AG3 is a common code for a 1.5V alkaline button cell. You’ll often see equivalent names on packaging. Several codes refer to the same physical size, while others share the size but use a different chemistry.

• Same size, alkaline: LR41, L736/LR736, 192, G3
• Same size, silver oxide: SR41/SR41SW, 392, 384

Alkaline and silver-oxide cells generally fit the same devices, but silver-oxide versions may offer a steadier voltage profile. It’s a good idea to match what your device manual specifies and confirm the chemistry and voltage listed on the product page before purchasing.

They’re essentially two names for the same 1.5V alkaline button cell size. AG3 is a common retail code, while LR41 is another widely used designation for the same dimensions and voltage. You may also see L736/LR736 or 192 listed alongside them.

• Type: Alkaline, single-use
• Voltage: 1.5V (nominal)
• Fit: Interchangeable in devices that call for AG3/LR41

One thing to watch for: SR41/392/384 are the silver-oxide versions. They’re the same size but a different chemistry, which can affect runtime. Check your device instructions to confirm what’s recommended.

An AG3 is a 1.5V alkaline button (coin) cell designed for compact electronics. It’s a disposable, non-rechargeable battery that’s commonly used in small gadgets where space is limited.

• Chemistry: Alkaline (single-use)
• Common uses: Watches, calculators, key fobs, small LED lights, and similar devices
• Alternate codes you might see: LR41, L736/LR736, 192

Some devices also accept the same-size silver-oxide variants (e.g., SR41/392/384). While they often fit, their performance characteristics can differ. Reviewing your device manual and the product details on the page can help you choose the best match.

Reese’s Law is a U.S. safety law intended to reduce button and coin battery ingestion risks, especially for children. For shoppers, this usually shows up as stronger packaging and clearer on-pack warnings.

• Child-resistant packaging: Harder-to-open, secure retail packs
• Warning labels: Prominent hazard messaging and icons on packs and products
• Product design: Many consumer products are required to have battery compartments that are harder for children to access

When you buy button batteries, look for secure packaging and read all warnings. Store batteries out of reach and keep used cells just as securely—they can still pose hazards. Always follow the instructions on the package.

A few quick checks can make your choice easier and help you get a good fit.

• Match the code: Search for AG3 and confirm equivalents like LR41, L736/LR736, or 192 in the product details.
• Confirm chemistry: Alkaline (AG3/LR41) vs. silver oxide (SR41/392/384). Both may fit, but performance can vary.
• Choose a pack size: Single, multi-pack, or assorted packs based on how many devices you’re powering.
• Check listing details: Look for voltage (1.5V) and any posted expiration information.

If your device manual lists a specific code or chemistry, use that as your guide before adding to cart.