Best 9V Batteries of 2025

Bonnie Salem Avatar
Bonnie Salem
Last Updated: Jan 15, 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

9V batteries are a type of alkaline battery that are commonly used in devices that require a higher voltage than traditional AA or AAA batteries. These batteries are often used in smoke detectors, remote controls, and other small electronic devices. They are known for their long-lasting power and reliability, making them a popular choice for both personal and professional use. 9V batteries are also easy to find and replace, making them a convenient option for anyone in need of a reliable power source.

At a Glance: Our Top Picks

Energizer MAX 9V Alkaline Batteries Cover #TOP 1
Energizer MAX 9V Alkaline Batteries
ftb score rating icon 9.8
Duracell Coppertop 9V Battery Cover #TOP 2
Duracell Coppertop 9V Battery
ftb score rating icon 9.7
Energizer MAX 9V Alkaline Batteries (4 Pack) Cover #TOP 3
Energizer MAX 9V Alkaline Batteries (4 Pack)
ftb score rating icon 9.5

Top 10 9V Batteries

Energizer MAX 9V Alkaline Batteries

522BP4
Multicolor
Energizer MAX 9V Alkaline Batteries Cover
Energizer MAX 9V Batteries (4 Pack), 9 Volt Alkaline Batteries - Packaging May Vary

Energizer MAX 9V Alkaline Batteries are a reliable and cost-effective choice for powering everyday devices. This 4-pack of 9V batteries provides long-lasting power and protection, and is designed to last up to 5 years in storage. Customers have praised the batteries for their dependability and value, with many reporting that they last for weeks of daily, constant use.

What We Like
Long-lasting performance
Great for smoke alarms
Good value for price
Reliable brand quality
Easy packaging
What We Don't Like
Packing seemed old
#TOP 2

Duracell Coppertop 9V Battery

MN1604B4
Black
4 Count (Pack of 1)
Duracell Coppertop 9V Battery Cover
Duracell Coppertop 9V Battery, 4 Count Pack, 9-Volt Battery with Long-lasting Power, All-Purpose Alkaline 9V Battery for Household and Office Devices

Duracell Coppertop 9V Battery is a reliable and long-lasting alkaline battery designed for dependability. It is a general-purpose battery that can be used for everyday devices such as toys, remote controls, flashlights, clocks, radios, and portable electronics. Duracell guarantees each Coppertop 9-Volt alkaline battery to last 5 years in storage. Customers have praised the product for its value, quality, and long-lasting power.

What We Like
Long-lasting performance
Reliable for various devices
Good for extreme weather
Cost-effective option
What We Don't Like
Power loss if stored too long
#TOP 3

Energizer MAX 9V Alkaline Batteries (4 Pack)

9V Batteries,
Multicolor
Energizer MAX 9V Alkaline Batteries (4 Pack) Cover
Energizer MAX 9V Batteries (4 Pack), 9 Volt Alkaline Batteries

Energizer MAX 9V Alkaline Batteries (4 Pack) provide long-lasting power for everyday devices such as smoke detectors, safety devices, hand-held meters, and toys. These batteries hold power for up to 5 years in storage and are made to last without leaking. Energizer MAX 9V batteries are also available in other sizes and include up to 4% recycled materials.

What We Like
Long-lasting performance
Convenient online ordering
Good value for money
Reliable for smoke detectors
What We Don't Like
Mixed country of origin information
#TOP 4

Voniko 9V Alkaline Batteries

6LR61
4 Count (Pack of 1)
Voniko 9V Alkaline Batteries Cover
Voniko 9V Batteries - Alkaline 9V Battery 4 Pack - Ultra Long Lasting with a 7 - Year Shelf Life

Voniko 9V Batteries are modern alkaline batteries designed for the digital age. They are 6-9 times better than traditional carbon batteries, environmentally conscious, and come with a 7-year shelf life. They are perfect for digital cameras, remote/game controllers, wireless keyboards and mice, alarm clocks, radios, shavers, and electronic toys. The double layer internal structure and stainless steel cover make them 100% leakproof. Customers have praised the product for its excellent packaging, long-lasting power, and reasonable price.

What We Like
Affordable price
Long shelf life
Reliable performance
Good for smoke detectors
Easy installation
What We Don't Like
Occasional price fluctuations
#TOP 5

PKCELL 9V Battery Carbon (10 Count)

4330205932
10- Count
PKCELL 9V Battery Carbon (10 Count) Cover
PKCELL 9V Battery Carbon Zinc for Smoke Detectors 6F22 Battery,Ultra Long-Lasting

PKCELL 9V 6F22 Batteries offer powerful and reliable energy, with a 10-year shelf life and a long service life, meaning they need to be changed less frequently. These batteries are safe to use, containing no harmful chemicals and double-sealed for safety and leakage. They are suitable for a range of devices, including smoke alarms and transistor radios, and can hold power for up to 3 years. PKCELL also provides excellent after-sales service.

What We Like
Great value for the price
Reliable performance in smoke detectors
Long shelf life
Convenient individual wrapping
Good for bulk purchases
What We Don't Like
Shorter lifespan than name brands
May require frequent replacements
#TOP 6

Energizer 9V Batteries (8 Pack)

ZX-55
Multicolor
8 Count (Pack of 1)
Energizer 9V Batteries (8 Pack) Cover
Energizer Alkaline Power 9 Volt Batteries (8 Pack), Long-Lasting Alkaline 9V Batteries

Energizer 9 Volt Batteries are an 8-pack of long-lasting alkaline power batteries that provide reliable power for everyday use and emergency situations. These 9V batteries are ideal for powering smoke detectors, radios, clocks, and handheld meters and can last up to 5 years in storage. Customers have praised the batteries for their durability and value, and trust the Energizer brand for reliable power and performance in any situation.

What We Like
Long-lasting performance
Better pricing than local stores
Useful for multiple devices
Convenient online purchasing
Good quantity for the price
What We Don't Like
Packaging may be outdated
#TOP 7

DURNERGY 9V Alkaline Batteries

9V Batteries 8 Pack
8 Count (Pack of 1)
DURNERGY 9V Alkaline Batteries Cover
DURNERGY 9V Batteries, 9 Volt Batteries 8 Pack,10-Year Shelf Life, 9V Batteries for Smoke Alarms, Guitar Pedals, Microphone, Smoke Detector Battery, Square Batteries 6LR61 9V Alkaline Batteries

The DURNERGY 9V Batteries offer exceptional performance with a lifespan that outlasts standard carbon batteries by six to eight times. This means you can rely on them for critical devices like smoke detectors and alarms without frequent replacements. They are designed to be safe and leak-proof, ensuring that you won’t have to worry about battery leaks during use or transport. Additionally, these batteries are versatile, suitable for various devices such as guitar pedals and garage door openers. Lastly, they are environmentally friendly, free from harmful metals, making them a responsible choice for your household.

What We Like
Good value for the money
Long shelf life
Prompt delivery
No leaking issues
Individually wrapped batteries
What We Don't Like
Not used yet
#TOP 8

Duracell Coppertop 9V Battery, 6 Count Pack

6 Count (Pack of 1)
Duracell Coppertop 9V Battery, 6 Count Pack Cover
Duracell Coppertop 9V Battery, 6 Count Pack, 9 Volt Battery with Long-lasting Power, All-Purpose Alkaline 9V Battery for Household and Office Devices

Duracell Coppertop 9V battery is a reliable and long-lasting power source for various electronic devices. These alkaline batteries are designed for dependability and can power everyday devices like toys, remote controls, flashlights, clocks, radios, and portable electronics. Additionally, Duracell guarantees that each Coppertop 9V alkaline battery will last 5 years in storage. As a trusted battery brand, Duracell assures quality and guarantees its products against defects in material and workmanship.

What We Like
Long-lasting performance
Good value for money
Reliable and durable
Available in bulk
Iconic copper top design
What We Don't Like
Delivery longer than expected

Amazon Basics 9V Lithium Batteries

Amazon Basics
CR9V-2PK
2 Count (Pack of 1)
Amazon Basics 9V Lithium Batteries Cover
Amazon Basics 2-Pack 9 Volt High-Performance Lithium Batteries, 10-Year Shelf Life, Long Lasting Power

Introducing the Amazon Basics Lithium Batteries, a 2-pack of high-performance 9-volt batteries designed to provide long-lasting power. These batteries are perfect for a wide range of devices including digital cameras, handheld games, smart home devices, and outdoor surveillance systems. With a shelf life of up to 10 years, you can store these batteries for later use or use them right away. They are suitable for both indoor and outdoor use and can perform in extreme temperatures, ranging from -40° F to 140° F. The easy-to-open packaging ensures convenient use and storage. Please note that these batteries are not rechargeable. Experience reliable and consistent power with the Amazon Basics Lithium Batteries.

What We Like
Long-lasting performance
10-year shelf life
Cost-effective solution
Reliable in extreme conditions
High energy density
What We Don't Like
Internal resistance could be improved
May not provide warning before failure
#TOP 10

Energizer Max 9V Batteries

522-8
Silver/black
8 Count (Pack of 1)
Energizer Max 9V Batteries Cover
Energizer 9V Batteries, Max 9 Volt Battery Premium Alkaline, 8 Count

Energizer Max 9V batteries are designed to power your everyday devices, such as toys, flashlights, clocks, and remotes. With a pack of eight, you’ll have plenty of batteries on hand for all your needs. These alkaline batteries can hold their charge for up to five years in storage, ensuring you’re never caught without power when you need it most. Coming from the makers of the longest-lasting AA battery, they promise reliable performance. Plus, they are compatible with Amazon's Dash Smart Shelf, making it easy to keep your supply stocked without any hassle.

What We Like
Individually packaged batteries
Long shelf life (5 years)
Fast delivery
Reliable performance
Good pricing
What We Don't Like
Possible loss of charge
Buying Guide Image

A Guide to Selecting 9V Batteries

Batteries are an essential source of power for us. From car batteries to our torchlight batteries, we can't just underestimate their usefulness. 9V batteries are very high in demand because of the number of equipment that they can power. Typically, they are rectangular and were first made use of in transistor radios. That is why most manufacturers still refer to them as transistor batteries.

This guide helps you in making the right choice of a 9v battery.

Factors to consider before buying a 9V battery

Types: 9V batteries are basically of two types. They are the rechargeable 9V batteries and the primary 9V batteries.

  • Rechargeable 9V batteries: The rechargeable batteries are the ones that can be recharged. They come in two sizes; PP9 and PP3. Normally, in their packaging, the type of charger to use in recharging it is also included. This category of 9V batteries is mostly sold in bulk. There are different brands available, and you can pick any of them as your best rechargeable 9V battery.
  • Primary 9V batteries: The primary 9V batteries are not rechargeable. This means that once it gets depleted, it is thrown away. They are two main types; alkaline 9v batteries and lithium 9v batteries. Also, they are used in many appliances like the hand torch. They are mostly sold as single pieces or in packs.

Application:9V batteries are best used for household electronics. Do not consider purchasing them if you want to use them in large household gadgets or appliances.

Brand: If you are a brand person, you should also consider the brand you love before purchasing a 9V battery. 9v battery brands include Duracell, Energizer, Voniko, and lots more.

Lithium vs. Alkaline: These are the two major 'ingredients used in the production of 9V batteries. Lithium batteries are generally rated higher in performance because of their lower power loss and self-discharge. Also, alkaline batteries have a higher chance of releasing corrosive liquid as they age. There are different battery types which can be your best lithium 9v battery or best alkaline 9v battery.

Benefits of 9V batteries

Compatibility: 9V batteries can be used on many household gadgets. This includes fire alarms, clocks, torches, and other household electronics. This makes them compatible for use with many household systems.

Backup: 9V batteries can be used as a backup to power household appliances that are majorly powered by electricity. This gives you more usage of the device and helps you not to be stranded.

Frequently Asked Questions (FAQs)

When can a 9V battery be considered depleted?

By sight, once the battery is no longer functioning as normal, it can be considered to be depleted. However, electrically, if the battery's voltage for a device such as smoke alarms falls below 6V, then it can be considered to be depleted.

Frequently Asked Questions (FAQs)

1. Are all 9 volt batteries the same?

No, while 9 volt batteries generally have similar sizes, they can vary slightly. The typical size range is between 48mm x 25mm x 15mm and 48.5mm x 26.5mm x 17.5mm. Larger batteries may have more energy capacity, but they may not fit all devices.

2. Why are 9 volt batteries hard to find?

Finding 9 volt batteries can be challenging because battery makers face limitations in creating batteries with more than 1.5 volts. This scarcity of higher voltage batteries contributes to the relative scarcity of 9 volt batteries.

3. Can I use any 9V battery for a smoke alarm?

Most smoke alarms now use lithium-ion batteries instead of traditional 9-volt batteries. However, some smoke alarms, particularly ionization models, can still use regular 9-volt batteries. It is important to check your specific smoke alarm's requirements before using any battery.

4. What can I use in place of a 9-volt battery?

There are several equivalents for a 9-volt battery, including 6LR61, 6AM6, Duracell MN1604, Rayovac A1604, Energizer 522, Varta 4922, MX2400, 1604A, Radio Battery, Smoke Alarm, 9V Block, Krona, and PP3. These alternatives can be used as substitutes for a 9-volt battery in compatible devices.

5. Can I use a regular 9-volt battery in my smoke detector?

Most smoke alarms now use lithium-ion batteries instead of traditional 9-volt batteries. Therefore, it is generally not advisable to use a regular 9-volt battery in a smoke detector. However, some smoke alarms, such as ionization models, may still be compatible with regular 9-volt batteries. Always refer to the specific requirements of your smoke detector.

6. How long do 9V batteries last in hard-wired smoke detectors?

For hard-wired smoke detectors that use 9-volt batteries, it is recommended to replace the batteries once every year or so. After approximately 8 years, it is advisable to consider replacing the entire smoke detector to ensure optimal performance and safety.

Editor's Notes

During our 9v battery research, we found 27 9v battery products and shortlisted 10 quality products. We collected and analyzed 501,133 customer reviews through our big data system to write the 9v batteries list. We found that most customers choose 9v batteries with an average price of $15.21.

The 9v batteries are available for purchase. We have researched hundreds of brands and picked the top brands of 9v batteries, including Energizer, DURACELL, Voniko, PKCELL, DURNERGY. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Bonnie Salem Avatar

Bonnie Salem is a stay-at-home mother with two-year-old twins and has spent almost half of her life surrounded by baby products. As a mother and a professional copywriter, she has an insightful and unique eye for researching products suitable for infants. Bonnie Salem is an expert in health and nutrition who lives with her family in New Jersey. She has over 15 years of working experience in an institute of medicine after graduating from the University of Toronto. She is highly interested in personal health and wellness.

9V Batteries Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
#TOP7
#TOP8
#TOP9
#TOP10
Brand Energizer DURACELL Energizer Voniko PKCELL Energizer DURNERGY DURACELL Amazon Basics Energizer
Number of Batteries 4 9V batteries required. (included) 4 9V batteries required. (included) 4 Product Specific batteries required. (included) 4 9V batteries required. (included) 10 9V batteries required. 8 AAA batteries required. (included) 8 9V batteries required. (included) 6 9V batteries required. (included) 1 Lithium Metal batteries required. (included) 8 9V batteries required. (included)
Battery Cell Composition Alkaline Alkaline Alkaline Alkaline Zinc Carbon Alkaline Alkaline Alkaline Lithium Alkaline
Recommended Uses For Product Drone Clock, Radio, Remote Controls,Calculators, Flashlights, Wireless Keyboard, Wireless Mouse. Household Use Indoor/Outdoor Radio Household Use smoke alarms Fire Alarm, Radio, Clock Camera Camera, Toys, Flashlight, Clock, Remote, Smoke Detector
Batteries 4 9V batteries required. (included) 4 9V batteries required. (included) - 4 9V batteries required. (included) 10 9V batteries required. 8 AAA batteries required. (included) 8 9V batteries required. (included) - 1 Lithium Metal batteries required. (included) 8 9V batteries required. (included)
Unit Count 4.0 Count - - 4.0 Count 10.00 Count - 8.0 Count - 2.0 Count -
Item Weight - 7 ounces - - 12.6 ounces - 12.3 ounces - 1.44 ounces 12.6 ounces
Compatible Phone Models - Any instruments that need alkaline 9V batteries Remote - - Clock - Any equipment that needs alkaline 9V batteries - Clock
FTB Score
ftb score rating icon 9.8
ftb score rating icon 9.7
ftb score rating icon 9.5
ftb score rating icon 9.5
ftb score rating icon 9.5
ftb score rating icon 9.4
ftb score rating icon 9.2
ftb score rating icon 9.0
ftb score rating icon 9.0
ftb score rating icon 8.8
Where to Buy