How Do Smart Locks Get Power? The Secrets of Smart Lock Power Sources

As the digital age evolves, the security landscape is undergoing a transformative shift, with smart locks becoming an integral part of modern homes. These innovative locks offer convenience, enhanced security, and remote access control. Behind their sleek designs and advanced features lies a crucial factor that keeps them operational: Do smart locks need power? How are smart locks powered?

In this article, we'll delve into the intriguing world of smart lock power sources, exploring how these intelligent devices stay powered up to safeguard our homes and ease our lives.

How Do Smart Locks Get Power?

Smart locks come in various types, each with its own set of features and power requirements. Understanding how smart locks are powered and work is crucial for reliable operation. Here's an overview of different smart lock types and their power sources.

Battery-Powered Smart Locks

Features: Battery-powered smart locks are typically powered by standard AA or AAA alkaline batteries, which need to be replaced periodically to power their internal circuitry and motor for locking and unlocking. When the battery runs low, most models alert the user via a smartphone app or a low-battery indicator on the lock itself.

Lifespan: Typically, 6 months to 1 year before a battery change, depending on usage and battery quality.

Rechargeable Smart Locks

Features: Rechargeable smart locks use built-in rechargeable lithium-ion batteries, which can be charged via a USB cable or other ways. These digital locks offer the advantage of not requiring frequent battery replacements. Similarly, you can see the indicator lighting or flashing or get alerts via the smartphone app once the battery is low and needs a recharge.

Lifespan: Rechargeable batteries can last between 6 months and a year before the next recharging.

Hardwired Smart Locks

Features: Hardwired smart locks are powered by your home’s electrical system. They are connected to existing electrical wiring, drawing stable and reliable low-voltage power through a transformer. Installing a hardwired smart door lock may require drilling, running cable, and professional help. However, if your home has electricity, the continuous power supply means you never have to worry about battery life.

Lifespan: Hardwired locks can potentially last for 10 years or more depending on the the system quality.

Solar-Powered Smart Locks

Features: Solar-powered smart locks use integrated solar panels to capture sunlight and convert it into electrical energy. This energy is often stored in internal rechargeable batteries to power the lock during cloudy days or at night. These locks are designed to operate for extended periods without requiring battery replacement.

Lifespan: The batteries can last 9 months or more on a single charge, while solar smart locks can last 5 to 7 years depending on the quality of solar cells and weather exposure.

Kinetic Energy-Powered Smart Locks

Features: Kinetic energy-powered smart locks harness energy generated by physical motion, such as pressing a button or turning the handle. The lock uses piezoelectric materials or generators to convert motion into electrical energy, which powers the device. These locks are self-sustaining and do not require external power sources like batteries or electricity.

Lifespan: Kinetic smart locks can typically last 5-10 years as long as the kinetic mechanisms remain intact and functional.

Power Harvesting Smart Locks

Features: Power harvesting smart locks gather ambient energy from various sources like Wi-Fi signals, light, heat, or vibrations. This energy is stored in internal capacitors or batteries to power the lock. These locks are eco-friendly and efficient for low-energy tasks, reducing reliance on conventional power sources.

Lifespan: Around 5 to 10 years, depending on how well it can continue to harvest energy over time.

Hybrid Smart Locks

Features: Hybrid smart locks combine multiple power sources to ensure reliability. For example, they may use a battery as the primary source and supplement it with solar panels or kinetic energy harvesting to ensure continuous operation, maximizing uptime and reducing the likelihood of failure.

Lifespan: The battery life can vary from 6 months to a year, while the smart lock can last typically 7-10 years due to the backup power options.

Comparison of Different Smart Lock Power Sources

For better understanding, we listed a comparison of these types of smart locks to help you choose the right power source for your best smart lock.

What to Do if the Smart Lock Battery Drains?

Your smart lock battery can drain whatever types of smart locks you choose, so it’s essential to stay prepared and know how to handle the situation. Here are some helpful tips and measures.

Restore Power for Hardwired Locks: If your smart lock is hardwired into your home’s electrical system, check the power source or circuit breaker. A power outage or disruption could be the cause of the issue. Restoring power may resolve the problem.

Emergency Key Access: Most smart locks come with a physical key backup. Use the key to manually unlock the door and gain access to your property. Keep a backup key in a safe place or give trusted family members access.

Mobile App or Backup Codes: If your smart keyless lock is integrated with a mobile app, you may be able to unlock it using the app. Additionally, some locks provide backup codes that can be entered on the keypad.

Recharge or Replace the Battery: If your smart keypad lock uses rechargeable batteries, plug it into a USB charger or charging station. For non-rechargeable models, replace the batteries promptly with fresh ones, preferably with a high-quality brand to ensure better longevity.

External Power Source: Some smart locks offer an emergency external power source option. Connect a portable power bank or external battery to the lock's backup power terminals to provide temporary power and access.

Manufacturer Support: If none of the above options work or if you're unsure, contact the smart lock's manufacturer or customer support for assistance. They can provide guidance or troubleshooting steps tailored to your specific lock model.

Call a Locksmith: If you're unable to resolve the issue yourself or if the lock is malfunctioning despite replacing the battery or restoring power, it may be time to call a professional locksmith for assistance.

To avoid future battery drain issues, regularly check the battery level through the app or keypad. Replace batteries when they're low and keep spare batteries handy.

Is There a Smart Lock Without Changing Batteries Frequently?

Video Smart Lock S330: Equipped with a 10000mAh Rechargeable Lithium-ion rechargeable Battery, this smart lock works for one full year with a charge. You'll get a low-battery notification when the battery of the smart lock is under 10%. Even if the battery dies, you can charge it via the USB port. Meanwhile, 2 manual keys are available to unlock the door.

Video Smart Lock E330: Featuring a large 10,000 mAh rechargeable battery, this easy-to-install smart lock ensures stable power without constant battery changes or recharging. Smart low-battery alerts and 5 easy ways to unlock (key, fingerprint, facial recognition, PIN code, app control) allow you to enjoy an efficient, long-lasting, and hassle-free experience.

Conclusion

Now you know how smart door locks are powered and what you can do when your smart lock's battery drains. Remember that keypad smart locks are designed to provide both security and convenience and selecting the appropriate power source is a crucial part of ensuring their consistent performance. So, whether you're considering a new smart lock installation or troubleshooting an existing one, making informed choices about power sources will help you enjoy the benefits of smart security technology to the fullest.

FAQs

Do smart locks need power?

Yes, smart locks require power to function. They rely on either batteries or a hardwired electrical connection to operate electronic locking mechanisms, keypads, Wi-Fi/Bluetooth connectivity and sensors for unlocking remotely, authentication, and monitoring, ensuring the lock's best performance and reliability.

How to change batteries on smart door locks?

To change the batteries on a smart door lock:

Locate the battery compartment: Often at the back or underside of the lock.

Remove the cover: Use a screwdriver if necessary.

Remove old batteries: Take out the depleted batteries, noting the orientation.

Insert new batteries: Place fresh batteries in the correct position.

Replace the cover: Secure the compartment back in place.

Test the lock: Ensure it's functioning correctly.

Make sure to use compatible, high-quality batteries for optimal performance.

Why does my digital lock battery drain so fast?

A digital lock battery may drain quickly due to several factors, such as frequent use, weak or low-quality batteries, excessive standby time, or environmental conditions like temperature extremes. Additionally, if the lock has additional features like Wi-Fi or Bluetooth, it may consume more power. Regular battery maintenance or energy-saving modes can help extend battery life.

How long should batteries last in my door lock?

Batteries in a smart door lock typically last between 6 months to a year, depending on usage frequency, battery type, and lock model. Locks with features like Wi-Fi or video may drain batteries faster. Choose wired smart locks or hybrid locks with a large-capacity rechargeable battery to ensure long-lasting performance.

Do solar-powered locks work in low-light or shaded areas?

Yes, solar-powered door locks can work in low-light or shaded areas, but their efficiency may be reduced. These locks rely on sunlight to charge their battery, so limited exposure to direct sunlight can lead to slower charging and potentially shorter operational time. Using them with an integrated rechargeable battery improves performance.