Yes, LR44, AG13, SR44, 357, and 303 button cell batteries are all equivalent to one another and will work interchangeably in your remote controls. These different names refer to the same 1.5-volt alkaline button battery, just labeled differently depending on the manufacturer or regional standards. The confusion happens because battery companies use multiple naming systems for what is essentially an identical product. If your remote control originally used an LR44, you can confidently grab an AG13 or SR44 instead and it will function exactly the same way. Understanding these equivalencies saves you time when shopping and ensures you never buy the wrong battery by accident.
Why Are There So Many Names for the Same Battery?
The reason you see LR44, AG13, SR44, 357, and 303 all listed for the same battery slot comes down to international standards and manufacturer preferences. The IEC (International Electrotechnical Commission) established a standardized naming system, but many battery makers stick with their own legacy codes because switching names would confuse long-time customers. LR44 is the IEC standard designation, while AG13 is a common alternative you'll find on many generic packages, and SR44 sometimes refers to a silver oxide variant (though most remote controls use alkaline). The numbers 357 and 303 are older American codes that are becoming less common but still appear on older battery packages and device manuals.
Rather than creating confusion, think of these names as different labels on the same product. A remote control manufacturer might specify "LR44" in the manual, but when you're at the store, you might only find packages labeled "AG13" or "357." Your remote doesn't care what the label says; it just needs that 1.5-volt, button cell power source. We covered this in more detail in our guide on What Battery Is Equivalent to an LR44 and Where Can You Buy It? if you want a deeper dive into the naming systems.
Checking Your Remote Control Battery Compartment
The best way to confirm what battery your remote needs is to open the battery compartment on the back. You'll usually see a small door or spring-loaded cover; slide or unscrew it and look inside. If there's a printed label or marking, it will typically show you the battery type. If it says LR44, AG13, SR44, 357, or 303, you now know these are all interchangeable. The compartment itself will show you the battery size and shape, which should match the small, flat, circular button cell you're looking at in the store.
Most remotes specify the battery type clearly because manufacturers want you to buy the right replacement when the old one dies. However, they don't always list all the equivalent names, which is why some people end up confused at the checkout. If your remote manual says "LR44" but you only see "AG13" on store shelves, buy the AG13 with confidence. The fit and performance will be identical.
Voltage and Performance Are Identical
All of these equivalent button cell batteries deliver exactly 1.5 volts when fresh. Your remote control circuit is designed to work with that specific voltage, and any battery labeled LR44, AG13, SR44, 357, or 303 will provide it. The key is to make sure you're buying alkaline non-rechargeable versions, not silver oxide or lithium variants (which have different voltage curves and can damage some devices). AmVolt LR44 AG13 SR44 multi-name button batteries are premium alkaline cells that meet these specifications and work reliably in remote controls, watches, hearing aids, and countless other small electronics.
The voltage output is what matters most to your remote control. A fresh 1.5V cell will activate the infrared LED inside your remote, allowing it to communicate with your TV, air conditioner, or other devices. When the battery starts aging, the voltage drops gradually, and your remote becomes less reliable. Whether the battery is labeled LR44 or AG13 makes no practical difference to the remote's performance.
Size Matters More Than the Name
The physical dimensions of these equivalent batteries are identical. All LR44, AG13, SR44, 357, and 303 batteries measure approximately 11.6 mm in diameter and 5.4 mm in thickness. This standardized size is what remote control manufacturers count on when they design the battery compartment. Your remote won't fit a battery that's the wrong size, so if the compartment is designed for a button cell, you know it needs one of these equivalent types regardless of the label on the package.
This is why mixing up the names is usually harmless. You can't accidentally buy the wrong size because they're all the same. You might see some online retailers listing them separately or putting them in different price categories, but they're all the same 11.6 mm button cell that slides into your remote's battery slot.
Where to Buy These Batteries
These equivalent batteries are sold everywhere: pharmacies, grocery stores, hardware stores, online retailers, and specialty electronics shops. You'll find them under any of the equivalent names. If you prefer buying in bulk to save money and always have a spare on hand, AmVolt LR44 AG13 SR44 multi-name button batteries come in convenient multi-packs that are ideal for households with multiple remotes, watches, and small electronics. A 15-pack gives you extras to keep in a drawer for when you need a quick replacement.
Prices vary slightly between retailers and brands, so it's worth comparing. Generic brands and store-branded batteries are usually cheaper than name brands like Duracell or Energizer, but they all deliver the same 1.5 volts if they're alkaline. The choice comes down to your budget and preference for brand reliability.
Installation Tips for Your Remote
When you slide a fresh battery into your remote, pay attention to the orientation. Most battery compartments show a small symbol or diagram inside the door indicating which side should face up. Typically, the positive side (the flat, shiny side marked with a "+" symbol) should face toward the circuit board. The negative side (the slightly raised, dimpled side) goes toward the spring. Insert the battery gently and don't force it; it should slide in smoothly and make contact with the metal springs inside.
Once the battery is seated correctly, close the compartment door. Your remote should be ready to use immediately. Test it by pointing it at your TV or device and pressing a button. If it doesn't work right away, the battery may be installed backwards; flip it and try again.
The Bottom Line
The next time you're standing in a store looking for a remote control battery, remember that LR44, AG13, SR44, 357, and 303 are simply different names for the same product. Your remote doesn't care which label you choose. Grab whichever option is in stock and at the price point that works for you. If you prefer the convenience of having backups available at home, AmVolt LR44 AG13 SR44 multi-name button batteries offer reliable performance and the peace of mind of a full pack ready whenever you need one.