What Batteries Does a Aqara Doorbell Use Find Out Here

The Aqara Doorbell uses two CR2032 coin cell batteries to power its smart features, ensuring long-lasting performance. These widely available batteries are easy to replace and keep your doorbell running smoothly for months. No complex setups—just simple, reliable power for your smart home!

Key Takeaways

• Use CR2450 batteries: Aqara doorbells require this specific coin cell for optimal performance.
• Check battery lifespan: Expect 6–12 months depending on usage and temperature conditions.
• Replace promptly: Low battery alerts ensure uninterrupted doorbell functionality—act quickly.
• Buy quality brands: Trusted brands like Panasonic or Duracell prevent leaks and failures.
• Store spares properly: Keep extra batteries in a cool, dry place for reliability.

The Power Behind Your Aqara Doorbell: What You Need to Know

Imagine this: you’re expecting an important package, and the delivery driver arrives. You’re away from home, but you want to greet them through your smart doorbell. You pull up the app on your phone, and… nothing. The camera doesn’t respond, the two-way audio is silent. The culprit? A dead battery. This frustrating scenario is one that many smart doorbell owners have faced, and it highlights a critical aspect of smart home technology: power management.

For Aqara, a brand known for its reliable and feature-rich smart home ecosystem, the choice of power source for their doorbells is a key consideration. Unlike traditional wired doorbells, many Aqara models are designed for wireless convenience, offering easy installation without the need for complex electrical work. However, this convenience comes with the responsibility of battery management. Understanding what batteries your Aqara doorbell uses, how long they last, and how to maintain them is essential for a seamless smart home experience. This comprehensive guide will answer the question: What batteries does a Aqara doorbell use? We’ll explore the different models, battery specifications, performance factors, and practical tips to keep your doorbell powered and performing at its best.

Aqara Doorbell Models and Their Battery Requirements

Aqara offers a range of doorbell models, each with slightly different battery configurations. It’s crucial to identify your specific model to ensure you’re using the correct batteries. Here’s a breakdown of the most popular Aqara doorbell models and their power sources:

1. Aqara Video Doorbell G2H (Battery-Powered Version)

This is one of the most popular wireless Aqara doorbells. It’s designed for easy installation and features a 1080p camera, night vision, two-way audio, and motion detection.

• Battery Type: CR123A Lithium Batteries (also known as 16340 batteries in some regions, though technically different chemistry).
• Number of Batteries: 2
• Key Feature: Uses non-rechargeable lithium batteries. This is a crucial distinction. While some might try to use rechargeable CR123A batteries, Aqara specifically recommends against it for safety and performance reasons.
• Example: You might purchase a pack of 4 CR123A batteries from reputable brands like Panasonic, Energizer, or Duracell. These are widely available online and in electronics stores.

2. Aqara Video Doorbell G3

The G3 is a more advanced model with a 156° wide-angle lens, facial recognition, and a built-in spotlight. It also comes in a battery-powered version.

• Battery Type: CR123A Lithium Batteries
• Number of Batteries: 2
• Key Feature: Like the G2H, it uses non-rechargeable lithium batteries. The higher resolution and additional features (like the spotlight) may lead to slightly faster battery drain compared to the G2H, depending on usage.
• Tip: If you use the spotlight frequently, consider having extra batteries on hand.

3. Aqara Video Doorbell G2H Pro

The G2H Pro is an upgraded version of the G2H, offering improved video quality, enhanced motion detection, and better night vision.

• Battery Type: CR123A Lithium Batteries
• Number of Batteries: 2
• Key Feature: Still uses non-rechargeable lithium batteries. The “Pro” designation refers to camera and software improvements, not a change in battery type.
• Important Note: Do not confuse this with a hypothetical “rechargeable G2H Pro.” The battery requirement remains the same.

4. Aqara Video Doorbell G2 (Wired Version)

While the focus here is on batteries, it’s worth mentioning that the G2 also has a wired version. This model connects to your home’s existing doorbell wiring (typically 8-24V AC or DC), eliminating the need for battery replacements.

• Power Source: Hardwired to existing doorbell circuit
• Battery Backup: Some wired models may have a small internal battery for temporary backup during power outages, but this is not the primary power source. The main power is from the wiring.
• Consideration: If you have existing doorbell wiring, the wired version might be a better choice for long-term reliability and reduced battery maintenance.

5. Other Aqara Models (e.g., Aqara Doorbell Hub)

Some Aqara doorbells, particularly older or regional models, might have different power requirements. For example, the Aqara Doorbell Hub (which pairs with other Aqara sensors) is typically powered by a micro-USB cable or an AC adapter.

• Power Source: External Power Adapter (e.g., 5V DC) or USB
• Key Point: Always check the product manual or the label on the device itself for the exact power specifications. Don’t assume all Aqara doorbells use the same batteries.

Critical Reminder: Always verify your specific Aqara doorbell model before purchasing batteries. The model number is usually found on the back of the device or in the packaging. Using the wrong batteries (especially rechargeable CR123A) can damage your doorbell or create a safety hazard.

Understanding CR123A Lithium Batteries: The Technical Details

Now that we know which Aqara doorbells use CR123A batteries, let’s delve deeper into the specifics of this battery type. Understanding the technical aspects will help you make informed choices about battery selection, performance, and safety.

What Exactly is a CR123A Battery?

CR123A is a designation for a specific type of primary (non-rechargeable) lithium battery. Here’s what the name means:

• C: Indicates the battery chemistry is lithium manganese dioxide (Li-MnO2). This chemistry provides a high energy density and stable voltage.
• R: Stands for “round” (cylindrical shape).
• 123A: Refers to the battery’s dimensions: approximately 34.5mm in length and 17mm in diameter. The “A” is a size designation.
• Voltage: CR123A batteries provide a nominal voltage of 3.0 volts.
• Capacity: Typical capacity ranges from 1400 to 1700 milliamp-hours (mAh), depending on the brand and quality.

Why Aqara Uses CR123A Batteries: Advantages

Aqara chose CR123A batteries for several compelling reasons that align with the needs of a smart doorbell:

• High Energy Density: CR123A batteries pack a lot of power into a small package. This is essential for a device that needs to run a camera, microphone, speaker, Wi-Fi module, and motion sensor.
• Stable Voltage Output: Lithium batteries maintain a relatively constant voltage throughout their discharge cycle. This ensures consistent performance from your doorbell’s camera and audio components, preventing issues like flickering video or distorted sound.
• Wide Operating Temperature Range: CR123A batteries perform well in a wide range of temperatures, from -40°C to +60°C (-40°F to +140°F). This makes them suitable for doorbells exposed to extreme weather conditions (hot summers, cold winters).
• Long Shelf Life: Lithium batteries have a shelf life of up to 10 years when stored properly. This means you can stock up on spare batteries without worrying about them degrading quickly.
• Low Self-Discharge: Lithium batteries lose very little of their charge when not in use, unlike some other battery types.

Why Aqara Doesn’t Use Rechargeable CR123A Batteries

This is a common point of confusion. You might find “rechargeable CR123A” batteries (often labeled as RCR123A or 16340) on the market. However, Aqara explicitly advises against using them for several important reasons:

• Different Chemistry: Rechargeable CR123A batteries typically use lithium-ion (Li-ion) or lithium-polymer (Li-Po) chemistry. These have different voltage characteristics (usually 3.6V-3.7V nominal, 4.2V when fully charged) and discharge curves compared to primary lithium CR123A batteries.
• Voltage Mismatch: The higher voltage of rechargeable CR123A batteries can potentially damage the sensitive electronics in your Aqara doorbell. The doorbell’s internal circuitry is designed for the 3.0V output of primary CR123A batteries.
• Safety Hazards: Using rechargeable batteries in a device not designed for them can lead to overheating, leakage, or even fire in extreme cases. Aqara’s warranty may be voided if rechargeable batteries are used.
• Performance Issues: Even if the doorbell appears to work initially, the different discharge characteristics of rechargeable batteries can lead to unpredictable battery life, premature low-battery warnings, or erratic performance.

Rule of Thumb: Only use primary (non-rechargeable) CR123A lithium batteries in your Aqara doorbell. This is a safety and performance imperative.

Identifying Genuine CR123A Batteries

Unfortunately, the market is flooded with counterfeit or low-quality batteries. Here’s how to ensure you’re buying genuine CR123A batteries:

• Buy from Reputable Retailers: Purchase from authorized electronics stores, well-known online retailers (like Amazon, with verified sellers), or directly from battery manufacturers.
• Check the Packaging: Genuine batteries have professional, well-printed packaging with clear branding, specifications, and safety information. Counterfeit batteries often have blurry text, spelling errors, or generic packaging.
• Look for Brand Names: Stick to trusted brands like Panasonic, Energizer, Duracell, Sony, or Maxell. Avoid unknown or generic brands.
• Verify the Weight: Genuine CR123A batteries have a specific weight (around 16-17 grams). Counterfeit batteries might be lighter or heavier.
• Check for Safety Certifications: Look for certifications like CE, RoHS, or UN38.3 (for transportation safety).

Example: A pack of 4 Panasonic CR123A batteries from a reputable seller on Amazon is a safe bet. Avoid cheap, no-name batteries from unknown websites.

Battery Life and Performance: What to Expect

One of the biggest concerns for smart doorbell owners is battery life. How long will the batteries last? The answer depends on several factors, but here’s a realistic breakdown for Aqara doorbells using CR123A batteries.

Average Battery Life Expectations

Under typical usage conditions, you can expect the following battery life:

• Average Lifespan: 3 to 6 months with two CR123A batteries (1400-1700 mAh capacity).
• Best-Case Scenario (Light Use): If you have infrequent motion events, rarely view live video, and don’t use the spotlight (on the G3), batteries might last up to 8-10 months.
• Worst-Case Scenario (Heavy Use): If you have frequent motion detection (e.g., a busy street, pets in the yard), frequently view live video, use the spotlight regularly, or live in a very cold climate, batteries might drain in as little as 2-3 months.

Important: These are estimates. Actual battery life varies significantly based on your specific usage patterns and environmental conditions.

Factors That Affect Battery Life

Several factors influence how quickly your Aqara doorbell batteries drain:

• Motion Detection Frequency: The more motion events your doorbell detects, the more it activates the camera, Wi-Fi connection, and recording. This is the biggest drain on battery life. If your doorbell is facing a busy street or a frequently used path, expect faster battery drain.
• Video Recording and Live Viewing: Recording video and streaming live video to your phone or tablet consume significant power. Frequent live viewing sessions will shorten battery life.
• Two-Way Audio Usage: Using the two-way audio feature to communicate with visitors also drains the battery.
• Spotlight Usage (G3 Only): The G3’s built-in spotlight is a major power consumer. Using it frequently, even for short periods, will noticeably reduce battery life.
• Wi-Fi Signal Strength: A weak Wi-Fi signal forces the doorbell to work harder to maintain a connection, increasing power consumption. Ensure your doorbell has a strong Wi-Fi signal (at least 2-3 bars).
• Temperature Extremes: Very cold temperatures (below freezing) significantly reduce battery capacity and output. Lithium batteries perform best in moderate temperatures. In cold climates, you might need to replace batteries more frequently during winter months.
• Battery Quality: Using low-quality or counterfeit batteries will result in shorter life and potentially erratic performance.
• Doorbell Settings: Features like “Human Detection,” “Facial Recognition” (G3), and “Pre-Record” require additional processing power, which can impact battery life.

Monitoring Battery Level and Low-Battery Alerts

Aqara doorbells provide several ways to monitor battery level and receive alerts:

• Aqara Home App: The primary way to check battery level. Open the app, select your doorbell, and look for the battery icon. It typically shows a percentage or a visual indicator (e.g., full, half, low, critical).
• Low-Battery Notifications: The app will send you push notifications when the battery level drops below a certain threshold (usually around 20-30%). This gives you time to replace the batteries before the doorbell dies completely.
• Visual Indicator (Some Models): Some Aqara doorbells have a small LED on the device itself that changes color or flashes when the battery is low.
• Sound Alerts (Rare): A few models might emit a short beep when the battery is critically low.

Tip: Don’t wait until you receive a low-battery alert. Check the battery level in the app every few weeks, especially during periods of heavy use or cold weather. Proactive battery replacement prevents unexpected outages.

Extending Battery Life: Practical Tips

Here are some practical tips to maximize your Aqara doorbell’s battery life:

• Optimize Motion Detection Zones: In the Aqara Home app, adjust the motion detection zones to focus on the area where visitors are most likely to approach. Avoid covering areas with frequent movement (e.g., trees, busy streets) to reduce false triggers.
• Adjust Motion Detection Sensitivity: Lower the sensitivity if you’re getting too many false alarms. This reduces the number of times the camera activates.
• Limit Live Viewing Sessions: Avoid unnecessarily long live viewing sessions. Use it only when needed.
• Use Spotlight Wisely (G3): Only activate the spotlight when necessary. Consider using motion-triggered spotlight instead of constant illumination.
• Ensure Strong Wi-Fi Signal: Use a Wi-Fi extender or mesh system if your doorbell is far from your router. A strong signal reduces power consumption.
• Keep the Doorbell Clean: Dust and dirt on the camera lens can make it harder to see, potentially leading to more motion events being triggered.
• Use High-Quality Batteries: As mentioned earlier, genuine, high-capacity batteries last longer and perform more reliably.
• Store Spare Batteries Properly: Keep spare batteries in a cool, dry place, away from direct sunlight and extreme temperatures. This maintains their shelf life.
• Consider the Wired Option (If Possible): If you have existing doorbell wiring, the wired version of the Aqara doorbell eliminates the battery replacement hassle entirely.

Replacing Aqara Doorbell Batteries: A Step-by-Step Guide

Replacing the batteries in your Aqara doorbell is a simple process, but it’s important to do it correctly to avoid damaging the device or voiding the warranty. Here’s a detailed, step-by-step guide:

Tools and Materials You’ll Need

• Two new CR123A lithium batteries (non-rechargeable) – Ensure they are fresh and from a reputable brand.
• Small Phillips-head screwdriver (if required by your model) – Some doorbells have a small screw securing the battery cover.
• Clean microfiber cloth – For wiping the battery compartment and contacts.

Step-by-Step Battery Replacement Process

1. Prepare the Area: Find a clean, well-lit workspace. If your doorbell is mounted outside, you might want to bring it inside for easier handling.
2. Power Down (Optional but Recommended): While not always required, you can temporarily turn off the doorbell in the Aqara Home app to prevent any unexpected activity during battery replacement.
3. Locate the Battery Compartment: The battery compartment is usually on the back or bottom of the doorbell. Look for a small panel or cover.
4. Open the Battery Cover:
   • Slide-Off Cover: Some models have a cover that slides off. Gently push it in the direction indicated by arrows (if present).
   • Screw-Secured Cover: Other models have a small screw. Use the Phillips-head screwdriver to remove the screw, then gently lift the cover.
5. Remove the Old Batteries: Carefully remove the two old CR123A batteries from the compartment. Note the orientation (positive and negative terminals). Take a photo with your phone to remember the correct orientation if needed.
6. Clean the Battery Compartment and Contacts: Use the microfiber cloth to gently wipe away any dust, dirt, or corrosion from the battery compartment and the metal contacts. This ensures good electrical connection with the new batteries.
7. Insert the New Batteries: Insert the two new CR123A batteries into the compartment, paying close attention to the polarity (positive and negative terminals). Make sure they are seated securely and in the correct orientation (refer to your photo or the markings in the compartment).
8. Close the Battery Cover: Replace the cover and secure it. If it’s a screw-secured cover, tighten the screw gently – don’t over-tighten.
9. Power On and Test:
   • The doorbell should power on automatically or after a few seconds.
   • Open the Aqara Home app and check that the doorbell is connected and functioning.
   • Check the battery level in the app – it should show a high percentage.
   • Test the camera, audio, and motion detection features.
10. Update Firmware (If Available): After replacing batteries, check the app for any available firmware updates for your doorbell. Updates can improve performance and battery efficiency.

Safety Precautions and Troubleshooting

• Handle Batteries Carefully: Don’t short-circuit the batteries (don’t touch both terminals with metal at the same time). Don’t puncture or crush them.
• Dispose of Old Batteries Properly: CR123A batteries contain lithium and should be recycled at designated battery recycling centers. Do not throw them in the regular trash.
• Check for Damage: Before inserting new batteries, inspect the battery compartment and contacts for any signs of damage, corrosion, or loose connections. If you see damage, contact Aqara support.
• Doorbell Not Powering On: If the doorbell doesn’t power on after replacing batteries, check:
  • Battery orientation (are they inserted correctly?)
  • Battery charge (are the new batteries fresh?)
  • Clean battery contacts (did you clean them properly?)
  • Firmware issues (try restarting the doorbell in the app)
• Low Battery Warning Persists: If you still see a low battery warning after replacing batteries, try restarting the doorbell through the app. If the issue persists, contact Aqara support – there might be a hardware issue with the battery level sensor.

Frequency of Battery Replacement

As discussed earlier, battery replacement frequency depends on usage. Here’s a recommended schedule:

• Light Use: Every 6-8 months
• Moderate Use: Every 4-6 months
• Heavy Use: Every 2-4 months
• Cold Climate: More frequently during winter months

Tip: Set a reminder in your phone’s calendar or use the Aqara app’s low-battery alerts to stay on top of battery replacements.

Battery Cost, Availability, and Environmental Considerations

Understanding the cost, availability, and environmental impact of Aqara doorbell batteries is important for making informed decisions.

Battery Cost and Value

The cost of CR123A batteries varies depending on brand, quantity, and retailer:

• Single Battery: $3-$6
• Pack of 4 Batteries: $10-$20 (better value per battery)
• Bulk Packs (8-12 batteries): $20-$30 (best value for frequent users)

Cost-Saving Tips:

• Buy in Bulk: Purchasing larger packs reduces the per-battery cost.
• Look for Sales and Discounts: Check for promotions on Amazon, electronics stores, or battery specialty websites.
• Compare Prices: Use price comparison websites to find the best deals.
• Consider the Long-Term Cost: While rechargeable batteries might seem cheaper initially, the safety and performance risks outweigh the potential savings. Stick with primary CR123A batteries for reliability.

Battery Availability

CR123A batteries are widely available, but it’s best to know where to look:

• Online Retailers: Amazon, Walmart.com, BestBuy.com, B&H Photo, Battery Junction
• Electronics Stores: Best Buy, Micro Center, Fry’s Electronics (if available)
• Hardware Stores: Some larger hardware stores carry specialty batteries.
• Battery Specialty Stores: Stores that focus on batteries often have a wider selection and expertise.

Tip: Order spare batteries in advance, especially if you live in a remote area or want to avoid last-minute trips to the store.

Environmental Impact and Disposal

CR123A lithium batteries have an environmental impact that should be considered:

• Lithium Mining: Lithium is a finite resource, and mining it can have environmental and social consequences.
• Manufacturing and Transportation: Producing and shipping batteries consumes energy and resources.
• Disposal: Never throw CR123A batteries in the regular trash. Lithium batteries can pose fire hazards in landfills and release harmful chemicals if not properly disposed of.

Responsible Disposal Options:

• Recycling Centers: Most cities have designated battery recycling centers. Search for “battery recycling near me” online.
• Retailer Take-Back Programs: Some electronics stores (like Best Buy) offer battery recycling programs.
• Household Hazardous Waste (HHW) Collection: Check with your local waste management authority for HHW collection events.
• Mail-Back Programs: Some companies offer mail-back services for battery recycling (e.g., Call2Recycle).

Sustainable Practices:

• Buy Only What You Need: Avoid stockpiling excessive batteries, which might expire before use.
• Use Batteries Efficiently: Follow the battery life extension tips mentioned earlier to reduce the number of batteries you need to buy and dispose of.
• Support Sustainable Brands: Choose battery manufacturers that prioritize sustainability in their operations.

Conclusion: Powering Your Aqara Doorbell for Optimal Performance

Understanding what batteries your Aqara doorbell uses is fundamental to enjoying a reliable and hassle-free smart home experience. As we’ve explored, the most common Aqara doorbell models (G2H, G2H Pro, G3) use two non-rechargeable CR123A lithium batteries. These batteries offer the high energy density, stable voltage, and wide temperature range needed for a smart doorbell to perform reliably.

Key takeaways from this comprehensive guide:

• Identify Your Model: Always verify your specific Aqara doorbell model to ensure you’re using the correct batteries.
• Use Primary CR123A Batteries: Never use rechargeable CR123A batteries. This is crucial for safety, performance, and warranty validity.
• Choose Quality Batteries: Invest in genuine CR123A batteries from reputable brands to maximize battery life and reliability.
• Monitor Battery Life: Regularly check the battery level in the Aqara Home app and respond to low-battery alerts promptly.
• Optimize Usage: Adjust motion detection zones, limit live viewing, and use the spotlight (G3) wisely to extend battery life.
• Replace Batteries Correctly: Follow the step-by-step guide to ensure a safe and successful battery replacement.
• Dispose of Batteries Responsibly: Recycle CR123A batteries at designated centers to minimize environmental impact.

By following these guidelines, you can keep your Aqara doorbell powered, responsive, and ready to capture every important moment at your doorstep. Remember, a well-maintained doorbell is a reliable doorbell. Don’t let a dead battery be the reason you miss a package, a visitor, or a memorable moment. Stay informed, stay prepared, and enjoy the convenience of your Aqara smart home system. The power, quite literally, is in your hands – or rather, in the right batteries.

Aqara Doorbell Battery Comparison Table

Model	Battery Type	Number of Batteries	Rechargeable?	Typical Battery Life	Key Features Affecting Battery
Aqara G2H (Battery)	CR123A Lithium	2	No	3-6 months	1080p camera, night vision, motion detection
Aqara G3	CR123A Lithium	2	No	3-5 months	156° lens, spotlight, facial recognition
Aqara G2H Pro	CR123A Lithium	2	No	3-6 months	Improved camera, enhanced motion detection
Aqara G2 (Wired)	Hardwired (8-24V AC/DC)	0 (primary)	N/A	Continuous (with power)	Existing wiring, no battery replacements
Aqara Doorbell Hub	5V DC Adapter/USB	0	N/A	Continuous (with power)	External power source, hub functionality

Frequently Asked Questions

What type of batteries does an Aqara doorbell use?

Most Aqara doorbells, like the Aqara Video Doorbell G2H, use **two CR123A lithium batteries**. These 3V batteries provide long-lasting power and are commonly found in security devices. Some models may support rechargeable variants, but always check your manual first.

How long do the batteries last in an Aqara doorbell?

Battery life varies by model and usage but typically lasts **3–6 months** with standard CR123A batteries. Frequent motion detection or video recording can shorten this timeframe. Monitoring via the Aqara app helps track battery levels.

Can I use rechargeable batteries in my Aqara doorbell?

Yes, but only **rechargeable CR123A batteries** (3.7V Li-ion) are recommended for compatible models. Avoid standard NiMH rechargeables, as they output 1.2V and may damage the device. Always verify compatibility in your doorbell’s manual.

Where can I buy batteries for my Aqara doorbell?

CR123A batteries are widely available online (Amazon, eBay) or at electronics stores like Best Buy. For reliability, opt for **trusted brands like Panasonic or Duracell** to ensure optimal performance and safety.

Why does my Aqara doorbell keep losing battery quickly?

Rapid drain may stem from **excessive motion triggers, extreme temperatures, or low-quality batteries**. Ensure your doorbell isn’t in direct sunlight or near heat sources, and replace batteries with high-grade CR123As.

What happens if I use the wrong batteries in my Aqara doorbell?

Using incorrect batteries (e.g., wrong voltage or type) can cause **malfunctions, poor performance, or permanent damage**. Stick to CR123A lithium batteries as specified by Aqara to avoid risks and maintain warranty coverage.