Best External Battery Plates for Canon Cinema EOS C700 Mark II
The Canon Cinema EOS C700 Mark II is a powerhouse of a camera, but its 4.5K RAW capabilities come with a massive appetite for power. If you’ve ever been mid-take on a high-stakes commercial set only to have your internal juice run dry, you know why a high-quality external battery plate isn’t just an accessory—it’s a necessity. In this guide, I’ll break down the best plates, including my top pick from Core SWX, to keep your rig running all day long.
Our Top Picks at a Glance
Best External Battery Plates for Canon Cinema EOS C700 Mark II: Detailed Reviews
Core SWX Shark-fin V-Mount Plate View on Amazon View on B&H
The Core SWX Shark-fin is the absolute gold standard for the C700 Mark II. When you’re dealing with a camera this heavy, the last thing you want is to shut down the entire rig just to swap a battery. This plate allows you to mount two V-mount batteries simultaneously. It draws from one until it’s empty, then seamlessly switches to the second, allowing you to “hot-swap” the first one back in. I’ve used this on 14-hour shoot days where the camera never technically turned off once. It features two P-Taps for accessories, which is essential for powering your wireless follow focus and monitor. The build quality is industrial-grade, matching the C700’s rugged chassis. The only downside is the added bulk, which might make your rig back-heavy, though many find that helps balance out large cinema glass.
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IDX P-V2 V-Mount Plate View on Amazon View on B&H
If you don’t need the dual-battery setup of the Shark-fin, the IDX P-V2 is a remarkably reliable workhorse. IDX practically invented the V-mount standard, and this plate reflects that heritage. What I love about this plate is the “Digi-View” feature—it allows battery percentage and remaining run-time data to pass through to the C700’s viewfinder, provided you’re using compatible IDX batteries. This is a lifesaver when you’re operating solo and can’t keep checking the side of the battery. It includes one D-Tap output for accessories. While it lacks the fancy bells and whistles of high-end power distributors, its mechanical connection is incredibly tight; there’s no “battery wiggle” here, which can cause power arcs or accidental shut-offs. It’s a simple, effective, and affordable way to mount professional power to your Canon cinema rig.
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SmallRig V-Mount Battery Plate 2988 View on Amazon View on B&H
SmallRig has come a long way, and their 2988 V-mount plate is a testament to their smart design. For the C700 Mark II, this is the best budget option because it includes a 15mm LWS rod clamp. Instead of mounting directly to the back of the camera body, you can slide this along your baseplate rods to help perfectly balance the camera on your shoulder. It features multiple 1/4″-20 and 3/8″-16 threads, allowing you to mount other accessories directly to the plate itself. You get two 12V DC outputs, an 8V DC output, and a D-Tap. You’ll need a D-Tap to 4-pin XLR cable to actually power the C700, but the flexibility here is unmatched for the price. The plastic release lever feels a bit less premium than the metal ones on Core SWX, but it holds the battery securely during vigorous movement.
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Wooden Camera D-Box (C700 V-Mount) View on Amazon View on B&H
The Wooden Camera D-Box is more than just a battery plate; it’s a complete power management system tailored for the Cinema EOS line. If you are running a complex rig with a Teradek, a Preston follow focus, and a high-bright monitor, the D-Box is your best friend. It provides two D-Taps, two 2-pin Lemos (ARRI standard), and even a 3-pin Fischer for remote start/stop. The most impressive feature is the 4-pin XLR DC input, allowing you to plug into a block battery or wall power without removing the V-mount battery—providing an uninterrupted power bridge. It bolts directly to the back of the C700, feeling like a native part of the camera. It is expensive, yes, but for high-end cinema work where cable management and power reliability are paramount, it is worth every penny. You won’t find a more robust solution.
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Shape V-Mount Battery Plate with Rod Mount View on Amazon View on B&H
Shape is famous for their push-button technology, and while this plate is a more traditional design, it carries their hallmark “overbuilt” quality. This plate is entirely CNC machined aluminum, which is exactly what a heavy camera like the C700 Mark II needs for longevity. It mounts to 15mm rods and features a single D-Tap output. I find this plate particularly useful for “run-and-gun” documentary work because the tension on the rod clamps is excellent—it won’t slip even when you’re wrestling the camera into a tight corner. The battery release mechanism is butter-smooth, and it’s compatible with virtually every V-mount battery on the market. While it doesn’t have the multiple outputs of the SmallRig or the Wooden Camera, its sheer durability makes it a fantastic long-term investment for professionals who are hard on their gear.
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Buying Guide: How to Choose a Battery Plate for the C700 Mark II
Comparison Table
| Product | Best For | Rating | Price |
|---|---|---|---|
| Core SWX Shark-fin | Continuous Use | ★★★★★ | Check |
| IDX P-V2 | Reliability | ★★★★☆ | Check |
| SmallRig 2988 | Shoulder Rigs | ★★★★☆ | Check |
| Wooden Camera D-Box | AC Support | ★★★★★ | Check |
| Shape Rod Mount | Durability | ★★★★☆ | Check |
Frequently Asked Questions
Should I choose V-Mount or Gold Mount for my C700 Mark II?
This depends largely on your existing battery ecosystem and your region. In the US, Gold Mount (Anton Bauer) is often the professional standard due to its locking mechanical connection. However, V-Mount is more universal globally. For the C700, both are excellent, but V-Mount plates are generally more available and offer more third-party options. Just ensure the plate you choose can handle the 14.4V to 16.8V output required by the C700.
Will an external battery plate allow me to hot-swap batteries?
Only if the plate is specifically designed for it, like the Core SWX Shark-fin. Standard plates only hold one battery, so the camera must be powered down during a swap unless you are also plugged into the DC-IN 4-pin XLR port with a block battery or AC adapter. If you do a lot of live shooting or long takes, investing in a hot-swap capable plate is a game changer.
Can I use these plates on 15mm rods?
Yes, but not all of them come with rod clamps included. The SmallRig and Shape models featured here are specifically designed for 15mm rods. The Core SWX and Wooden Camera models typically mount directly to the back of the C700 body. If you want to use those on rods, you will need to purchase an additional rod-to-cheese-plate adapter. Rod mounting is better for balancing heavy lenses.
Is it safe to power accessories from the battery plate?
Absolutely. In fact, it’s often safer for the camera. By using the D-Tap or Lemo ports on the battery plate, you are pulling current directly from the battery rather than through the camera’s internal motherboard. This reduces the risk of frying the camera’s electronics if an accessory shorts out. Just be mindful of the total amp draw to ensure you don’t exceed the battery’s maximum discharge rate.
Do these plates show the battery percentage in the C700’s EVF?
This functionality requires a “data pass-through” feature. High-end plates like the IDX P-V2 and Core SWX Shark-fin support data communication between the battery and the camera. However, this also requires a compatible battery that can “talk” to the camera. If you use a cheap “dumb” battery, the camera will likely only show a voltage reading (e.g., 16.2V) rather than a percentage, regardless of the plate used.
Final Verdict
For professional sets where time is money, the Core SWX Shark-fin is the clear winner for its hot-swapping capability. If you are building a custom shoulder rig and need to balance weight, the SmallRig 2988 offers the best mounting flexibility. Professional ACs who need clean power distribution for multiple accessories should look no further than the Wooden Camera D-Box. No matter your choice, moving to professional V-mount power is the best upgrade you can make for your C700.