5 Best Rechargeable Batteries for Door Locks in October 2023

In the modern age of smart home technology, door locks have become more advanced and efficient than ever before. But to keep your smart door lock working seamlessly, you need a reliable power source. Rechargeable batteries offer a sustainable and cost-effective solution to power your door locks.

Best Rechargeable Batteries for Door Locks

Why Rechargeable Batteries for Door Locks?

Before we jump into the specifics, let’s understand why rechargeable batteries are the top choice for your door lock system.

1. Environmentally Friendly: Rechargeable batteries are a greener alternative to disposable ones. They reduce the waste generated by single-use batteries.

2. Cost-Effective: While rechargeable batteries may have a higher initial cost, they are more economical in the long run. You won’t need to keep purchasing new batteries regularly.

3. Reliable Power: Rechargeable batteries are known for their consistent power output. This reliability is essential for the security of your home.

4. Convenience: The convenience of recharging batteries as needed means you won’t find yourself locked out due to dead batteries.

Now that we understand why rechargeable batteries are a great choice, let’s explore the best options available.

Related: The 5 Best Budget Smart Locks Under $50

5 Best Rechargeable Batteries for Door Locks

We’ve compiled a list of the 5 best rechargeable batteries for door locks to help you make the right choice.

1. Eneloop Pro AA Rechargeable Batteries


Best Rechargeable Batteries for Door Locks

Panasonic BK-3HCCA8BA eneloop pro

Eneloop Pro batteries are a popular choice for powering smart door locks. They offer:

  • High Capacity
  • Low self-discharge rate
  • Exceptional longevity

These batteries are a reliable choice for ensuring your door lock functions consistently.

Versatility for Your Devices

Eneloop AA rechargeable batteries are incredibly versatile. They can be used in Door Locks and a wide range of household devices, including:

  • Remote Controls: Keep your TV, air conditioner, or garage door opener powered with confidence.
  • Flashlights: Never worry about your flashlight dying in an emergency situation.
  • Toys: Let your kids enjoy their favorite toys without interruption.
  • Wireless Computer Devices: Keep your wireless keyboard and mouse running smoothly.
  • RC Cars: Satisfy your need for speed with reliable power for your remote-controlled cars.
  • Digital Camera Flash Units: Ensure you capture every moment with a fully charged camera flash.
  • Game Controllers: Gamers can enjoy uninterrupted gameplay.

Eneloop AA rechargeable batteries have proven their mettle in countless household devices, earning a solid reputation among users.

Best Rechargeable Batteries for Door Locks

2. Energizer Recharge Universal Batteries

Best Rechargeable Batteries for Door Locks

Energizer Recharge Universal batteries are known for their:

  • Wide compatibility
  • Quick charge capability
  • Durability

These batteries are versatile and are suitable for various door lock models.

Best Rechargeable Batteries for Door Locks

3. AmazonBasics High-Capacity Rechargeable Batteries

Best Rechargeable Batteries for Door Locks

AmazonBasics offers a cost-effective solution with their high-capacity rechargeable batteries, which provide:

  • Reliable performance
  • Budget-friendly option
  • Good charge retention

These batteries are an excellent choice if you’re looking for an affordable yet efficient solution.Best Rechargeable Batteries for Door Locks

4. Panasonic Eneloop AA Batteries

Best Rechargeable Batteries for Door Locks

Panasonic’s Eneloop AA batteries are a favorite among consumers for their:

  • Exceptional charge retention
  • High cycle life
  • Consistent power delivery

For a top-tier choice for your door lock, these batteries are hard to beat.Best Rechargeable Batteries for Door Locks

5. Duracell Rechargeable AA Batteries

Best Rechargeable Batteries for Door Locks

Duracell, a household name in the battery industry, offers:

  • Long-lasting power
  • High-quality manufacturing
  • Consistency in performance

Duracell rechargeable batteries are a trusted option to power your smart door lock.

Best Rechargeable Batteries for Door Locks

How to Choose the Right Rechargeable Battery

Selecting the right rechargeable battery for your door lock involves considering a few essential factors.

1. Battery Type: Ensure you choose the right battery type that your door lock system requires. Commonly, door locks use AA or AAA batteries.

2. Capacity: Look for batteries with a high capacity, as they will last longer between charges.

3. Brand Reputation: Opt for reputable brands known for their quality and durability.

4. Self-Discharge Rate: Low self-discharge batteries are preferable as they hold their charge over time.

5. Compatibility: Ensure that the battery is compatible with your specific door lock model.

Maintaining Your Rechargeable Batteries

To make the most of your rechargeable batteries, follow these maintenance tips:

  • Charge them before they deplete completely.
  • Use a quality battery charger to prevent overcharging.
  • Store them in a cool, dry place.
  • Label and organize your batteries to keep track of their age.


In conclusion, choosing the best rechargeable batteries for your door lock system is essential to ensure the security of your smart home. Whether you prioritize capacity, quick charging, or a budget-friendly option, there’s a rechargeable battery out there to meet your needs. By considering factors like battery type, capacity, brand reputation, self-discharge rate, and compatibility, you can make an informed decision.

Investing in high-quality rechargeable batteries is not just a smart choice for your door lock but also a sustainable one. It’s a small step toward a greener, more reliable, and cost-effective future for your smart home security. So, make the switch to rechargeable batteries and enjoy the peace of mind that comes with uninterrupted access to your home.


FAQs about Using Rechargeable Batteries for Door Locks

1. Can I use rechargeable batteries for my door lock?

  • Yes, you can use rechargeable batteries for your door lock. However, it’s important to choose the right type and ensure they are compatible with your specific lock model.

2. Which type of rechargeable battery is best for a door lock?

  • The best type of rechargeable battery for a door lock is usually nickel-metal hydride (NiMH) or lithium-ion (Li-ion) batteries. These types are known for their stable performance and longer-lasting charge.

3. Which brand of rechargeable battery lasts the longest in a door lock?

  • The longevity of rechargeable batteries depends on various factors, including the brand, capacity, and usage. Brands like Eneloop (Panasonic), EBL, and Duracell are known for producing high-quality rechargeable batteries that tend to last longer in most applications, including door locks.

4. Which rechargeable batteries hold the longest charge in a door lock?

  • Batteries with a higher mAh (milliampere-hour) rating tend to hold a charge longer. For door locks, rechargeable batteries with a higher mAh will generally last longer between charges.

5. How long do batteries typically last in a door lock with regular use?

  • The lifespan of batteries in a door lock can vary depending on the type of lock, usage frequency, and battery capacity. In general, rechargeable batteries can last from a few weeks to several months before needing recharging, while non-rechargeable alkaline batteries may last up to a year or more.

6. How long do AA batteries typically last in a door lock?

  • The lifespan of AA batteries in a door lock also depends on the same factors mentioned above. Non-rechargeable AA batteries typically last longer than rechargeable ones, often up to a year or more with regular use.

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