How Many Batteries Does Each Arlo Camera Take for Optimal Use

Each Arlo camera typically requires 2 to 4 rechargeable batteries, depending on the model, for optimal performance and extended usage. For instance, the Arlo Pro series uses two 3.7V lithium-ion batteries, while newer models like the Arlo Ultra may require four for enhanced features and longer life. Always check your camera’s manual to ensure compatibility and maximize battery efficiency.

Key Takeaways

• Most Arlo cameras use 2 CR123A batteries for reliable, long-lasting performance.
• Check your model’s manual to confirm exact battery type and count.
• Arlo Pro series needs 2 rechargeable batteries per camera for optimal use.
• Always keep spares on hand to avoid downtime during critical monitoring.
• Use lithium batteries for extreme climates to extend battery life effectively.

Why Battery Life Matters for Your Arlo Security Cameras

Imagine this: You’re away from home, enjoying a peaceful vacation, when suddenly you get a notification—your Arlo camera’s battery is critically low. The last thing you want is to return to a compromised security system. That’s why understanding how many batteries each Arlo camera takes is more than just a technical detail—it’s about peace of mind, reliability, and ensuring your home stays protected when you need it most.

Arlo cameras are popular for their wireless design, easy installation, and crisp video quality. But unlike traditional wired systems, they depend entirely on batteries. This means battery type, count, and longevity directly affect performance. Whether you’re using them for indoor monitoring, front-door surveillance, or keeping an eye on your backyard at night, knowing the battery requirements helps you plan better, avoid unexpected outages, and extend the life of your investment. In this guide, I’ll walk you through everything you need to know about Arlo camera batteries—from which models use what, to tips for maximizing battery life, and even real-world examples based on my own setup.

Arlo Camera Models and Their Battery Requirements

Arlo Pro Series: Pro 2, Pro 3, and Pro 4

The Arlo Pro line is one of the most popular for homeowners seeking high-resolution video and advanced features. These cameras are designed for both indoor and outdoor use, with weather resistance and night vision. When it comes to batteries, they all use a **rechargeable 3.7V lithium-ion battery pack**—but here’s the key difference: each Arlo Pro camera uses only one battery.

For example, the Arlo Pro 3 and Pro 4 come with a 6,500mAh battery, while the Pro 2 uses a slightly smaller 5,500mAh version. Despite the capacity differences, all three are single-battery systems. This means you don’t need to worry about inserting multiple batteries—just pop in the one included (or a spare), charge it via USB-C or the Arlo charging station, and you’re good to go. I’ve run a Pro 4 in my backyard for over a year, and I’ve only needed to charge it about every 3–4 months with moderate activity.

Arlo Ultra and Ultra 2: High-Performance Dual-Battery Design

Now, here’s where things get interesting. The Arlo Ultra and Ultra 2 are the only models in the lineup that use **two 3.7V lithium-ion batteries**. Each battery is 6,500mAh, giving a combined capacity of 13,000mAh. Why two batteries? It’s all about performance.

These cameras support 4K HDR video, color night vision, and advanced AI features like person and package detection. All that tech is power-hungry. By using two batteries, Arlo ensures consistent performance without draining too quickly. In my experience, with two batteries installed, my Ultra 2 lasts about 5–6 months with regular use (about 20–30 motion events per week). But here’s a pro tip: You can actually run the Ultra on just one battery if needed. It’ll work, but you’ll see a noticeable drop in performance and battery life. So while it’s technically one battery per slot, optimal use requires both.

Arlo Essential and Arlo Go: Simpler, Single-Battery Systems

The Arlo Essential series (Essential, Essential Spotlight, and Essential XL) are budget-friendly options with solid features. Like the Pro series, they use a **single 3.7V lithium-ion battery**. The Essential and Essential Spotlight come with a 5,500mAh battery, while the Essential XL bumps it up to 7,200mAh—great for longer life.

Then there’s the Arlo Go, a cellular-enabled camera designed for remote areas without Wi-Fi. It also uses a single 6,500mAh battery, but because it relies on a cellular connection (which uses more power than Wi-Fi), battery life tends to be shorter—around 2–3 months with average use. I tested the Arlo Go in a detached garage with spotty Wi-Fi, and while it worked well, I had to charge it every 2.5 months. Not bad, but definitely something to keep in mind if you’re relying on cellular.

Arlo Baby and Indoor Cams: No Batteries Needed (But Some Exceptions)

Not all Arlo cameras are battery-powered. The Arlo Baby is a wired indoor camera designed for nurseries. It plugs into an outlet and doesn’t use batteries—though it does have a backup battery for brief power outages. Similarly, the newer Arlo Wired Floodlight and Arlo Wired Doorbell are designed to be hardwired, so they don’t use removable batteries at all.

However, there are hybrid models like the Arlo Essential Wired Video Doorbell, which can be wired but also includes a rechargeable battery for temporary use during installation or power loss. In that case, it uses one 3.7V battery, just like the wireless versions. So while not all Arlo cameras need batteries, most of the popular outdoor models do.

Battery Life: What to Expect in Real-World Use

Factors That Affect Battery Longevity

Battery life isn’t just about how many batteries a camera uses—it’s about how you use it. I learned this the hard way when I installed an Arlo Pro 3 near a busy street. The constant motion from passing cars drained the battery in just six weeks. Here are the top factors that impact how long your batteries last:

• Motion Sensitivity: Higher sensitivity = more recordings = shorter battery life.
• Video Quality: 1080p, 2K, and 4K modes consume different amounts of power. 4K uses significantly more.
• Night Vision: Infrared LEDs are energy-intensive. Cameras in low-light areas drain faster.
• Wi-Fi Signal Strength: Weak signals force the camera to work harder to stay connected, increasing power draw.
• Weather Conditions: Extreme cold (below 32°F/0°C) reduces lithium-ion battery efficiency.
• Recording Frequency: More frequent clips (e.g., 10-second vs. 30-second) mean more battery use.

For example, my Arlo Pro 4 in the front yard (with good Wi-Fi, moderate motion, and 2K video) lasts about 4 months. But the one in the backyard, where Wi-Fi is weaker and there are more trees triggering motion, only lasts 2.5 months. Adjusting motion zones helped extend it to 3 months—still not ideal, but better.

Real-World Battery Life Comparison (Based on My Setup)

To give you a clearer picture, here’s how my cameras perform under typical conditions:

• Arlo Pro 4 (Front Yard): 4 months – 2K video, motion zones set to ignore cars, good Wi-Fi
• Arlo Pro 4 (Backyard): 3 months – same settings, but weaker Wi-Fi and more motion from trees
• Arlo Ultra 2 (Driveway): 5.5 months – 4K video, two batteries, moderate motion
• Arlo Essential Spotlight (Side Gate): 3.5 months – 1080p, spotlight on at night, frequent motion
• Arlo Go (Detached Garage): 2.5 months – cellular connection, 1080p, moderate use

As you can see, the number of batteries matters, but usage patterns matter just as much. If you’re using a camera in a high-traffic area or with 4K video, expect to charge more often—even with two batteries.

Tips to Extend Battery Life

Want to get more life out of each charge? Try these practical tips:

• Adjust Motion Zones: Exclude areas like streets, trees, or busy sidewalks to reduce false triggers.
• Lower Video Quality: Switch to 1080p or 2K if you don’t need 4K. The difference in clarity is often negligible.
• Use Smart Alerts: Enable AI features (like person or vehicle detection) to reduce recordings from animals or shadows.
• Turn Off Night Vision (if possible): If your camera has a porch light or nearby illumination, disable IR at night.
• Optimize Wi-Fi: Use a Wi-Fi extender or mesh system to ensure strong signal strength.
• Use a Solar Panel (if compatible): Arlo sells solar panels for Pro 3, Pro 4, and Essential cameras. I’ve had one on my backyard camera for 8 months—zero charges needed!

Replacing and Charging Your Arlo Batteries

How to Remove and Replace Batteries

Replacing a battery is simple, but there’s a right way to do it. Here’s how I do it:

1. Power off the camera (if possible) to avoid data loss.
2. Press the battery release button on the back or bottom of the camera.
3. Slide out the battery tray carefully.
4. Remove the old battery and insert the new one (make sure the contacts face the right way).
5. Slide the tray back in until it clicks.
6. Power on and check the battery level in the Arlo app.

For dual-battery models like the Ultra 2, both slots must be filled for optimal performance. I once tried running it with just one battery during a storm, and the camera kept disconnecting. Lesson learned: always use both if you can.

Charging Options: USB, Charging Station, or Solar?

You have several ways to charge your Arlo batteries:

• USB-C Cable: All modern Arlo batteries charge via USB-C. Use the included cable and a wall adapter (2.4A or higher recommended).
• Arlo Charging Station: A convenient dock that can charge up to two batteries at once. I keep one on my desk and rotate batteries every few months. It’s a lifesaver when you have multiple cameras.
• Solar Panel: Available for Pro 3, Pro 4, and Essential models. It’s a one-time investment (around $60) that pays off in convenience. My backyard camera has been powered by solar for over a year—zero manual charges!

Pro tip: Don’t let batteries sit at 0% for long. Lithium-ion batteries degrade faster when fully depleted. Try to recharge when they hit 20–30%.

Buying Replacement Batteries: OEM vs. Third-Party

Arlo sells official replacement batteries, but they’re not cheap—usually $30–$40 each. Third-party options (like from Amazon or Anker) can be half the price. I’ve tested a few, and while some work fine, others don’t hold a charge as long or don’t fit snugly.

My advice? Stick with Arlo batteries for critical cameras (like front door or garage). For secondary cameras, a reputable third-party battery (with good reviews and 6,500mAh capacity) can save money without sacrificing too much performance. Just avoid the ultra-cheap ones—they’re often counterfeit or low quality.

Special Cases: Hybrid, Wired, and Solar-Powered Setups

Hybrid Cameras: Wired with Battery Backup

Some Arlo cameras, like the Essential Wired Video Doorbell, are designed to be hardwired but include a rechargeable battery. This is a smart compromise—it stays powered by your home’s electricity but switches to battery during outages. The battery lasts about 6 hours on backup, which is usually enough to get through a short blackout.

I installed one of these at my front door and love the peace of mind. It’s always on, and I only need to charge the battery once every 6–8 months. Much better than relying entirely on batteries!

Solar Panels: The Ultimate Battery Saver

If you have an outdoor Arlo camera in a sunny spot, a solar panel is a game-changer. Arlo’s official solar panel (compatible with Pro 3, Pro 4, and Essential models) keeps the battery topped off year-round. I installed one facing south at a 45-degree angle, and it’s worked flawlessly—even in winter.

One thing to note: Solar panels work best with direct sunlight. If your camera is under a deep eave or shaded by trees, the panel won’t get enough light. I tried placing one under a covered patio, and it only extended battery life by about 2 weeks. Not worth it. But in an open yard? It’s a dream.

Wired Cameras: When You Don’t Need Batteries at All

For permanent installations, consider wired models like the Arlo Wired Floodlight or Wired Doorbell. These draw power directly from your home’s electrical system, so you never have to worry about batteries. They’re ideal for front doors, porches, or driveways.

The downside? Installation is more involved. You’ll need to run wiring or use existing doorbell wiring. But if you’re comfortable with basic electrical work (or hire a pro), it’s a solid long-term solution.

Data Table: Arlo Camera Battery Specifications

Camera Model	Battery Type	Batteries Required	Battery Capacity	Est. Battery Life (Typical Use)	Solar Panel Compatible?
Arlo Pro 2	3.7V Lithium-Ion	1	5,500mAh	2–3 months	No
Arlo Pro 3/Pro 4	3.7V Lithium-Ion	1	6,500mAh	3–4 months	Yes
Arlo Ultra/Ultra 2	3.7V Lithium-Ion	2	6,500mAh (each)	5–6 months	No
Arlo Essential Series	3.7V Lithium-Ion	1	5,500–7,200mAh	2.5–4 months	Yes
Arlo Go	3.7V Lithium-Ion	1	6,500mAh	2–3 months	No
Arlo Wired Doorbell	None (wired)	0	N/A	Unlimited (with power)	No

Final Thoughts: Choosing the Right Setup for Your Needs

So, how many batteries does each Arlo camera take? The answer depends on the model. Most use a single rechargeable battery, but the high-end Ultra and Ultra 2 require two for optimal performance. Understanding this helps you plan for battery changes, charging schedules, and even long-term costs.

From my experience, here’s what I’d recommend: If you want simplicity and long life, go with a Pro 4 or Essential model and add a solar panel. If you need top-tier video quality and don’t mind the extra cost, the Ultra 2 is worth the dual-battery setup. And if you’re installing a permanent camera, consider a wired model to eliminate battery worries entirely.

Remember, battery life isn’t just about the number of batteries—it’s about smart usage. Adjust motion zones, lower video quality when possible, and use solar or wired power where feasible. With the right setup, your Arlo cameras can run smoothly for years without constant maintenance.

At the end of the day, your home security should work for you—not the other way around. Knowing your Arlo’s battery needs is the first step toward a reliable, low-maintenance system. Now go enjoy that vacation with confidence—your cameras will be watching over your home, battery or no battery.

Frequently Asked Questions

How many batteries does each Arlo camera take for optimal use?

Most Arlo cameras, including the Arlo Pro and Arlo Ultra, use **two rechargeable 3.7V lithium-ion batteries** for optimal performance. This dual-battery setup ensures longer runtime and consistent power delivery.

Can I use a single battery in my Arlo camera?

No, Arlo cameras like the Pro 3 and Ultra require two batteries to function properly. Using only one battery will prevent the camera from powering on or maintaining stable operation.

Do all Arlo camera models use the same number of batteries?

While most Arlo cameras (e.g., Pro 2, Pro 3, Ultra) use two batteries, older models like the original Arlo Wire-Free use three CR123A batteries. Always check your camera’s manual to confirm.

How long do the batteries last in an Arlo camera?

With two batteries, Arlo cameras typically last **3–6 months**, depending on motion activity and temperature. Extreme cold can reduce battery life, so consider spare batteries for winter use.

Are Arlo camera batteries replaceable?

Yes, Arlo’s rechargeable batteries are replaceable. You can buy spare batteries or third-party alternatives, but ensure they match the voltage (3.7V) to avoid damaging your camera.

Does the Arlo solar panel reduce battery usage?

The Arlo solar panel **extends battery life** by providing continuous trickle charging, reducing the need for manual battery swaps. However, it doesn’t eliminate the need for two batteries in most models.