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Tech & Tools

Here’s how to properly store your batteries, according to experts

Never sure what to do with the batteries in your home? Here’s everything you need to know.
Sept. 4, 2024, 3:21 PM EDT

Henry St. Leger

Contributing Tech Reporter

Rechargeable batteries are more sustainable in the long run, but there are ways to take better care of your disposable batteries.
Rechargeable batteries are more sustainable in the long run, but there are ways to take better care of your disposable batteries.Shutterstock
What we like
  • Two-sided storage
  • Charge tester included
Something to note
  • Plastic latch

This Ontel Battery Daddy organizer can store and protect up to 150 batteries, across a variety of different battery sizes and types: 58 AA, 68 AAA, 4 9-Volt, 8 C, 8 D, & 8 Button Cells. This extensive storage solution also comes with a ‘battery tester’ to check the charge remaining in each battery, while the case handle makes it easy to move this compact box around. It also has a 4.8/5 Amazon rating across over 2,000 reviews, though a small number of users cite a faulty latching mechanism, so we’d recommend taking care when handling.

Best for AA / AAA: Fullcase Battery Storage

Fullcase Battery Storage Organizer

Fullcase Battery Storage Organizer

What we like
  • Decent size
  • Affordable
Something to note
  • Limited to AA/AAA

This Fullcase battery organizer only caters to AA and AAA, but can hold a total of 54 individual batteries from the two most common sizes. It’s made from a heavy-duty plastic, and clearly separates each battery to prevent them from coming in contact with each other. It has a 4.6/5 Amazon rating across 950 reviews. It also comes in gray, brown and white colorways.

Best for battery protection: Engpow Battery organizer

Engpow Battery Organizer

Engpow Battery Organizer

What we like
  • Fireproof and waterproof
  • Holds 220+ batteries
Something to note
  • Limited to AA/AAA

This Engpow battery organizer is made of silicone-coated fiberglass, making it able to withstand temperatures of up to 2000℉ — so if you end up in a house fire, your collection of batteries won’t explode and make it any worse. The box comes with two zippered pockets, and is able to store 66 AA, 56 AAA, 10 C, 10 D, 12 9-Volt, 15AAAA, and 48 Button cells, for over 220 batteries total. It has a 4.6/5 Amazon rating across over 2,800 reviews.

Best minimal storage: GlossyEnd Battery Storage Box

GlossyEnd Set of 4

GlossyEnd Set of 4

What we like
  • See-through case
Something to note
  • Limited space

This affordable plastic storage solution from GlossyEnd includes four separate boxes for storing AA and AAA batteries. The see-through case makes it easy to see what’s inside, and the sizing is ideal if you only have a handful of batteries to worry about. However, space is limited, and the batteries are in close contact even if the ends are not technically touching. It has a 4.6/5 Amazon rating across over 5,000 reviews.

Best long lasting batteries

Best for multiple sizes: Energizer 48-pack AA / AAA Batteries

Energizer AA Batteries and AAA Batteries

Energizer AA Batteries and AAA Batteries

What we like
  • Mix of sizes
  • 10 year shelf life
Something to note
  • Not rechargable

If you need a large quantity of commonly-used battery sizes, this 48-pack from Energizer gives you an even split of AA and AAA batteries. Energizer Max batteries are the brand’s longest lasting model with a 10 year shelf life. They also have a “leak resistant construction” to reduce the chance of leakage, according to the brand

Best for rechargeable batteries: Duracell Ion Speed Charger

Duracell Ion Speed

Duracell Ion Speed

What we like
  • Rechargeable
  • Comes with charger
Something to note
  • Only four AA batteries

I personally use Duracell’s rechargeable AA batteries for powering my TV remote and game console controllers. They are reusable, long-lasting options that reduce the e-waste from your home. This particular package includes Duracell’s dedicated battery charger and four pre-charged AA batteries — though the charger also works with AAA models and batteries from other brands.

Best compact case: Mupoer rechargeable lithium batteries with charger

Mupoer Rechargeable Lithium Batteries

Mupoer Rechargeable Lithium Batteries

What we like
  • Lithium ion
  • Charging storage case
Something to note
  • Lesser known brand

Unlike the Duracell charger above, this compact case works as a handy storage solution for up to eight AA batteries, with the option to use it to charge the batteries when they’re not in use. The closed-box design ensures that the batteries are kept safe from the elements, and the lithium ion batteries should last longer than NiMH (nickel-metal hybrid) alternatives.

How to safely dispose of batteries

Storing batteries is all well and good until you need to dispose of a battery safely. To get a sense of best practice of battery disposal, we spoke to David Klanecky, CEO of Cirba Solutions, which specializes in end-to-end battery recycling.

Klanecky says that “You should recycle all battery types since it is a more eco-friendly option, even if your community allows you to dispose of alkaline batteries in the regular trash. You can store these batteries in a non-conductive container, such as plastic or cardboard, to prevent any sparks. Keep them stored safely until you are ready to dispose of them properly.”

Klanecky adds that rechargeable batteries, “should never be placed in your trash as they contain heavy metals that can be hazardous to the environment. Rechargeable batteries can and should be recycled. To recycle them, cover the battery terminals with non-conductive clear tape before placing them in a recycling container or dropping them off at a recycling location.”

It’s important to use the correct disposal method to stop batteries from going to landfill, where hazardous substances can leak back into the environment.

Klanecky tells us that “Batteries disposed of in landfills can pose a fire risk due to chemical reactions, short circuits and potential leaks, especially lithium-ion batteries that come from devices like cell phones and laptops. Batteries that end up in landfills may corrode and decay, releasing dangerous chemicals into our soil, water sources and even the air.”

Frequently Asked Questions

Nate Wade, the Merchandise Manager at Batteries Plus, tells us that “Batteries should be stored so they are not touching or making physical contact with each other. If they touch each other or other metal objects, it could cause a short circuit.”

Klanecky also advises that we “store household batteries in their original packaging or a non-metal container to prevent accidental contact between terminals,” while keeping them “in a cool, dry place, away from direct sunlight and extreme temperatures.”

“Secondary (rechargeable) lithium batteries should not be stored fully charged in the short term, as it can lower the performance of the battery and cause the battery’s capacity to decrease,” says Wade. “However, if you are going to store the battery for the long-term (more than 6 months), it is perfectly fine to store it fully charged.”

When you purchase batteries, the specific packaging around them should specify how many years the batteries will last in storage. “Depending on the battery and brand, alkaline batteries can last anywhere from 5 to 15 years,” says Wade.

Meet our experts

At NBC Select, we work with experts who have specialized knowledge and authority based on relevant training and/or experience. We also take steps to ensure all expert advice and recommendations are made independently and without undisclosed financial conflicts of interest.

  • Nate Wade is the Merchandise Manager at Batteries Plus, working across flashlights, power equipment, solar panels and portable power stations.
  • David Klanecky is the CEO of Cirba Solutions, a leader in EV (electric vehicle) and end-to-end battery recycling.

Why trust NBC Select?

I have worked as a gadget reporter since 2017, covering the latest developments in consumer hardware, from TVs and headphones to smart speakers and VR headsets. I previously worked as the News & Features Editor at TechRadar and now freelance for NBC Select, Healthline and The Independent.

Catch up on NBC Select’s in-depth coverage of personal finance, tech and tools, wellness and more, and follow us on Facebook, Instagram, Twitter and TikTok to stay up to date.

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Henry St. Leger

Henry St. Leger is a contributing tech reporter at NBC Select.

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