Reviews

Best Batteries: Efficiently Power Up Your Devices

The best batteries for all of your various power needs.

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BY Heather Fishel / LAST UPDATED ON March 1, 2021

Batteries are a must-have in any household. Whether you keep a supply of different batteries in your toolbox or store a stash in your garage, batteries are something you always need — and something you’re always running out of. So many different items rely on batteries to function, from fun toys to functional flashlights to tools, electronic gadgets, and more. Even your car key fob relies on a battery to work properly.

 

When these batteries die, you need to be ready with replacements ASAP, which is why it’s a good idea to have a selection of batteries in different sizes at your disposal. Batteries come in many different shapes, sizes, and formats, but there’s one that you always want to make sure of: that you’ve bought quality batteries that’ll last. With durability, value, and longevity in mind, take a look at our picks for the best batteries below.

Best Overall
Duracell CopperTop AA Alkaline Batteries
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Summary
Summary

A highly useful, very versatile AA battery that’ll power your essentials and offer great durability.

Pros
Pros
  • Long-lasting performance in all kinds of items
  • Great for household essentials
  • Guaranteed against defects
Cons
Cons
  • Some batches may be less durable than others
Best Overall
Duracell CopperTop AA Alkaline Batteries
Best Value
Skoanbe Button Coin Cell Batteries
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Summary
Summary

Affordably priced compact cell batteries made with high-quality materials.

Pros
Pros
  • Economical
  • Great for small items that need more specialized batteries
  • Good voltage
Cons
Cons
  • Quality can be inconsistent from batch to batch
Best Value
Skoanbe Button Coin Cell Batteries
Honorable Mention
Energizer Max AA & AAA Batteries Combo Pack
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Summary
Summary

A wealth of the most commonly used batteries with great power and longevity.

Pros
Pros
  • Leak-resistant design and materials
  • Long-lasting in all kinds of devices
  • A great choice for items used daily
Cons
Cons
  • Only two battery sizes included
Honorable Mention
Energizer Max AA & AAA Batteries Combo Pack
Best Batteries
Amazon

Why Trust Us


All of our reviews are based on market research, expert input, or practical experience with most products we include. This way, we offer genuine, accurate guides to help you find the best picks.

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Benefits of Batteries

  • Quick, easy power. Quality batteries allow you to power up devices in no time at all — and with little effort. You can simply swap out old, depleted batteries for new ones, restoring a full “charge” to any battery-powered item in just seconds. Many products even use the same size batteries, like AA or AAA, which makes batteries even simpler. 
  • Versatility. With a stockpile of common batteries in various sizes, you’ll have excellent versatility. A single battery type or size, like a coin or cell battery, can be used in a wide selection of different products. Many products rely on the same batteries, which means you’ll easily be able to adapt. 
  • Simplicity. Batteries are undeniably simple and straightforward. They’re so easy to use that you can literally “plug and play”, inserting them to get immediate power. All you need is the right size for the item in need of power, and you can put it to use within just seconds.

Types of Batteries

Primary Cell Batteries

Primary cell batteries are the most common kind of battery you’ll come across. Also called non-rechargeable batteries, these batteries are galvanic cells that are designed to be used once, then discarded when the power is depleted. These single-use batteries come in many different sizes, including the common AA, AAA, C, and D sizes, and are made from different materials. They can power a wide array of different gadgets, toys, tools, and more.

Secondary Cell Batteries

Secondary cell batteries are an alternative to primary cell batteries. They’re essentially the complete opposite: a secondary cell battery is rechargeable. These batteries can be discharged, or use up all of their available power, and they can then be recharged back to full power. Secondary cell batteries are more economical, as they can be recharged and reused many, many times. Like primary cell batteries, they come in many different sizes and are a great choice for items that use up batteries quickly.

Specific Application Batteries

Specific application batteries, which go by several different specialized names, are batteries that have one specific use. These batteries include automotive batteries, wet cell batteries, Zamboni batteries, and biobatteries. They’re less commonly used and come in many different sizes, capacities, and designs. Each specific application battery is designed solely for certain tasks. 

Top Brands

Duracell

Duracell is one of the best-known and most respected names in batteries. Since its founding in 1924, this brand has been a go-to for anyone who needs common batteries, with products like Duracell CopperTop AA Alkaline Batteries and Duracell CopperTop AAA Alkaline Batteries stepping in to deliver lasting power and great performance.   

Energizer

With a history of innovation and ever-improving products, Energizer is another one of the best-known names in batteries. Founded with a single dry cell battery in 1896 that was just for consumers, Energizer rapidly became a household name. Now, products like the Energizer Max AA & AAA Batteries Combo Pack and the Energizer Rechargeable AA and AAA Batteries with Charger are standouts. 

Rayovac

Originally founded in 1906 under the name the French Battery Company, Rayovac has a long history in batteries alone. In the years since, the brand has changed and merged with others. However, the Rayovac name and its storied products, like Rayovac Alkaline D Cell Batteries, are still favorites among those looking for household or everyday batteries. 

Batteries Pricing

  • Under $10: Many batteries — especially those in smaller sizes or packs — will cost you less than $10 per purchase. Lesser-known brands and very common battery sizes, like AA and AAA batteries, tend to fall into this price range.
  • $10 to $30: If you’d like to buy your batteries in bulk or want to opt for bigger, better name brands, new batteries will likely cost between $10 and $30. You can also find mixed packs that include different battery types and sizes, as well as rechargeable batteries, within this range.

Key Features

High Energy Density

Batteries that have a high energy density can offer more potential energy and be more powerful. Energy density is the potential energy inside a battery compared to the weight of the battery. Small batteries with high energy density will pack a punch, performing with high energy and potential. Low energy density means batteries are physically bigger and heavier, and they have less available power in total. Higher energy density can result in better overall performance. 

Many Applications and Uses

The more versatile a battery is, the more uses it offers. If you choose a battery that can be used in many different applications, you’ll get more value and capability. Some batteries are more widely used — like AA and AAA batteries — while others have more limited applications and use. Stocking up on the types of batteries that have the highest number of applications will ensure you likely always have just what you need.

High Power Density

Like energy density, power density is an important metric for a battery’s performance. A battery’s power density is essentially its current availability — so a higher power density means the battery can sustain high current draws for larger, longer periods. Essentially, higher power density is another factor that can make a battery perform better with just the right amount of power. 

Other Considerations

  • Rechargeable Batteries Offer More Bang for Your Buck. One of the biggest frustrations of using batteries is how many you’ll go through as they quickly become depleted. Instead of buying brand-new batteries every time you’re in need, consider opting for rechargeable batteries. It’ll save you money in the long run, provide better value per use, and can lessen your overall impact on the environment as you keep a single battery for longer.
  • Value Packs or Bundles Are Great Buys. Wondering whether you should buy small packs of batteries or spend more to get more batteries? It’s usually a better idea to opt for more, as batteries are typically cheaper when there’s more to a pack. Buying in bulk — even smaller bulk packages — can help you spend less and save more, and you’ll ensure you always have batteries on hand.
  • Variety is Best for Your Toolbox. To be prepared and have all of your potential battery needs covered, it’s a good idea to have a supply of many different kinds. You can start by buying a variety of the most common kinds of batteries; think AAA, AA, C, D, and coin or cell batteries. If you use flashlights or other tools that rely on more specialized batteries, consider stocking up on those too. 

Best Batteries Reviews & Recommendations 2021

Best Overall
Duracell CopperTop AAA Alkaline Batteries

Duracell CopperTop AA Alkaline Batteries are one of the best battery packs you can buy. Most people need a supply of AAA batteries, and this set of 9-volt alkaline AAA batteries is a fantastic choice. These batteries can power all kinds of items, from remotes to toys to tools and much more. They offer long-lasting power, with a design that provides you with consistent battery performance over the long term. The batteries are even guaranteed for up to 10 years in storage, so you can depend on them for a whole decade even if you aren’t using them. They won’t leak, which is a detail that’ll ensure your devices keep working without any battery issues. Duracell guarantees these batteries against any defects, and the company will even repair or replace your devices if they’re damaged by a defective AAA battery.

Best Value
Skoanbe Button Coin Cell Batteries

If you need a coin or cell battery, consider the Skoanbe Button Coin Cell Batteries. With an affordable price that fits just about any budget, you get great value with the multiple batteries sold in each pack. These little batteries — each of which measures 11.6 x 5.4 millimeters — are sold in a pack of 10 pieces. Each battery features 1.5 volts and alkaline cells. They’re single-use, but each battery can power items like laser pointers, watches, remote controls, and even some toys. Made with 0 percent mercury and lead, the batteries are perfectly safe and made with quality materials. With high energy density and long-lasting power, these little coin cell batteries are durable and deliver just the right amount of power for your items. They’re also leak-proof, which prevents serious issues during use.

Premium Pick
Energizer MAX AA Batteries and AAA Batteries Combo Pack

If you’re looking for a selection of high-quality batteries that offer both versatility and variety, then the Energizer MAX AA Batteries & AAA Batteries Combo Pack is the perfect pick. This pack includes both AA and AAA batteries with 24 of each kind. These batteries will have you covered for so many different situations and uses — as two of the most commonly used sizes, they can power just about everything. Each battery is made with alkaline cells, and these batteries are the number one longest-lasting option offered by Energizer. You’ll pay a bit more, but you’ll enjoy lasting power that doesn’t deplete quickly as a result. These AA and AAA batteries are also designed with leak-resistant construction, which protects your devices and your batteries’ power for up to two years. With a shelf life of up to 10 years, you can keep a supply of these batteries for a long time.

Best Lithium
LiCB CR2032 3V Lithium Battery

If you need compact batteries for your different gadgets, devices, toys, or tools, then the LiCB CR2032 3V Lithium Battery is a great option. These slim cell or coin batteries each have three volts, and they can be used in everything from watches to LED lights, garage door openers, pedometers and even some medical devices. As a single-use battery made with lithium cells, you’ll enjoy great stability and high energy density from this product. They offer a long lifespan too, giving you enough power and longevity to last two to three times longer than conventional coin batteries. You get 10 batteries for one price, which also provides good value for your money. Another great perk of this kind of battery is its long shelf life. Able to last up to three years in storage, these coin batteries can survive safely in a range of temperatures.

Honorable Mention
ACDelco 100-Count AAA Batteries

A pack of ACDelco 100-Count AAA Batteries gives you more than just basic AA battery power. This impressive set of 100 individual AA batteries will have you covered for just about every kind of battery power need — and those 100 batteries will last quite a while. If you rely on batteries frequently, you won’t want to pass up this set. Each AA super alkaline battery has 1.5 volts, and you get maximum power and performance that lasts throughout many uses in common household items like clocks, gaming controllers, computer gadgets, and more. These single-use batteries manage to deliver optimal power while keeping your power supply consistent and reliable with stainless steel pre-coating that prevents leakage and enhances performance. And with a 10-year shelf life, you have plenty of time to use these awesome AA batteries before they even begin to degrade. 

Honorable Mention
Duracell CopperTop AAA Alkaline Batteries

Duracell CopperTop AAA Alkaline Batteries are the smaller version of our top product pick, and they’re a fantastic product if you need reliable, high-quality AAA batteries. Each one of the AAA batteries included in this multi-pack features 9 volts and can be used once until its power is depleted. Duracell constructed these batteries to offer reliable, consistent power that you can trust — meaning you can have faith as you place them in items like smoke detectors, flashlights, remotes, or even kids’ toys. They’re very dependable, featuring a guarantee against any potential material or workmanship defects. And each battery is specially designed to deliver long-term performance. They’re even guaranteed in storage, able to last for 10 years in storage or on a shelf. You can trust them to deliver the power you need when you need it most.

Honorable Mention
LiCB 1.5V Button Coin Cell Batteries

If you’re looking for batteries that you can trust, consider LiCB 1.5V Button Coin Cell Batteries. These little batteries are workhorses, and they’re put through strict quality control testing before they’re sold so you can rely on their performance and their longevity. Each one of these coin cell batteries is CE and ROHS certified, made with Grade A LR44 cells — a detail that ensures a longer battery life as well as lasting power over many uses. You’ll get 1.5 volts from each battery, and these single-use products can be used in all kinds of items from medical devices to laser pointers to watches to other small electronics. Sold in a set of 20, you’ll be quite pleased with the quality and the durability you experience when you use these batteries. They can even outlast competing batteries of the same size to offer you even more benefits.

Honorable Mention
Energizer Rechargeable AA and AAA Batteries with Charger

Are you tired of tossing out batteries after a single use? You can save money and lessen your environmental impact by switching to rechargeable batteries — specifically, the Energizer Rechargeable AA and AAA Batteries with Charger set. It offers everything you need, giving you two of the most common battery sizes so you can use them over and over again. A charger is also included, and it can fit either two AA or four AAA batteries for simultaneous charging. This set will recharge batteries in just 5-11 hours, giving you power in less than a day. A charging status indicator lets you know when batteries are recharged or if a battery is perhaps bad so you always know what’s happening with your power supply. These rechargeable batteries offer you a significantly longer lifespan, and the charger will keep them protected with features like auto shut-off and overcharge protection.

Honorable Mention
Streamlight 85177 CR123A Lithium Batteries

Streamlight 85177 CR123A Lithium Batteries can be used in any device that takes CR123A batteries, but they’re made just for Streamlight’s line of durable and super bright flashlights. This tactical product brand makes gadgets and flashlights that are seriously tough, and these companion batteries are no different. Sold as a set of 12 batteries, you’ll get the perfect fit for any Streamlight flashlight. Each battery is made with lithium manganese dioxide cells, and they can be used in products that take battery sizes 123A, CR123, K123A, and more. With 3 volts of power and storage life of up to 10 years, you’ll get great value out of this pack. They’re single-use, but you’ll find this set offers enough batteries to give you plenty of backups. Whether you’re a fan of Streamlight’s tactical flashlights or simply need a high-quality CR123A battery option, this is the product to choose. 

Honorable Mention
Rayovac Alkaline D Cell Batteries

Rayovac Alkaline D Cell Batteries are a great option if you need D batteries. While D isn’t the most common size, it’s often one you need for certain products — and it’s always a good idea to have a supply on hand. However, because you don’t use D batteries too often, you’ll want to make sure you’re picking a reliable product. These batteries, each of which offers 9 volts, will have you covered. Sold as a pack of 12, these Rayovac D cells are perfect for high-use devices. They can hold their power supply for up to 10 years, making them a great choice if you’re planning to store a few. They’re also designed to prevent leaks and other types of damage, giving you great quality and performance whenever you need it. Rayovac even tests these D batteries twice for reliability before they head out to customers. 

Tips

  • Battery memory can affect a battery’s performance over time, especially if you’re using rechargeable batteries. Make sure you fully deplete the batteries before recharging, or performance can worsen.
  • Simple details like the temperature and the humidity level can all affect a battery’s performance and longevity. Make sure you’re storing your batteries somewhere dry and at a mild temperature where they won’t be exposed to damaging factors.
  • Even rechargeable batteries can completely lose their power and become permanently depleted. After so many charges, you’ll have to recycle your rechargeable batteries and buy new ones.  

FAQs

Q: What is a good battery brand?

Some of the best battery brands are those that you already know quite well — like Energizer, Duracell, and Rayovac.

Q: What are the best batteries?

We like the Duracell CopperTop AA Alkaline Batteries, which are both a very commonly used battery size and a choice that’ll offer good performance paired with reliability. 

Q: What are the best batteries for beginners?

If you’re picking out the first pack of batteries to begin building a stockpile for your home, garage, or workspace, start with AA and AAA varieties. These are two of the most common types you’ll need. You can also add some C, D, and coin batteries — these are less common, but they're often needed when AA and AAA batteries aren’t.

Final Thoughts

When you buy Duracell CopperTop AA Alkaline Batteries, you’ll have great quality batteries in one of the most commonly needed sizes at your disposal. Another excellent option that packs plenty of value is a set of Skoanbe Button Coin Cell Batteries, which are affordable and versatile. Let us know which batteries are your favorites in the comments below.