Running out of power during a shoot is every videographer’s nightmare. But what if there’s a way to keep your gear running for hours without interruptions? That’s where the V Mount dummy battery comes in. But what exactly is it? Is it safe for your camera? And how do you choose the right one for your setup? Let’s dive in and find out.
What is a V Mount dummy battery?
A V-mount dummy battery is a specialized power adapter that allows cameras or other video equipment to draw power from a V-mount battery. Unlike standard internal batteries, it acts as a bridge that converts the output from a V-mount battery into a compatible voltage and connection type for devices that normally run on smaller built-in power sources, such as DSLRs, mirrorless cameras, or on-camera monitors.
A dummy V lock battery typically consists of a power cable with two essential components:
V-mount battery connector: Located at one end of the cable, this is usually a D-Tap plug or DC barrel connector that connects to the output port of a V-mount battery. It draws high-capacity power from the battery to supply external devices.
Dummy battery: Located at the other end, this component is shaped exactly like the original camera battery type, such as LP-E6, NP-FZ100, or EN-EL15. It fits into the camera’s battery slot and delivers regulated power from the V-mount battery, enabling continuous operation without frequent battery changes.
Is a dummy battery safe for a camera?
Yes, a V Mount dummy battery can safely power your camera when used correctly. These adapters are designed to meet the specific voltage and current requirements of the camera, ensuring they deliver the correct power without causing damage. However, safety depends on the quality of the dummy battery and its compatibility with your camera model. It is essential to use high-quality adapters from trusted brands to avoid potential issues like overheating or an inconsistent power supply.
How to choose the best V Mount dummy battery?
When selecting a V Mount dummy battery, consider these four key factors to ensure reliable power delivery and equipment safety.
Dummy battery type: Ensure it matches the original one used by your device
The dummy battery must match the original battery type used by your device. Each camera or monitor supports a specific battery shape and voltage, and using an incompatible one may result in power failure or connection issues. The table below shows the common types used by different cameras.
Table: Common types of V mount dummy batteries for cameras
| Camera brand | Dummy battery type | Typical camera models |
| Canon | LP-E6 | EOS 5D, 6D, 7D, R, R5, R6 |
| Sony | NP-FZ100 | Alpha a7 III, a7R III, a7 IV, FX3 |
| Sony | NP-FW50 | a6000 series, a7 II |
| Nikon | EN-EL15 | D750, Z6, Z7, D800 series |
| Panasonic | DMW-BLF19 | GH5, GH5S, G9 |
| Fujifilm | NP-W126 | X-T3, X-T30, X-Pro2 |
Connector: Match the cable to your V-mount battery output port
The adapter must support the output port on your V-mount battery. Most V-mount batteries offer DC outputs like 2-pin/3-pin ports or D-tap connectors. Make sure the connector on your cable matches the output port on your V-mount power solution.
Voltage: Choose the V Mount dummy battery with a regulated adapter to protect your device
A high-quality dummy battery adapter for V-mount batteries must accurately convert and regulate voltage. V-mount batteries typically output 14.4V to 14.8V, while most cameras and monitors operate on 7.2V to 8.4V. Choose an adapter with precise voltage control (e.g., ±0.1V tolerance) and built-in protections such as overvoltage and undervoltage safeguards. Unregulated cables may deliver unsafe voltage levels that can damage your device.
Durability: Check the build quality to ensure reliability
Durability matters, especially for professional use. Choose one with thick insulation, firm connectors, and a secure dummy battery fit. A tight connection prevents power loss during shooting. Braided cables and rubber-sealed housings offer better on-set reliability. For rugged environments, consider weather-resistant models with IP-rated sealing against dust and moisture.
3 top recommendations at Moman
Looking for a V-mount dummy battery that fits your gear? Below are three Moman picks designed for different devices.
Moman DE6: D-tap to LP-E6 V mount dummy battery for Canon cameras
Moman DE6 is designed for devices using LP-E6 dummy batteries, such as portable monitors and Canon cameras. It provides a regulated 8V output at 2A, safely powering models like Canon EOS 5D, 6D, 7D, 80D, 90D, and EOS R. With a D-Tap input, it’s fully compatible with standard V-mount batteries for extended runtime. The coiled cable stretches from 16 to 50 inches, offering both flexibility and a tidy setup. It is ideal for mobile creators and field shooting.
Moman DFZ100: D-tap to NP-FZ100 dummy battery power cable for Sony cameras
The Moman DFZ100 is a V-mount dummy battery adapter for Sony mirrorless cameras using NP-FZ100 batteries, including A7 III, A7R III, A7 IV, A9, and A6600. It delivers a stable 7.6V output at up to 3A, with input support from 10V to 20V. The D-Tap input connects easily to any V-mount battery, making it ideal for long outdoor shoots. Its coiled cable design expands as needed, keeping your rig both clean and flexible on set.
Moman VBP: V mount battery plate with DC to LP-E6 dummy battery adapter
The Moman VBP V-mount battery plate includes a DC to LP-E6 dummy battery adapter. It offers multiple outputs—USB, D-Tap, and DC ports ranging from 5V to 15V—to power several devices at once, including DSLRs, monitors, smartphones, and LED lights. With easy rig mounting and 15mm rod compatibility, it’s ideal for pro setups like BMPCC 4K/6K, Canon 5D series, and Sony Alpha models.
How to use it to power your camera?
Here are four steps to use a V Mount dummy battery for cameras.
- Insert the dummy battery: Place it into your camera’s battery compartment, ensuring a snug and secure fit. Route the cable through the battery door’s pass-through slot if available.
- Connect to the V-mount battery: Plug the other end of the cable—typically a D-Tap or DC connector—into the output port of your V-mount battery.
- Secure the setup: For mobile rigs or handheld use, mount the V-mount battery on a battery plate, which can be attached to your camera cage, tripod, or rig. This not only holds the battery firmly in place but also helps manage cable routing and reduces strain on the connectors.
- Power up: Turn on the V-mount battery. The dummy battery will now supply regulated power to your device, allowing for uninterrupted, long-duration operation.
