The AG13 battery is equivalent to LR44, A76, 357, and several other button cell batteries. It’s a small but powerful 1.5V alkaline battery commonly used in watches, toys, calculators, laser pointers, and small medical devices. Despite the different names, many of these batteries are functionally identical, which can make finding replacements confusing.
Have you ever stared at a battery label like “AG13” and wondered if an LR44 would do the trick? You’re not alone. With so many different codes for what is essentially the same cell, making sense of battery equivalents can feel like deciphering a secret code. That’s exactly why this reference chart exists.
Top AG13 Battery Equivalents You Can Rely On
If you’re looking to replace an AG13 battery, these three options are your safest bets:
LR44 Alkaline Battery
The LR44 is a direct alkaline replacement for AG13 and is widely available in stores and online.
Why we picked it: It’s affordable, easily accessible, and has consistent 1.5V output—making it ideal for general-purpose devices.
A76 Duracell Battery
Duracell’s A76 offers the same size and voltage as AG13, but comes from a trusted brand.
Why we picked it: With better leak protection and a longer shelf life, it’s perfect for high-value or sensitive electronics.
357 Silver Oxide Battery
The 357 battery offers slightly higher capacity and longer life, especially in power-hungry devices.
Why we picked it: Its silver oxide chemistry provides stable voltage and durability—great for watches, glucometers, and digital thermometers.
What Is an AG13 Battery and What Is It Used For?
The AG13 battery is a small, round alkaline button cell battery that delivers 1.5 volts. It’s also known by other names such as LR44, A76, and 357, depending on the brand and chemical composition. Typically 11.6mm in diameter and 5.4mm in height, it’s compact yet powerful enough to run various small electronics.
You’ll find AG13 batteries commonly used in:
- Digital thermometers
- Wristwatches
- Laser pointers
- LED flashlights
- Small electronic toys
- Glucometers
- Hearing aids (in some older models)
- Pocket calculators
What makes the AG13 so versatile is its combination of size and voltage. Its 1.5V output provides a stable power source without taking up much space. For many people, it’s that little battery they don’t think about—until it runs out.
AG13 batteries are typically alkaline, but you can also find silver oxide variants under equivalent names like 357, which tend to last longer and maintain more consistent voltage. This makes silver oxide versions a better choice for sensitive devices like medical equipment or precision tools.
Despite being small, these batteries are designed to be reliable. They’re often sold in multi-packs because of their short lifespan in high-drain devices. If your device frequently dies, consider silver oxide versions for better endurance.
AG13 Battery Equivalent Chart: Cross Reference Guide
AG13 batteries go by many names, depending on the manufacturer, battery chemistry, or regional standards. This can be confusing if you’re trying to find a replacement. Luckily, they are all nearly identical in size and function, making them interchangeable in most cases.
Here’s a handy reference chart of the most common AG13 battery equivalents:
| Common Name | Type | Chemistry | Voltage | Notes |
| AG13 | General Use | Alkaline | 1.5V | Standard designation |
| LR44 | IEC Standard | Alkaline | 1.5V | Widely available; common in toys & tools |
| A76 | Duracell Code | Alkaline | 1.5V | Trusted brand version of AG13 |
| L1154 | Generic Code | Alkaline | 1.5V | Sometimes labeled on packaging |
| 357 | Silver Oxide | Silver Oxide | 1.55V | Longer-lasting alternative |
| SR44 | IEC Standard | Silver Oxide | 1.55V | Better voltage stability, ideal for watches |
| G13 | International | Alkaline | 1.5V | Common in Asian markets |
| KA76 | Kodak Code | Alkaline | 1.5V | Branded variant, same specs |
Tip: While alkaline versions are more affordable, silver oxide equivalents like the 357 or SR44 are preferable for high-drain or sensitive devices.
Using this chart, you can confidently pick a battery that matches your AG13-powered gadget—whether you’re browsing online listings or standing in front of a store display.
Alkaline vs Silver Oxide: Which AG13 Equivalent Should You Choose?
When replacing an AG13 battery, one of the most important decisions you’ll make is whether to go with an alkaline or silver oxide equivalent. While both types share the same size and voltage (around 1.5V), their performance and longevity vary significantly.
Pros of Alkaline Batteries (e.g., LR44, A76, AG13, L1154)
Alkaline batteries are the most cost-effective choice. They’re easy to find and typically sold in bulk, which makes them popular for devices that don’t require precision or long runtimes.
- Cheaper than silver oxide
- Sufficient for low-drain devices (toys, remote controls, LED lights)
- Readily available
Cons of Alkaline Batteries (e.g., LR44, A76, AG13, L1154)
- Voltage drops quickly over time
- Shorter lifespan, especially in high-drain devices
Silver Oxide Batteries (e.g., 357, SR44)
Silver oxide batteries may cost a bit more, but they offer superior performance. Their voltage remains stable throughout the discharge cycle, which is crucial for sensitive electronics.
Pros of Silver Oxide Batteries
- Longer battery life
- Consistent voltage output
- Better for watches, medical tools, and measuring instruments
Cons of Silver Oxide Batteries
- Higher upfront cost
- Not always available in convenience stores
So, Which One Should You Choose?
- For basic gadgets like toys or flashlights: go with alkaline.
- For accuracy-dependent devices like glucometers, watches, or digital calipers: choose silver oxide.
Choosing the right chemistry doesn’t just impact performance—it can extend the lifespan of your device and prevent premature battery failure.
How to Safely Replace an AG13 Battery at Home
Replacing an AG13 battery is usually simple, but doing it incorrectly can damage your device—or worse, cause a short circuit. Here’s a step-by-step guide to help you change your battery safely and correctly.
What You’ll Need:
- A new AG13 or equivalent battery (LR44, A76, 357)
- A small screwdriver (if needed for your device)
- Clean, dry hands or non-metallic tweezers
- A clean surface to work on
Power Off the Device
Always turn off the device before removing the battery. This prevents short circuits or static electricity damage.
Open the Battery Compartment
Use a small screwdriver if necessary. Be gentle—some devices have fragile clips or covers.
Remove the Old Battery
Use plastic tweezers or your fingers. Avoid using anything metallic to prevent damaging the battery contacts.
Check Polarity
Look for the “+” and “–” signs on both the battery and the compartment. Inserting the battery backward can damage your device.
Insert the New Battery
Place the new battery firmly in the slot, ensuring proper polarity. You should feel it “click” into place or sit snugly.
Close the Compartment and Test
Secure the cover and power on your device. If it doesn’t work, double-check the battery orientation.
Safety Tips
- Never mix old and new batteries.
- Avoid touching the battery terminals too much—your skin oils can reduce contact quality.
- Dispose of old batteries properly (check local battery recycling options).
Where to Buy AG13 Battery Equivalents (and What to Look Out For)
Whether you’re replacing your battery in a pinch or stocking up for future use, knowing where to buy AG13 equivalents—and what to look for—can save you time and money.
Where to Buy AG13 (LR44, A76, 357) Batteries:
- Local Stores:
Most supermarkets, pharmacies, hardware stores, and electronics retailers carry AG13 equivalents. Look for them in the electronics or battery section. - Online Retailers:
Amazon, Walmart, eBay, Best Buy, and battery-specific sites like Battery Junction and Microbattery offer bulk deals and brand variety. - Specialty Stores:
For silver oxide versions (like the 357 or SR44), camera shops, hearing aid centers, and watch repair shops often carry them.
What to Look For Before Buying:
Check the Label for Equivalents
- The packaging should clearly state if it’s an AG13 equivalent—look for LR44, A76, 357, or SR44.
Battery Chemistry
- Choose alkaline for budget-friendly, everyday use and silver oxide for long-lasting, high-precision applications.
Brand Reputation
Stick with trusted names like:
- Duracell (A76)
- Energizer (357/303)
- Panasonic (LR44, SR44)
- Maxell (SR44W)
- Sony (SR44)
Freshness
- Check the expiration date—older batteries may already be partially drained.
Beware of Fakes
- If the price is too good to be true (especially online), it probably is. Counterfeit batteries often perform poorly or leak.
Conclusion
The AG13 battery, known by names like LR44, A76, and 357, is one of the most versatile button cell batteries used in everyday gadgets. Whether you’re replacing it in a toy, watch, calculator, or medical device, knowing the right equivalent ensures your device continues to perform efficiently.
When choosing a replacement, consider the battery chemistry—alkaline for affordability and silver oxide for longer-lasting power. Always verify product labels, check for polarity, and buy from trusted sources to avoid low-quality or counterfeit batteries.
Frequently Asked Questions About AG13 Battery Equivalents
What is the equivalent of an AG13 battery?
The AG13 battery is equivalent to LR44 (alkaline), A76, and 357 or SR44 (silver oxide). All of these share similar dimensions and voltage (around 1.5V), making them interchangeable in most devices.
Are AG13 and LR44 the same?
Yes, in most practical terms. Both are alkaline batteries with the same size and voltage. The LR44 is often used as the international designation, while AG13 is more commonly used in Asia.
Can I use a 357 battery instead of an AG13?
Absolutely. The 357 is a silver oxide version and offers a longer life and more stable voltage output than an AG13, which is great for sensitive electronics like watches and medical devices.
Is A76 the same as AG13?
Yes, the A76 battery is another name for an alkaline AG13 battery. Brands like Duracell and Energizer often use A76 as their labeling standard.
Which is better: AG13 or 357?
If you’re prioritizing performance and longevity, go with the 357. If you need a cheaper, everyday-use battery, the AG13 (alkaline) version will usually suffice.
Can I mix different types of button batteries?
No. It’s not recommended to mix alkaline and silver oxide batteries in the same device, as they discharge at different rates and could cause malfunction or leakage.