V-Mount batteries are widely favored in content creation for their high capacity, stable voltage output, and hot-swappable design. Using V mount battery for lights transforms portable lighting setups for filmmakers, photographers, and content creators. These reliable power sources provide the flexibility to shoot in any location without the need for wall outlets. In this article, we’ll cover the essentials, including:
- What is a V-Lock battery?
- What are the advantages of using V-Mount batteries to power lights?
- How do you choose one that fits your lighting setup?
- How do you connect and use it with your gear?
What is a V Mount Battery?
The term "V-mount" comes from the V-shaped connector on the battery, which allows it to connect to various devices. One of the benefits of this battery type is its ease of use and quick removal. All that's required to begin using it is a battery charger. However, V-mount batteries do not provide the same level of security as gold-mount batteries, which is a downside. Still, V-mount batteries remain popular for powering various devices, such as lights on film sets.
V-mount batteries typically deliver a higher voltage of 14.8 volts, compared to the 7–8 volts that most cameras require. This higher voltage is actually beneficial, as it can be regulated and converted to power a variety of devices. In essence, the increased voltage allows V-mount batteries to supply enough power for multiple devices simultaneously, making them a highly versatile option for filmmakers and videographers.
Why choose V-mount batteries for lighting equipment?
Professional reliability: V-mount batteries are designed to meet professional broadcast standards, ensuring reliable and steady power output over long periods. Unlike consumer-grade batteries, they are built to handle the intense power demands of professional lighting equipment without experiencing voltage drops or unexpected shutdowns.
High capacity options: V-mount batteries typically offer capacities ranging from 90Wh to 290Wh, with some high-capacity variants surpassing 300Wh. This large energy storage capability enables LED panels and other lighting devices to run for extended hours, making them perfect for long filming sessions or off-location shoots.
Flexible connectivity: Contemporary V-mount batteries come with various output options such as D-Tap ports, USB ports, and DC outputs. This flexibility allows you to power multiple devices at once, including your primary lighting setup, cameras, monitors, and additional accessories.
Hot-Swappable functionality: The V-mount system supports hot-swapping, which means you can replace batteries without turning off your equipment. This is a vital feature during continuous shooting, ensuring uninterrupted power for consistent lighting throughout the session.
What features to consider for the best V mount battery for LED lights?
You need to consider the battery capacity, voltage, output ports, and battery protection.
Battery Capacity (Wh)
Watt-hours (Wh) measures the amount of energy a battery can store. When using a battery to power lights, it’s important to take into account both how much power your lighting equipment uses and how long you need it to run.
So, how to calculate the runtime for your lighting setup? You can use this formula:
Runtime (hours) = Battery Capacity (Wh) ÷ Power Draw of Light (W) × 0.85
The 0.85 factor adjusts for energy loss and helps prevent fully draining the battery. For instance, a 150Wh battery running a 40W LED light would offer around 3.2 hours of operation.
Output voltage and current
Most professional lighting equipment operates on 12V or 14.4V systems. Ensure your V mount battery provides a stable voltage output matching your equipment's requirements. Current output (measured in amps) determines how much power the battery can deliver simultaneously.
V-mount battery output ports
Look for batteries with multiple output options:
- D-Tap ports: Industry standard for powering lights and accessories
- USB-A and USB-C: For charging smaller devices
- DC barrel outputs: For equipment requiring specific connector types
Build quality and protection
Professional V mount batteries include built-in protection circuits for:
- Overcharge protection
- Over-discharge protection
- Short circuit protection
- Temperature monitoring
- Cell balancing
How to use it to power your video light?
Here’s a step-by-step guide to powering video lights with a V-mount battery:
⭐ Choose a V-Mount battery with sufficient capacity and outputs: Opt for a high-capacity model (e.g., 98–200 Wh) featuring the required ports: V-lock, D-Tap, USB-A/C, etc. These batteries are compact, robust, and designed for LED/video gear.
⭐ Get the proper cable or converter: For DC (barrel) power, use a good-quality D-Tap to barrel plug cable. For USB-C needs, use a PD-rated USB-C cable and ensure the battery negotiates the correct voltage/amperage.
⭐ Mount the battery securely: Attach it to your light stand or rig via a plate or clamp to minimize strain and safety risks. Keep cables neat to avoid tripping hazards.
⭐ Turn everything on and test: Power on the battery, then the light. Watch for any “low voltage” or PD handshake errors. If it doesn’t power up, double-check cable type or compatibility.
⭐ Monitor battery load and runtime: High-drain lights can deplete batteries quickly—e.g., a 140 Wh unit may last ~1 hr at 140 W. Use your battery’s fuel gauge (LED/USB-C display) to monitor charge.
💡Pro tips:
- Prefer D-Tap cables unless your light explicitly requires USB-C PD.
- Check voltage/amperage specs: your battery must meet your light’s requirements.
- Mount the battery securely and manage cables to prevent damage or injury.
