What size V-mount battery do I need?

Ninety nine watt hours for a camera rig that travels, because it is the largest capacity airlines allow in carry-on without approval and it runs a camera, monitor and transmitter for a full day. Fifty watt hours suits a light rig where weight matters more than runtime. Larger cells above 100 Wh make sense only for lighting and only if you never fly with them.

How long will a 99 Wh battery run my rig?

A mirrorless camera alone draws 6 to 9 W, giving roughly 9 to 14 hours. Add a bright monitor and you are at 12 to 16 W, so 5 to 7 hours. Add wireless video and a recorder and you reach 32 to 40 W, which is 2 to 3 hours. A 200 W COB light drains the same cell in under half an hour, which is why continuous lighting is a mains job.

What do I need besides the battery itself?

A plate that mounts to your rig and presents the V-mount interface, and a dummy battery cable that converts D-Tap to your camera battery shape. A plate is around $64, a dummy battery around $32, and a dual charger around $110. Budget roughly $260 for a working single-battery system rather than the $160 the cell alone costs.

How should I store V-mount batteries?

At 50 to 60 percent charge, somewhere cool. Lithium cells degrade fastest when stored full and warm, so a battery left at 100 percent for six months loses noticeably more capacity than one left half charged. Charge to full the night before a shoot rather than keeping everything topped up permanently, and run cells down before they go into storage.

Are expensive professional batteries worth it?

On a rental kit or a working crew, yes, because cell quality and protection circuitry reduce the chance of the failure that costs a shoot day. For an owner-operator whose batteries are handled carefully, two value-brand 99 Wh cells beat one professional cell, because the most common cause of running out of power is owning only one battery. Do check the maximum continuous D-Tap current on cheaper cells.

Best V-Mount Batteries for Camera Rigs in 2026

Short answer

The best V-mount battery for most rigs is the SmallRig VB99 at around $160, because 99 Wh is the largest capacity airlines allow in carry-on and it runs a camera, a monitor and a transmitter for a full working day. If your rig is light and you fly constantly, the VB50 at $130 is smaller and two of them still beat one dead cell.

V-mount is the answer to the two most common shoot-enders at once: a flat camera battery and a dead monitor. The SmallRig VB99 Mini V-Mount, 99Wh at around $160 is the pick because 99 Wh is the largest capacity you can carry onto an aircraft and it comfortably runs a full rig for a day. You also need a SmallRig Foldable V-Mount Battery Plate to mount it and a SmallRig NP-FZ100 D-Tap Dummy Battery to feed the camera, and those two together are under $100.

What V-mount actually solves

A rig with camera batteries, NP-F cells for the monitor and AA cells in a microphone has three power systems, three chargers and three separate ways for the day to end early. V-mount replaces all of them with one large cell that feeds everything through D-Tap and USB-C outputs, so there is one number to watch and one charger to remember.

It also gives you a runtime you can predict. A 99 Wh cell running a 12 W load lasts roughly eight hours in theory and six or seven in practice once conversion losses and cold weather are accounted for. That is a number you can plan a day around, which a camera battery percentage indicator is not.

And on a shoulder rig it does a third job for free: it sits at the back of the rig and counterbalances a front-heavy build, which is the difference between a rig your arms hold up and a rig that sits on your shoulder by itself.

The batteries

$130 to $330. Fifty watt hours for a light rig, 99 Wh as the airline-legal workhorse, and 212 Wh for lights and long days when you are driving.

Carry-on safe $129.99

SMALLRIG

SmallRig VB50 Mini V-Mount, 50Wh

50 Wh is under every common airline limit, which is the deciding factor for a rig that flies.

Capacity: 50 Wh
USB-C: PD 45 W

Two of these beat one big one for travel.

Check price

Best value $159.99

SMALLRIG

SmallRig VB99 Mini V-Mount, 99Wh

99 Wh sits right under the usual 100 Wh airline ceiling, and PD 100 W out means it charges a laptop between setups too.

Capacity: 99 Wh
USB-C: PD 100 W

The default V-mount for a documentary kit.

Check price

All day $329.25

SMALLRIG

SmallRig VB212 V-Mount, 212Wh

212 Wh runs a camera, monitor and transmitter through a full day, at the cost of being unflyable in a carry-on.

Capacity: 212 Wh

Studio and vehicle work only.

Check price

The 100 watt hour rule, which decides most purchases

Airlines restrict lithium batteries by watt hours, not by physical size. Under 100 Wh, a battery goes in carry-on with no approval needed and there is usually no limit on quantity for personal equipment. Between 100 Wh and 160 Wh you need airline approval and are typically limited to two. Above 160 Wh, it does not fly at all. Lithium batteries are banned from checked baggage in every case.

This is why so many batteries are rated at 98 or 99 Wh. It is not a coincidence and it is not a technical limit; it is manufacturers sitting deliberately just under the threshold. If you fly with your kit, buy 99 Wh cells and buy more of them rather than buying fewer larger ones.

If you never fly, the SmallRig VB212 V-Mount, 212Wh at 212 Wh is genuinely better value per watt hour and will run a COB light for a useful length of time, which a 99 Wh cell will not. That is the real dividing line: 99 Wh for camera rigs that travel, large cells for lighting that stays in a van.

Watt hours, amps and how long a cell actually lasts

Load	Typical draw	Runtime on 99 Wh	Runtime on 50 Wh
Mirrorless camera only	6 to 9 W	9 to 14 hours	4 to 7 hours
Camera plus a 1600 nit monitor	12 to 16 W	5 to 7 hours	2.5 to 3.5 hours
Camera, monitor and wireless video	20 to 26 W	3 to 4 hours	1.5 to 2 hours
Camera, monitor, transmitter and recorder	32 to 40 W	2 to 3 hours	Under 1.5 hours
A 200 W COB light at full output	200 W	Under 30 minutes	Not viable

The bottom row is the one worth internalising. People buy a V-mount expecting to run a light from it and discover it lasts twenty minutes. Continuous lighting is a mains job or a very large battery job, and a camera-sized cell is not the answer. Run your own numbers on the battery runtime calculator with your actual load.

The plate and the cable are not optional

A V-mount battery is a power source with a mechanical mount and nothing else. To use it you need a plate that mounts to your rig and presents the battery interface, and a cable that converts D-Tap to whatever your camera takes.

The SmallRig Foldable V-Mount Battery Plate at around $64 folds flat and mounts to a cage or a rod system. The ZGCINE V-Mount Plate with Three D-Taps and USB-C at $66 is an Arca plate with three D-Taps and USB-C, which is the better choice once you have three things to power. For the camera itself, a SmallRig NP-FZ100 D-Tap Dummy Battery dummy battery at $32 replaces the camera battery with a D-Tap cable, and the Kondor Blue D-Tap to NP-FZ100 Cable is the same idea in a more robust cable.

Budget for these when comparing V-mount to NP-F. The battery is $160 and the working system is closer to $260, which is still cheaper than replacing three battery types over a couple of years and is far cheaper than a shoot that ended early.

What turns a battery into a power system

$32 to $66. The plate that holds the cell and the dummy battery that feeds the camera. Neither is optional.

Mounting $63.98

SMALLRIG

SmallRig Foldable V-Mount Battery Plate

The plate that puts a V-mount on a cage or a rod, with D-Tap and USB out so the monitor and transmitter stop needing their own cells.

Outputs: D-Tap, USB

This is what makes one battery power the rig.

Check price

EACHSHOT

ZGCINE V-Mount Plate with Three D-Taps and USB-C

Three D-Taps and a USB-C output on an Arca plate, which is enough to power a camera, a monitor and a transmitter from one battery.

Outputs: 3x D-Tap, USB-C

Check price

Camera power $31.98

SMALLRIG

SmallRig NP-FZ100 D-Tap Dummy Battery

The cable that turns a V-mount into camera power for Sony bodies, which is the whole reason to carry a V-mount at all.

For: Sony NP-FZ100 bodies

Match this to your camera's battery shape.

Check price

Charging, and the mistake that shortens battery life

A SmallRig Dual-Channel V-Mount Charger at around $110 charges two cells at once, which matters more than it sounds: a single-bay charger means a two-cell kit takes a full evening to turn around, and that is how people end up starting a day at 70 percent.

Storage charge is the part almost everyone gets wrong. Lithium cells degrade fastest when stored at full charge, especially warm. A battery left at 100 percent on a shelf for six months loses noticeably more capacity than one left at 50 to 60 percent. If a cell is not going out this week, run it down before it goes in the cupboard.

Cold is the other one. Capacity drops sharply below about 5 degrees Celsius, and a cell that reads full in a warm car will not deliver its rated capacity in a cold exterior. Keep spares inside a jacket rather than in a case, and expect a real reduction rather than treating it as a fault.

Anton Bauer and the professional premium

The Anton Bauer Titon Micro 90 V-Mount at around $309 costs roughly twice a comparable capacity from a value brand, and what it buys is cell quality, protection circuitry and a mount that survives being dropped repeatedly. On a rental kit or a working crew where a battery failure costs a shoot day, that premium is straightforward insurance.

For an owner-operator whose batteries live in a padded case and get charged carefully, the value brands are genuinely fine, and the money is better spent on a second cell. Two 99 Wh value batteries beat one professional 90 Wh battery for almost every solo workflow, because the single largest cause of running out of power is having only one cell.

The specification worth checking whatever you buy is the maximum continuous current on the D-Tap. Some cheaper cells limit D-Tap output well below what a monitor plus a transmitter draws, which shows up as a device that resets under load rather than as an obvious fault.

How we chose

These picks come from published watt hour ratings, stated output specifications, airline regulations on lithium batteries, and verified owner reviews describing capacity retention and behaviour in cold weather. We did not have every one of these batteries in our hands and will not claim otherwise.

The criteria in order: capacity relative to the 100 Wh airline threshold, number and rating of outputs, mount quality, and stated protection circuitry. Price per watt hour mattered, but less than having two cells rather than one.

Next, from here

Battery runtime calculator
Your actual load against a specific capacity.
Camera rig power guide
D-Tap, dummy batteries and a single power plan.
V-mount versus NP-F
When the smaller format is still the right answer.
Runtime chart by load
Every common load against every common capacity.
Best shoulder rigs
Where the battery doubles as a counterweight.
Run and gun working build
The tier where single-battery power arrives.

Common questions

What size V-mount battery do I need?: Ninety nine watt hours for a camera rig that travels, because it is the largest capacity airlines allow in carry-on without approval and it runs a camera, monitor and transmitter for a full day. Fifty watt hours suits a light rig where weight matters more than runtime. Larger cells above 100 Wh make sense only for lighting and only if you never fly with them.
Can I take V-mount batteries on a plane?: Under 100 Wh, yes, in carry-on with no approval needed and usually no quantity limit for personal equipment. Between 100 and 160 Wh you need airline approval and are typically limited to two. Above 160 Wh they cannot fly. Lithium batteries are banned from checked baggage entirely in every case, which is why so many camera batteries are rated at 98 or 99 Wh.
How long will a 99 Wh battery run my rig?: A mirrorless camera alone draws 6 to 9 W, giving roughly 9 to 14 hours. Add a bright monitor and you are at 12 to 16 W, so 5 to 7 hours. Add wireless video and a recorder and you reach 32 to 40 W, which is 2 to 3 hours. A 200 W COB light drains the same cell in under half an hour, which is why continuous lighting is a mains job.
What do I need besides the battery itself?: A plate that mounts to your rig and presents the V-mount interface, and a dummy battery cable that converts D-Tap to your camera battery shape. A plate is around $64, a dummy battery around $32, and a dual charger around $110. Budget roughly $260 for a working single-battery system rather than the $160 the cell alone costs.
How should I store V-mount batteries?: At 50 to 60 percent charge, somewhere cool. Lithium cells degrade fastest when stored full and warm, so a battery left at 100 percent for six months loses noticeably more capacity than one left half charged. Charge to full the night before a shoot rather than keeping everything topped up permanently, and run cells down before they go into storage.
Are expensive professional batteries worth it?: On a rental kit or a working crew, yes, because cell quality and protection circuitry reduce the chance of the failure that costs a shoot day. For an owner-operator whose batteries are handled carefully, two value-brand 99 Wh cells beat one professional cell, because the most common cause of running out of power is owning only one battery. Do check the maximum continuous D-Tap current on cheaper cells.

Totalling your own rig weight against your gimbal payload? The Camera Rig Build Planner is the paid version of these pages: 8 printable worksheets you fill in with your own numbers, plus the full PDF, $29.