Ever found yourself fumbling with keys, only to wish your smart lock was, well, smarter about its power? August Smart Locks are fantastic for convenience and security, but like any electronic gadget, they need a reliable power source to keep your home humming. The last thing you want is to be locked out because of a dead battery. So, finding the best battery for August Smart Lock isn’t just about saving a few bucks; it’s about peace of mind.
In this guide, we’re diving deep into the world of smart lock power. We’ll explore the types of batteries August locks typically use, highlight top-performing options, and even look at alternative power solutions to keep your digital deadbolt running smoothly. Let’s get to it!
Understanding August Smart Lock Battery Needs
August Smart Locks primarily use two types of batteries:
- AA Batteries: Older August Smart Lock models (like the 3rd Gen) commonly use four standard AA batteries. These are widely available and easy to replace.
- CR123A Lithium Batteries: Newer August Wi-Fi Smart Locks (like the 4th Gen) often utilize two CR123A lithium batteries. These offer higher voltage and longer shelf life, suitable for power-hungry Wi-Fi features.
It’s super important to check your specific August Smart Lock model to know which battery type it requires. Our focus here is on helping you find the ultimate power solution.
Top Battery & Power Solutions for Your Smart Lock
Here’s a look at some of the best choices and related smart lock products, keeping an eye on the best battery for August Smart Lock and general smart lock power reliability.
August Home, Silver Wi-Fi Connected Smart Keyless Entry…
This isn’t a battery itself, but the August Wi-Fi Smart Lock represents the cutting edge of smart home security, and understanding its power needs is crucial. This model integrates directly with your home’s Wi-Fi, offering seamless remote access and voice assistant compatibility without needing an extra bridge. Its sleek design fits right over your existing deadbolt, maintaining your home’s curb appeal while adding layers of smart functionality. This particular model typically uses CR123A lithium batteries to power its robust features.
- UPGRADE YOUR EXISTING DEADBOLT: Attaches to the inside of your door.
- GRANT ACCESS WITH THE AUGUST APP: Share temporary or permanent access.
- EASY TO INSTALL ON ANY DOOR: Simple 10-minute setup.
- AUTO-LOCKS AND UNLOCKS: Hands-free entry and automatic security.
- WORKS SEAMLESSLY WITH YOUR SMART HOME: Built-in Wi-Fi for voice assistants.
- AWARD-WINNING SMART LOCK YEAR AFTER YEAR: Recognized by CNET, Good Housekeeping, Tom’s Guide.
- KEEP YOUR HOME’S CURB APPEAL: Internal installation preserves exterior look.
- ADD A KEYPAD FOR USE WITH CODES: Optional accessory for phone-free entry.
- FACE OR FINGERPRINT ID FOR EXTRA SECURITY: Biometric authentication option.
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REQUIREMENT: Free August app, Wi-Fi internet connection (2.4GHz or 5GHz).
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Pros:
- Seamless Wi-Fi connectivity built-in.
- Easy installation and renter-friendly.
- Comprehensive smart features (Auto-Unlock, DoorSense).
- Maintains exterior appearance of your door.
- Integrates well with major smart home platforms.
- Cons:
- Requires specific CR123A lithium batteries (not included for ongoing use).
- Advanced features can drain batteries faster.
- Wi-Fi dependency might be an issue during outages.
User Impressions: Users love the convenience of auto-unlock and the ability to manage access remotely. They frequently highlight the easy installation and seamless smart home integration. However, some users note that the battery life, while decent, can be shorter than expected due to constant Wi-Fi communication, making a reliable battery choice even more critical.
See it on Amazon here
Energizer 123 Lithium Batteries (6 Pack), 3V Photo Batteries
If your August Wi-Fi Smart Lock calls for CR123A batteries, these Energizer 123 Lithium Batteries are a fantastic choice. Known for their long-lasting power and reliability, these batteries are specifically designed for high-drain devices like cameras and, yes, modern smart locks. They offer stable voltage output, which is crucial for consistent performance from your August lock, ensuring you won’t be caught off guard by unexpected battery drain.
- 6 pack of Energizer 123 Lithium Batteries: Ample supply for multiple replacements.
- Energizer 123 lithium battery provides serious power for your high tech devices: Ideal for demanding electronics.
- Ideal batteries for cameras, flashlights and smart home devices: Versatile for various gadgets.
- Powerful photo batteries last up to 10 years in storage: Excellent shelf life.
- Energizer 123 lithium photo battery replaces 5018LC, CR123, CR123A, CR17345 and EL123: Wide compatibility.
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Provides reliable power for smart home devices and flashlights: Consistent and dependable performance.
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Pros:
- Excellent longevity for high-drain devices like August Wi-Fi Smart Locks.
- Long 10-year shelf life, great for stocking up.
- Reliable and consistent power output.
- Widely recognized and trusted brand.
- Cons:
- Not rechargeable, so a continuous expense.
- Can be more expensive upfront than alkaline alternatives.
User Impressions: Customers consistently praise these Energizer batteries for their impressive longevity in various high-tech devices, including smart home gadgets. Many report getting extended life out of their devices compared to generic brands, making them a go-to choice for dependable power.
See it on Amazon here
AC-Powered AA Battery Adapter (Replaces 4 AA Only)…
For August Smart Lock models that use 4 AA batteries, this AC-Powered AA Battery Adapter offers an ingenious solution for continuous power. Imagine never having to change batteries again! This adapter allows you to plug your smart lock directly into a wall outlet, effectively turning it into a perpetually powered device. It’s particularly useful for August locks on doors where an outlet is nearby, providing uninterrupted service and saving you money on disposable batteries in the long run.
- Continuous power supply: 24-hour usage without constantly changing batteries.
- Unique design: Flat cable fits easily below the device for discreet closure.
- Wide Applications: Functions as 4 AA batteries (6V/1A output) for various devices.
- Package Includes: AC power adapter, 3 dummy AA batteries, 1 dummy AA battery with flat cable/switch/plug.
- Simplified Version: Compatible with devices using 4 AA batteries (6V/1A output).
- Safety: Non-rechargeable adapter, must plug into a wall adapter (included).
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Hassle-free after-sales service: 30-day money-back guarantee, 24-hour online support.
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Pros:
- Eliminates the need for constant battery replacement.
- Cost-effective over time by avoiding disposable batteries.
- Provides continuous, reliable power.
- Ideal for smart locks in high-traffic areas.
- Can be integrated with smart plugs for remote control.
- Cons:
- Requires an accessible wall outlet near the door.
- Not suitable for all August Smart Lock models (only those using 4 AA batteries).
- Cable management might be a consideration for aesthetics.
User Impressions: Users who have a suitable setup rave about the convenience of never worrying about battery life again. They appreciate the steady power supply, especially for devices that frequently drain batteries. The ease of installation and the discreet flat cable design are frequently highlighted positives.
See it on Amazon here
NASTIMA Security Rechargeable Battery Compatible with eufy…
While this NASTIMA rechargeable battery is specifically designed for eufy smart locks (like the S330, S230, etc.), it showcases the advantages of high-capacity, rechargeable lithium-ion solutions for smart home security. With a massive 10500mAh capacity, it promises extended operation, reducing the frequency of recharging. This type of robust power pack, though for eufy, highlights what makes a great smart lock battery: strong capacity, safety features, and convenience.
- Fully Compatibility: Specifically designed for eufy S330 S230 E330 S231 Video Smart Lock and Smart Drop.
- Technical Specification: Voltage: 3.6/3.7V; Capacity: 10500mAh; Type: Li-ion; Compact dimension.
- Charging Indicator: Dual color LED shows charging status (flashing green for charging, solid green for full).
- Safety: Grade A+ cells with Over Charge, Over Discharge, Short-circuit, and Over-temperature protection.
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100% Satisfaction: 35-day money-back guarantee, 1-year warranty, 24-hour support.
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Pros:
- Extremely high capacity (10500mAh) for long-lasting power.
- Built-in safety features protect the battery and device.
- Convenient LED charging indicator.
- Rechargeable, saving money on disposable batteries.
- Cons:
- Not compatible with August Smart Locks.
- Requires periodic recharging.
User Impressions: Eufy smart lock users commend this battery for its extended life and reliable performance, often noting a significant improvement over original or lower-capacity alternatives. The quick charging and safety features also receive positive feedback, making it a popular choice for their eufy devices.
See it on Amazon here
August Home Smart Lock – Keyless Home Entry with Your…
This is another August Smart Lock model, emphasizing its integration with Alexa and its ability to notify you when the battery is running low – a super handy feature for avoiding lockouts. This version also typically uses AA batteries for its power source, and August thoughtfully includes them for initial setup. It attaches easily to your existing deadbolt, keeping your original keys as a backup, and offers unique features like Door Sense to tell you if your door is securely closed. Reliable batteries are key to enjoying all its conveniences.
- Connect your August smart lock to Alexa: Lock, unlock, check status, and get low battery notifications.
- Keep your existing lock and keys: Attaches to your existing deadbolt on the inside.
- Grant family, friends or the dog walker unlimited access: Flexible access sharing.
- Only August has Door Sense: Sensor tells you if your door is securely closed or left open.
- Unlocks automatically as you arrive: Hands-free entry. Auto Lock can be timed.
- Add an August Wi-Fi Connect Bridge (sold separately) for Remote access or Alexa integrations: For remote functionality.
- Add an August Smart Keypad for secure key-code entry: Optional accessory.
- August App is available for download: Requires iOS 9.0+ or Android 5.0+.
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Requires 4 AA batteries: Included in box for initial install and use.
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Pros:
- Seamless Alexa integration with battery notifications.
- Door Sense provides added security awareness.
- Auto-unlock and auto-lock features are highly convenient.
- Easy to install and retains existing keys.
- Cons:
- Remote access and full smart home integration require a separate Wi-Fi Connect Bridge.
- Relies on 4 AA batteries, which will need eventual replacement.
User Impressions: Owners frequently highlight the ease of installation and the peace of mind offered by Door Sense. The auto-unlock feature is a consistent favorite. While the reliance on a separate bridge for full remote access is sometimes mentioned, users are generally very satisfied with the core functionality and the helpful battery alerts.
See it on Amazon here
ADDPOWER Security Rechargeable Battery for eufy S330 S230…
Another high-capacity rechargeable battery for eufy smart locks, the ADDPOWER battery offers an impressive 10,500 mAh capacity for extended use. Designed with quick Type-C charging, it provides a convenient and environmentally friendly alternative to disposable batteries. Its robust build, including BHMA certification and IP65 waterproofing, speaks to its durability and reliability in various conditions. While not for August, it exemplifies a premium rechargeable power source for demanding smart lock applications.
- Basic Parameters: LxWxH: 76x59x21mm, Weight: 170g±5g, Type-c Fast Charging.
- Large Capacity: 10,500 mAh ultra-large capacity ensures long time continuous operation.
- Adaptable Models: Specifically for eufy security S330 S230 S220 E330 3-in-1 Video Smart Lock, Smart Lock Touch & Wi-Fi, and Smart Drop.
- Quick Charge & Installation: Easy battery removal for charging (no need to remove the lock). Input: 5V/2A.
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Package Contents: 1x rechargeable battery, 1x USB charging cable.
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Pros:
- High 10,500 mAh capacity for prolonged use.
- Convenient Type-C fast charging.
- Durable with BHMA certification and IP65 waterproofing.
- Rechargeable, reducing waste and long-term costs.
- Cons:
- Exclusively compatible with eufy smart lock models.
- Still requires periodic removal for recharging.
User Impressions: Eufy smart lock users are very positive about the long-lasting power this battery provides, often noting that it significantly extends the time between charges. The convenience of USB-C charging and the ease of swapping out the battery without removing the lock are frequently praised features.
See it on Amazon here
August Home Smart Lock, 3rd Generation – Silver
The August Smart Lock 3rd Generation is a popular choice for those looking to smarten up their existing deadbolt without replacing the entire lock. This model is known for its straightforward installation and user-friendly app interface, allowing you to lock and unlock your door with your phone or even an Apple Watch. It maintains your home’s exterior aesthetic by installing only on the inside and, crucially, it’s typically powered by 4 AA batteries. Its “renter-friendly” design means you can easily take it with you when you move, making your investment truly portable.
- YOUR LOCK ON THE OUTSIDE, A SMART LOCK ON THE INSIDE: Replaces the thumbturn, keeps exterior the same.
- GET IN AND OUT WITH THE AUGUST APP: Lock/unlock with phone or Apple Watch.
- AUTO-LOCKS AND UNLOCKS: Hands-free unlocking, auto-secures when door is closed.
- EASY TO INSTALL ON ANY DOOR: Takes about 10 minutes, fits most single cylinder deadbolts.
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RENTER-FRIENDLY: Easy to install and remove, take it with you when you move.
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Pros:
- Incredibly easy and quick installation.
- Maintains existing keys and exterior look.
- Convenient auto-unlock and auto-lock features.
- Renter-friendly design.
- Simple app control.
- Cons:
- Requires a separate August Connect Wi-Fi bridge for remote access (not included).
- Uses 4 AA batteries, which need periodic replacement.
- No built-in keypad.
User Impressions: This 3rd-gen lock receives high marks for its simplicity and reliability. Users love the auto-unlock feature and the ability to grant temporary access. While some wish it had built-in Wi-Fi, many find the ease of installation and the ability to use standard AA batteries to be major advantages.
See it on Amazon here
Yale August Wi-Fi Smart Lock with Keypad Touch in Black
This Yale August Wi-Fi Smart Lock takes convenience to the next level by combining the popular August smart lock technology with a fingerprint-enabled keypad. It’s truly a smarter lock that integrates directly with your Wi-Fi, eliminating the need for extra hubs. The standout feature is the fingerprint unlock, offering incredibly fast and secure keyless entry. For power, like other Wi-Fi August locks, it uses CR123A batteries, ensuring it can handle the demands of its advanced features.
- SMARTER LOCK, SAME DEADBOLT: Installs on the inside, keeps existing deadbolt.
- UNLOCK WITH YOUR FINGERPRINT: Fingerprint scanner for 99% accuracy and convenience.
- ACCESS FOR ALL: Multiple entry options: fingerprint, Auto-Lock, Auto-Unlock, custom codes, Yale Access app.
- NO MORE HIDING KEYS: Share custom entry codes and track activity.
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SMART FROM THE START: Built-in Wi-Fi, no additional hubs required.
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Pros:
- Built-in Wi-Fi for direct smart home integration.
- Fingerprint unlock offers unparalleled convenience and security.
- Multiple ways to access the home.
- Easy installation over existing deadbolt.
- Activity feed for monitoring entry/exit.
- Cons:
- Higher price point due to advanced features.
- Relies on CR123A batteries, which can be more expensive than AAs.
- Fingerprint scanner sensitivity can be affected by dirt/moisture.
User Impressions: Customers absolutely love the fingerprint recognition feature, calling it a game-changer for quick and secure entry. The built-in Wi-Fi and the ability to share codes are also highly praised. While some note the battery life might be shorter with constant Wi-Fi use, the convenience often outweighs this for many users.
See it on Amazon here
S330 Battery for Eufy Security S330/E330/S230/S231/S220…
This BURFLO POWER battery is an upgraded, high-capacity solution designed specifically for Eufy Security smart locks. Boasting an impressive 10,500mAh capacity, it ensures your eufy security system runs smoothly and without interruption for extended periods. Its robust design allows it to work across a wide temperature range, making it reliable in various climates. While it’s crucial to note this is for Eufy locks, it represents the kind of dedicated, high-performance battery you’d want for any demanding smart lock.
- Upgraded to 10500mAh High Capacity: Ensures uninterrupted security system operation.
- Wide compatibility: Fully compatible with eufy Security S330/E330 3-in-1 Video Smart Lock, S230/S231/S220 Smart Lock, Smart Drop, and others.
- Easy to use: Tool-free installation and removal, comes with a 17.3-inch Type-C charging cable.
- BURFLO POWER Protection: Multiple circuit protections (over-charging, short-circuit, high-temperature, etc.).
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BURFLO GUARANTEE: US-based company with responsive customer service.
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Pros:
- Exceptionally high capacity (10,500mAh) for long battery life.
- Built-in comprehensive safety protections.
- Easy, tool-free installation and removal for charging.
- Wide operating temperature range.
- Includes Type-C charging cable.
- Cons:
- Not compatible with August Smart Locks.
- Requires periodic recharging like all rechargeable batteries.
User Impressions: Eufy users highly rate this battery for its extended life and quick charging capability. The convenience of not having to remove the entire lock to charge the battery is a major plus, and the robust build quality and safety features provide peace of mind.
See it on Amazon here
eufy Rechargeable Battery for S330 3-in-1 Video Smart Lock,…
This is the official eufy rechargeable battery, designed to perfectly complement the advanced features of their S330 and other smart lock models. With a substantial 10,000 mAh capacity, it ensures consistent power for video streaming, motion detection, and other smart lock functionalities. The quick-release battery pack design is a game-changer, allowing you to easily pop out the battery for recharging without having to remove the entire smart lock from your door. This highlights a user-friendly approach to smart lock power management.
- 10,000 mAh Capacity: Compliments advanced features for extended use.
- eufy Rechargeable Battery: Specifically for eufy S330, E330, S230, E31, and Smart Drop.
- Quick Release Battery Pack: No need to remove the smart lock from your door to recharge.
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Rechargeable: Saves money and offers convenience over single-use batteries.
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Pros:
- High capacity (10,000 mAh) for reliable, long-term power.
- Quick-release design for convenient charging.
- Official eufy product, ensuring perfect compatibility and performance.
- Environmentally friendly and cost-saving due to reusability.
- Cons:
- Exclusively for eufy smart locks, not August.
- Still requires periodic recharging.
User Impressions: Eufy smart lock owners consistently praise the convenience of the quick-release design and the long battery life provided by this official eufy battery. They appreciate the seamless compatibility and the peace of mind that comes with using a purpose-built power source for their security devices.
See it on Amazon here
What to Consider When Choosing Batteries for Your Smart Lock
When you’re trying to find the best battery for August Smart Lock (or any smart lock, for that matter), keep these factors in mind:
- Correct Type and Size: As we’ve seen, August locks can use either AA or CR123A. Always double-check your model’s requirements! Using the wrong type can damage your device.
- Battery Chemistry:
- Alkaline (AA): Common, affordable, good for basic use.
- Lithium (AA/CR123A): Offer longer life, better performance in extreme temperatures, and a longer shelf life. They are often the best battery for August Smart Lock Wi-Fi models due to their stability.
- Rechargeable: Great for long-term savings and environmental friendliness, but ensure they provide the correct voltage and that your lock is designed to handle them.
- Capacity (mAh): Higher milliamp-hour (mAh) ratings generally mean longer battery life between changes.
- Brand Reputation: Stick with reputable brands like Energizer for reliability. Generic batteries might be cheaper but can lead to inconsistent performance or shorter lifespans.
- Shelf Life: If you buy in bulk, a longer shelf life means they won’t lose charge while sitting in storage.
- Cost-Effectiveness: While lithium batteries might be pricier upfront, their longer life can make them more cost-effective over time. Rechargeables offer the best long-term savings.
- Environmental Impact: Rechargeable options are clearly better for the planet by reducing waste.
Frequently Asked Questions (FAQs)
Q1: How long do August Smart Lock batteries typically last?
A1: Battery life varies significantly based on your August Smart Lock model, usage frequency, and features enabled (like Auto-Unlock, Wi-Fi connectivity, DoorSense). Older August models using AA batteries might last 6-12 months. Newer August Wi-Fi Smart Locks using CR123A batteries can last anywhere from 3-6 months due to the increased power drain from constant Wi-Fi communication. High-quality lithium batteries tend to extend this life.
Q2: What type of batteries do August Smart Locks use?
A2: It depends on the model. Older August Smart Lock 3rd Generation models typically use four standard AA batteries. The newer August Wi-Fi Smart Lock (4th Generation) and Yale August locks often use two CR123A lithium batteries. Always check your specific model’s manual to confirm the correct battery type.
Q3: How do I know when my August Smart Lock battery is low?
A3: August Smart Locks are designed to notify you well in advance. You’ll usually receive notifications through the August or Yale Access app on your smartphone when the battery level is getting low. Some models also have an LED indicator on the lock itself that might flash or change color. Additionally, if connected to a smart assistant like Alexa, you might receive voice alerts.
Q4: Can I use rechargeable batteries in my August Smart Lock?
A4: For August locks that use AA batteries, you can use rechargeable AA batteries (NiMH). However, their voltage (typically 1.2V) is slightly lower than alkaline (1.5V), which might cause the lock to report a low battery status sooner or affect performance slightly. For CR123A, rechargeable versions are less common and might not be recommended unless specifically stated by August, due to potential voltage differences and safety concerns. Always proceed with caution and verify compatibility.
Q5: What happens if my August Smart Lock battery dies completely?
A5: Don’t panic! If your August Smart Lock batteries die, you won’t be locked out. Since August locks attach to the inside of your existing deadbolt, your original physical keys will still work from the outside. You can simply use your traditional key to enter your home and then replace the batteries from the inside.
Q6: Are all smart lock batteries the same?
A6: No, absolutely not. Smart locks use various battery types (AA, AAA, CR123A, custom rechargeable packs) and chemistries (alkaline, lithium, NiMH). It’s crucial to use the exact type and size specified by your smart lock manufacturer to ensure proper function, longevity, and safety. Using an incorrect battery can lead to device malfunction or even damage.
Q7: Any tips for extending August Smart Lock battery life?
A7: Yes! To maximize battery life:
* Use high-quality lithium batteries (if compatible).
* Ensure your Wi-Fi signal is strong at the door (for Wi-Fi models) to reduce connection efforts.
* Keep your August Smart Lock’s firmware updated.
* Avoid extreme temperature fluctuations, which can impact battery performance.
* If auto-unlock isn’t critical for you, you can disable it in the app, as frequent GPS polling and Bluetooth activity can consume more power.
Conclusion
Choosing the best battery for August Smart Lock isn’t just about picking any old cell; it’s about ensuring your smart home remains secure and convenient. While August Smart Locks themselves are stellar pieces of technology, their performance hinges on the quality of their power source. Whether you’re opting for long-lasting Energizer lithium batteries for your Wi-Fi model or considering a continuous AC power adapter for your AA-powered lock, making an informed choice will save you headaches down the line. Keep your August Smart Lock powered up, and enjoy the peace of mind it brings!