Compact, highly integrated design for lower weight and better portability
• Multiple outputs and inputs: BP x1, USB-C x1, D-Tap x1, USB-A x1, 8V OUT x1, 12V OUT x1
• Independent circuit design supports simultaneous charging for USB-C and USB-A devices
• Flame-retardant PC exterior with strong impact resistance, heat resistance, and fire safety
• High-visibility OLED screen for precise power and battery-status monitoring
• Smart power switch for fast and easy startup or shutdown

Specifications

• Material: Flame-retardant PC
• Capacity: 14.54V, 10200mAh, 148.308Wh
• Rated discharge power: 155W
• Input: USB-C 100W max / D-Tap / BP 6.8A max
• Output: USB-C 5V 3A, 9V 3A, 12V 3A, 15V 3A, 20V 5A max
• USB-A output: 5V 3A, 9V 3A, 12V 2A max
• BP/D-Tap output: 10A max
• 8V output: 8V 3A max
• 12V output: 12V 3A max
• Charging protocols: USB-C PD3.0 / QC2.0 / QC3.0 / PPS / DCP-1.5A / Apple 2.4A; USB-A QC2.0 / QC3.0 / DCP-1.5A / Apple 2.4A
• Cut-off voltage: 11.2V
• Operating temperature: -15°C to 60°C
• Charging temperature: 0°C to 45°C
• Optional charging methods: BP port charger, 16.8V D-Tap charger, USB-C
• Dimensions: 107.0 x 72.0 x 70.7 mm
• Weight: 804.7 g

Package Includes

• 1x VB155 Mini V-Mount Battery 3581B
• 1x SmallRig custom sticker set
• 1x User manual
• 1x Operating guide