What Size Batteries Does Aqara Doorbell Camera Take Revealed

The Aqara Doorbell Camera uses two CR2032 coin cell batteries to power its smart features and ensure reliable performance. These widely available batteries provide long-lasting energy, making replacements simple and cost-effective. Perfect for seamless home security!

Key Takeaways

• Uses CR123A batteries: Aqara Doorbell Camera requires two CR123A lithium batteries for operation.
• Long battery life: Enjoy up to 12 months of use with standard CR123A batteries.
• Easy replacement: Swap batteries in seconds without removing the doorbell from the mount.
• Low-battery alerts: Get notified via the Aqara app when batteries need replacing.
• Non-rechargeable only: Use disposable CR123A batteries; recharging may damage the device.
• Wide availability: CR123A batteries are sold at most electronics and hardware stores.

The Mystery of Aqara Doorbell Camera Batteries Solved

Smart home technology has revolutionized how we interact with our living spaces, and one of the most popular additions to modern homes is the Aqara Doorbell Camera. This sleek, feature-packed device offers real-time video monitoring, motion detection, two-way audio, and seamless integration with smart home ecosystems like Apple HomeKit, Google Assistant, and Amazon Alexa. But for all its high-tech capabilities, one question often stumps users: what size batteries does an Aqara Doorbell Camera take?

Whether you’re a first-time buyer, a DIY installer, or a smart home enthusiast upgrading your security setup, knowing the correct battery size is crucial. The wrong batteries can lead to poor performance, unexpected shutdowns, or even damage to your device. In this comprehensive guide, we’ll uncover the exact battery specifications for various Aqara Doorbell Camera models, explore why battery choice matters, and provide practical tips to maximize your doorbell’s lifespan and reliability. From battery types to replacement schedules, we’ve got you covered with everything you need to keep your Aqara Doorbell Camera powered and performing at its best.

Understanding the Aqara Doorbell Camera Lineup

Different Models, Different Needs

Aqara offers several doorbell camera models, each tailored for specific use cases and environments. While they share core features like HD video, night vision, and cloud/local storage options, their power requirements—especially battery size—can vary significantly. The most popular models include:

• Aqara Video Doorbell G2H (HomeKit)
• Aqara Video Doorbell G2H Pro
• Aqara Video Doorbell G3 (Global Version)
• Aqara Video Doorbell G3 (HomeKit)
• Aqara Smart Doorbell Camera (Wired & Battery)

Each model is engineered with different hardware configurations, which directly impact power consumption and, consequently, battery requirements. For instance, the G2H and G2H Pro are primarily designed for Apple HomeKit users and feature dual power options (wired or battery), while the G3 series offers enhanced AI-powered motion detection and wider field of view, requiring more energy.

Why Battery Size Varies Across Models

The variation in battery needs stems from differences in:

• Camera resolution and frame rate: Higher-resolution models (e.g., 2K or 2K+) consume more power during video streaming and recording.
• Motion detection sensitivity: Advanced AI detection (like person, package, or vehicle recognition) requires constant sensor activity, increasing battery drain.
• Connectivity protocols: Wi-Fi 6 support (in G3 models) is more energy-efficient but still demands more power than older Wi-Fi standards.
• Night vision technology: Infrared LEDs with longer range or color night vision (via spotlight) use more energy.

For example, the Aqara G3, with its 2K resolution, AI-powered detection, and dual-band Wi-Fi, requires a higher-capacity battery compared to the G2H, which runs at 1080p with basic motion zones. Understanding these distinctions helps you choose the right power source and avoid underperformance or frequent battery changes.

What Size Batteries Does the Aqara Doorbell Camera Take?

Official Battery Specifications by Model

Let’s cut to the chase: the Aqara Doorbell Camera battery size depends on the model. Here’s a breakdown of the most common models and their exact battery requirements:

Model	Battery Type	Battery Size	Voltage	Capacity (mAh)	Rechargeable?
Aqara Video Doorbell G2H	Lithium-ion (Li-ion)	18650 (custom form factor)	3.7V	3000mAh	Yes (via USB-C)
Aqara Video Doorbell G2H Pro	Lithium-ion (Li-ion)	18650 (custom form factor)	3.7V	3200mAh	Yes (via USB-C)
Aqara Video Doorbell G3	Lithium-ion (Li-ion)	21700 (custom form factor)	3.7V	5000mAh	Yes (via USB-C)
Aqara Smart Doorbell Camera (Battery)	Lithium-ion (Li-ion)	18650 (standard)	3.7V	3000mAh	Yes (via USB-C)

Important Note: While the battery chemistry is lithium-ion across all models, the physical size and form factor differ. The G2H and G2H Pro use a proprietary 18650 battery (3000–3200mAh), while the G3 uses a larger 21700 battery (5000mAh), which is physically longer and wider. You cannot interchange batteries between models.

Why Aqara Uses Proprietary Batteries

Aqara’s use of non-standard battery form factors (especially in G2H and G3) is intentional. Here’s why:

• Space optimization: The compact design of the doorbell requires a custom-shaped battery to maximize internal space.
• Performance consistency: Proprietary batteries ensure optimal voltage regulation and thermal management, preventing overheating during rapid charging or high-load video streaming.
• Security and warranty: Using third-party or off-brand batteries may void your warranty and increase the risk of damage or safety issues.

For instance, the G3’s 21700 battery is 21mm in diameter and 70mm in length—larger than standard 18650 cells (18mm x 65mm). This allows Aqara to pack in 5000mAh of capacity, which is essential for supporting the G3’s advanced features like AI detection and 2K video recording.

Can You Use Standard Batteries?

Technically, you can find third-party 18650 or 21700 batteries that fit the physical dimensions, but we strongly advise against it for the following reasons:

• Incompatible firmware: Aqara batteries include a built-in chip for communication with the device (e.g., battery health monitoring, charging optimization). Third-party batteries may not support this, leading to inaccurate battery percentage readings or charging failures.
• Safety risks: Poor-quality batteries can overheat, leak, or even catch fire, especially when charged via USB-C at high currents.
• : Non-OEM batteries degrade faster, reducing the overall lifespan of your doorbell.

Pro Tip: Always purchase batteries directly from Aqara or authorized retailers. Look for the official Aqara logo and packaging. Avoid generic or “compatible” batteries from unknown sellers on marketplaces like Amazon or eBay.

How Long Do Aqara Doorbell Camera Batteries Last?

Battery Life Estimates by Model and Usage

Battery life isn’t a fixed number—it varies based on usage, settings, and environmental factors. Here’s a realistic breakdown of how long you can expect your Aqara Doorbell Camera to run on a full charge:

Model	Standby Time (Days)	Active Use (Events/Day)	Estimated Battery Life (Days)	Key Influencing Factors
G2H	60–90	10–15	45–60	Wi-Fi signal, motion sensitivity, video quality
G2H Pro	70–100	15–20	50–70	AI detection, night vision usage, weather conditions
G3	100–150	20–30	80–120	2K video, AI zones, spotlight activation

Note: “Active use” refers to the number of motion-triggered events per day (e.g., someone walking by, delivery person, etc.).

Factors That Drain Your Battery Faster

Even with a 5000mAh battery, poor settings or environmental issues can shorten battery life dramatically. Here are the top culprits:

• High motion sensitivity: Setting motion detection to “high” or “maximum” triggers more false alerts (e.g., moving shadows, trees), increasing recording and Wi-Fi usage.
• Frequent live streaming: Checking the camera feed multiple times a day via the Aqara app uses more power than passive recording.
• Weak Wi-Fi signal: If your router is far from the doorbell, the device works harder to maintain a connection, draining the battery.
• Cold weather: Lithium-ion batteries lose efficiency below 0°C (32°F). In winter, battery life can drop by 30–50%.
• Night vision usage: Infrared LEDs consume significant power, especially in low-light areas with frequent motion.

Real-World Example: A homeowner in Toronto, Canada, noticed their G3’s battery lasted only 40 days in winter (vs. 100+ days in summer). After troubleshooting, they discovered the issue: the doorbell was placed in a shaded area with poor Wi-Fi, and motion sensitivity was set to “high.” By adjusting the sensitivity, relocating the router, and using a Wi-Fi extender, battery life improved to 85 days.

Tips to Extend Battery Life

Want to get the most out of your battery? Try these proven strategies:

• Optimize motion zones: Use the Aqara app to define specific motion zones (e.g., front walkway only), reducing false triggers.
• Lower video quality: If 2K isn’t essential, switch to 1080p to save power (G3 only).
• Use AI detection: Enable “person” or “package” detection to ignore non-important motion (e.g., animals, vehicles).
• Install a Wi-Fi extender: A strong signal reduces power consumption.
• Schedule recordings: Set the doorbell to record only during peak hours (e.g., 7 AM–10 PM).
• Keep the camera clean: Dust or snow on the lens can trigger false motion alerts.

How to Replace and Maintain Your Aqara Doorbell Camera Battery

Step-by-Step Battery Replacement Guide

Replacing the battery is straightforward, but precision is key to avoid damaging the device. Here’s how to do it safely:

1. Power off the doorbell: Open the Aqara app, go to device settings, and disable the doorbell temporarily.
2. Remove the faceplate: Use the included pry tool or a plastic card to gently lift the front cover (don’t force it).
3. Locate the battery compartment: On G2H/G3 models, the battery is secured with a small screw or latch. Unscrew or unclip it.
4. Disconnect the battery: Carefully unplug the battery connector (it’s a small white clip—don’t pull on the wires).
5. Insert the new battery: Align the connector and push it in firmly. Secure the compartment.
6. Reattach the faceplate: Snap it back into place, ensuring no gaps or misalignment.
7. Charge the battery: Connect the doorbell to a USB-C cable (5V/2A recommended) for 4–6 hours.

Pro Tip: Always charge the battery indoors, away from direct sunlight or extreme temperatures. Overheating during charging can reduce battery lifespan.

Charging Best Practices

Proper charging habits can extend your battery’s health and longevity:

• Use the original USB-C cable: Aqara cables are designed for optimal charging current. Third-party cables may charge slower or damage the battery.
• Avoid full discharges: Lithium-ion batteries degrade faster when drained to 0%. Recharge when the battery reaches 20–30%.
• Don’t overcharge: Unplug the doorbell once it reaches 100%. Modern Aqara devices have built-in overcharge protection, but it’s still a good habit.
• Charge at room temperature: Charging in hot (above 40°C) or cold (below 0°C) environments reduces efficiency and can cause swelling.

Signs You Need a Battery Replacement

Even with proper care, batteries degrade over time. Watch for these warning signs:

• Battery life drops by 30–50% compared to when new.
• The doorbell shuts off unexpectedly during recording or live view.
• The battery takes longer to charge (e.g., 8+ hours for a full charge).
• The Aqara app shows “Battery Health: Poor” or “Replace Battery Soon.”

Replacement Timeline: Most Aqara batteries last 2–3 years with regular use. If your doorbell is older than this, consider replacing the battery even if it still works—preventive maintenance avoids mid-winter outages.

Wired vs. Battery-Powered: Which Option Is Right for You?

The Pros and Cons of Each Setup

While battery-powered models offer easy installation, wired options provide continuous power and eliminate battery maintenance. Here’s a comparison:

Factor	Battery-Powered	Wired (Transformer)
Installation	Easy (no wiring)	Requires electrical knowledge
Power Source	Rechargeable battery	Household 16–24V AC
Reliability	Subject to battery life	Continuous power (no outages)
Maintenance	Charge/replace every 1–3 months	Minimal (check transformer annually)
Weather Resistance	Good (IP54 rating)	Excellent (no battery compartment)
Best For	Renters, quick setups	Homeowners, long-term use

Can You Switch Between Power Modes?

Yes! Most Aqara doorbells (G2H, G2H Pro, G3) support dual power modes. You can:

• Start with battery power for easy setup.
• Later, connect to a doorbell transformer (16–24V AC) for continuous operation.
• When wired, the battery acts as a backup during power outages.

Example: A homeowner in California installed a G3 with battery power. After a year, they upgraded to a wired setup using a 24V transformer. Now, the battery charges automatically when the doorbell is idle, providing 24/7 reliability with zero maintenance.

Choosing the Right Option for Your Home

Consider these factors when deciding:

• Home ownership: Renters benefit from battery power; homeowners can invest in wiring.
• Climate: In cold regions, wired power avoids winter battery drain.
• Usage frequency: High-traffic homes (e.g., Airbnb) need wired reliability.
• Future-proofing: Wired setups integrate better with smart home systems (e.g., Alexa routines, HomeKit automations).

Final Advice: If you’re unsure, start with battery power. You can always switch to wired later—Aqara’s design makes it seamless.

Conclusion: Powering Your Aqara Doorbell Camera for Peak Performance

Understanding what size batteries an Aqara Doorbell Camera takes is just the beginning. From selecting the right model (G2H vs. G3) to optimizing settings for maximum battery life, every decision impacts your smart doorbell’s reliability and convenience. Whether you choose battery or wired power, Aqara’s innovative design ensures a secure, user-friendly experience—as long as you follow best practices.

Remember: always use official Aqara batteries, maintain proper charging habits, and adjust settings to match your usage patterns. A well-maintained doorbell not only lasts longer but also keeps your home safer. With the right power strategy, your Aqara Doorbell Camera will be a dependable guardian for years to come—no matter the weather, traffic, or season.

Frequently Asked Questions

What size batteries does the Aqara Doorbell Camera take?

The Aqara Doorbell Camera uses two CR2032 coin cell batteries, which are commonly used in small electronic devices. These batteries power the doorbell’s wireless functionality and camera features.

Can I use rechargeable batteries in my Aqara Doorbell Camera?

While CR2032 batteries are typically lithium-based, you can use rechargeable CR2032 batteries if they match the voltage (3V). However, ensure they fit properly, as some rechargeable variants may have slightly different dimensions.

How long do the batteries last in an Aqara Doorbell Camera?

With standard CR2032 batteries, the Aqara Doorbell Camera lasts approximately 6–12 months, depending on usage frequency and environmental conditions. Frequent motion detection or live streaming may shorten battery life.

Where can I buy replacement batteries for the Aqara Doorbell Camera?

CR2032 batteries are widely available at electronics stores, online retailers (like Amazon), or pharmacies. Always choose reputable brands to ensure compatibility and longevity with your Aqara Doorbell Camera.

Is it hard to replace the batteries in the Aqara Doorbell Camera?

No, replacing the batteries is straightforward—simply remove the back panel and swap out the two CR2032 cells. The process takes less than a minute and requires no special tools.

What happens if I use the wrong battery size in my Aqara Doorbell Camera?

Using incorrect battery sizes (e.g., CR2025 or CR2016) may damage the device or cause poor performance. Always use CR2032 batteries as specified in the Aqara manual to avoid risks.