Retail stores carry 23A batteries in the battery aisle, but online retailers usually have more stock and lower prices

A 23A battery is a small cylindrical cell used in car key fobs, garage door openers, laser pointers, and some security systems. You can buy one at a drugstore, supermarket, hardware store, or online. The fastest option is a store you can reach in minutes; the cheapest is usually an online bulk order. Most single batteries cost between $3 and $8 depending on the brand and where you shop.

The battery goes by several names — 23A, A23, MN21, V23GA — so check your device manual or the old battery itself to confirm which one you need. All these names refer to the same battery, just labeled differently by different manufacturers.

Key Takeaways

  • Drugstores, supermarkets, and hardware stores stock 23A batteries in their battery aisles, usually for $4 to $8 per battery.
  • Amazon, Walmart.com, and other online retailers often sell 23A batteries in packs of 4 or more at a lower per-battery cost.
  • Battery specialty stores like Batteries Plus Bulbs carry 23A batteries and can test your device to confirm you have the right size.
  • Dollar stores and convenience stores sometimes stock 23A batteries, but selection is limited and prices are often higher than drugstores.
  • Buying in bulk online saves money if you use multiple devices with 23A batteries or want spares on hand.

Drugstores and supermarkets with 23A batteries in stock

CVS, Walgreens, and Rite Aid all carry 23A batteries in their battery sections. A single battery typically costs $5 to $8. You can walk in, find the battery aisle, and leave in minutes. Many of these stores also let you check stock online before you go, though availability varies by location.

Supermarkets like Kroger, Safeway, and Whole Foods stock 23A batteries near the checkout or in the health and beauty section. Prices are usually $4 to $6 per battery. If you are already shopping for groceries, grabbing a battery at the same trip saves a separate trip.

The trade-off is that single batteries at retail stores cost more per unit than buying in bulk online. If you only need one battery right now, a drugstore is the fastest choice. If you need several or want to stock up, online is cheaper.

Online retailers with bulk and single-battery options

Amazon sells 23A batteries in packs of 4, 8, or more, usually at $0.50 to $1.50 per battery when you buy a pack. Shipping is often free with Prime membership or on orders over a certain amount. Search for "23A battery" or "A23 battery" to find current listings and prices.

Walmart.com carries 23A batteries in single units and multipacks. Prices are comparable to Amazon, and you can pick up in-store at many locations if you want the battery the same day. Best Buy also stocks 23A batteries online and in stores, though prices tend to be higher than drugstores.

eBay sellers offer 23A batteries in bulk at competitive prices, but shipping times vary. Read the seller's shipping policy and return terms before you buy. Costco and Sam's Club sell 23A batteries in large multipacks if you have a membership, but the per-battery cost only makes sense if you use them regularly.

Battery specialty stores

Batteries Plus Bulbs has locations in most states and carries 23A batteries for $4 to $6 per battery. Staff can test your device to confirm you have the right battery size, which is useful if you are unsure. They also offer recycling for old batteries at no charge.

Local battery shops, if you have one in your area, often stock 23A batteries and can answer questions about which battery your device needs. Prices are usually in line with drugstores. Call ahead to confirm they have 23A in stock before you visit.

Dollar stores and convenience stores

Dollar Tree, Dollar General, and Family Dollar sometimes stock 23A batteries, but selection is inconsistent. When they do carry them, prices are often $1 to $2 per battery, which can be a good deal. However, not all locations carry them, and stock runs out quickly.

Convenience stores like 7-Eleven and Circle K occasionally stock 23A batteries near the register, but prices are usually $6 to $8 per battery — higher than drugstores. Use these only if you need a battery when ready and no other store is open.

What to check before you buy

Confirm the battery size on your device or its manual. Look for "23A," "A23," "MN21," or "V23GA" — these are all the same battery. If your device uses a different size, buying the wrong battery will not work and you will have wasted money.

Check the expiration date on the package. Batteries degrade over time even when unused. A battery with an expiration date more than two years away is safe to buy; anything closer should be avoided unless the price is very low.

Compare the per-battery cost, not just the package price. A pack of 8 batteries for $6 costs $0.75 per battery; a single battery for $5 costs $5 per battery. If you only need one, the single is worth it for convenience. If you need more than one, the pack is cheaper.

Brand differences and battery quality

Duracell, Energizer, and Panasonic are the most common brands. All three work in standard 23A devices. Duracell and Energizer batteries typically last slightly longer and cost a bit more. Store brands from Walmart, Amazon, or CVS are cheaper and work fine for most uses like key fobs and garage door openers.

Alkaline 23A batteries are the standard type and work in nearly all devices that use this size. Some specialty devices use lithium 23A batteries, which last longer but cost more. Check your device manual to see which type it needs.

Frequently Asked Questions

Can I use a different battery size if I cannot find a 23A?

No. Battery sizes are not interchangeable. A 23A battery has specific voltage and dimensions that your device expects. Using the wrong size can damage the device or cause the battery to leak. Always use the exact size your device manual specifies.

How long does a 23A battery last?

A 23A battery typically lasts 6 to 12 months in a car key fob, depending on how often you use it. In a garage door opener remote, it may last 1 to 2 years. Devices that use the battery constantly will drain it faster than devices used occasionally.

Is it cheaper to buy 23A batteries online or in a store?

Online is cheaper per battery if you buy a pack of 4 or more, usually $0.50 to $1.50 per battery. A drugstore single battery costs $4 to $8. If you need just one battery right now, a store is faster. If you need several or want spares, online bulk packs save money.

Where can I recycle old 23A batteries?

Batteries Plus Bulbs accepts old batteries for recycling at no charge. Many drugstores and supermarkets also have battery recycling programs — ask at the customer service desk. Some municipalities have hazardous waste collection days where you can drop off batteries for free.

What is the difference between 23A and 23AE batteries?

23A and 23AE are the same battery. The "E" stands for "extra" or is straightforward a manufacturer's designation. Both have the same voltage and size. If your device calls for a 23A, a 23AE will work, and vice versa.