Batteries power everything from our household devices to our vehicles—making them essential in daily life. However, improper battery storage can lead to leakage, corrosion, or reduced lifespan. Whether you’re storing spare batteries or preparing for long-term storage, knowing the correct methods is key. Learn the best way to store batteries in this guide!
How to Store Batteries Long Term
Long-term battery storage requires a stable, cool, and dry environment away from direct sunlight and extreme temperatures to preserve functionality and safety. To prevent short circuits, store batteries in their original packaging or a dedicated case. Do not mix old and new batteries or different types of batteries, because this can cause chemical reactions. You will also need to inspect stored batteries for signs of damage—such as leakage, swelling, or corrosion—and dispose of batteries responsibly.
How to Store Different Types of Batteries
Different batteries have unique storage requirements. Understanding differences between battery types like button cell batteries, AA batteries, AAA batteries, and more can help you get the most out of them—whether they’re for household use, electronics, or vehicles.
Household Batteries
Storing single-use household batteries is easy—especially if you can keep them in their original packaging. This helps protect them from other batteries and reduces the risk of short-circuiting or other potential damage. Leaving your batteries in electronics can also cause unnecessary battery drainage or leakage damage, so you should always remove batteries from devices that won’t be used for an extended period. If the original packaging is unusable or has been thrown away, you can safely store batteries in separate containers by type or use a battery organizer. Storing them this way helps prevent accidental discharge or chemical reactions that can occur when batteries come into direct contact with one another.
Rechargeable Batteries
Storing rechargeable batteries in their chargers may seem convenient but should be avoided, as it can lead to overcharging and reduce battery performance over time. Similarly to single-use batteries, rechargeable batteries should be stored in their original packaging or within a battery case—at about a 50% charge—in a cool, dark place. Rechargeable batteries naturally lose a small percentage of their charge daily, with lithium-ion batteries discharging around 5% each month. To extend the battery’s lifespan, recharge it every six to nine months.
Car Batteries
The best way to preserve a car battery is to use it! If you’re storing a car short-term, start it and drive for about 30 minutes to charge the battery first. For long-term vehicle storage, completely remove the battery from the vehicle. After removing it, the best way to store a car battery is to place it in a cool, dry location above freezing temperatures—and on a non-conductive shelf. To help maintain its charge and prolong battery life, consider connecting the battery to a trickle charger, which will keep it topped off without overcharging. Keep the battery upright to prevent leakage and periodically check its charge to ensure it’s ready for use. Another helpful battery storage tip for car batteries is to clean the battery terminals and apply a thin layer of petroleum jelly to help prevent corrosion during storage.
Frequently Asked Questions About Battery Storage
How long do batteries last in storage?
How long you can store batteries varies depending on battery type, who makes them, and when they were made. Because of this, the lifespan of unused household batteries in their original packaging can range from 5 to 20 years in storage. Be sure to check the manufacturer details for more information about that particular product—but here’s a general estimate for typical lifespans for different battery types:
- Alkaline: 5 to 10 years
- Lithium: 10 to 15 years
- Lithium-ion: Up to 4 years
- NiMH (Nickel–metal hydride): 3 to 5 years of non-use
What are the benefits of battery storage boxes?
The best way to store batteries is in a cool, dry place, away from direct sunlight and heat sources. Using a dedicated battery storage case also makes it easier to access and identify batteries you need while maintaining a safe storage environment. While manufacturers recommend storing batteries in their original packaging, a dedicated battery storage container keeps batteries organized, separates rechargeable and single-use types, and prevents short circuits by avoiding contact with metal objects. Many battery storage organizers feature built-in charge testers, making it easy to monitor levels, separate old and new batteries, maintain terminal alignment, and ensure safe, organized storage.
Can you store batteries in a Ziploc bag?
Yes, you can store batteries in a plastic food storage bag for home battery storage. However, it’s important to ensure the bag is completely sealed to prevent moisture from damaging the batteries.
Can I store batteries in a plastic container?
Yes, you can store batteries in a plastic container. To keep batteries neatly bound and prevent them from rolling around or making contact with one another, use rubber bands or small battery straps. Alternatively, consider investing in a plastic container designed specifically for battery storage—just remember to keep the batteries organized and the case shut.
Can you put batteries in the fridge?
No, you should not put batteries in the refrigerator. While the cooler temperature might lengthen the battery life, the moisture inside the refrigerator could damage the battery in other ways. It’s best to keep your batteries stored in a cool, dark space!
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