AG13, SG13, LR1154, SR44, SR44SW, 303, 357, A76, and LR44 are all button cell batteries that are either identical or closely equivalent in size and function.
These alphanumeric codes can seem confusing at first glance, but they often refer to the same battery under different names or standards, depending on the manufacturer or region. If you’ve ever replaced a battery in a digital thermometer, wristwatch, calculator, laser pointer, or children’s toy, chances are you’ve used one of these. Despite their small size, these batteries are crucial for powering countless compact devices we use daily.
Did you know that the same battery might be labeled differently in the US, Japan, or Europe? For example, an LR44 and an AG13 are often interchangeable, yet labeled according to different naming systems—IEC vs. manufacturer branding.
Best Battery Brands for AG13, SG13, LR1154, SR44, SR44SW, 303, 357, A76, and LR44
Choosing the right replacement battery isn’t just about the size—it’s about quality, chemistry, and compatibility. Here are the top brand recommendations for each battery type, selected based on performance, shelf life, leak resistance, and user reviews.
AG13 (Also known as LR44 or A76): Energizer 357/303 Silver Oxide Battery
Offers longer life than alkaline AG13 batteries, ideal for watches and calculators. Trusted for quality and consistency.
SG13: Murata (Sony) SR44 Silver Oxide Battery
Formerly Sony-branded, Murata produces reliable silver oxide cells, perfect for high-drain devices like cameras and digital thermometers.
LR1154: Panasonic LR44 Alkaline Battery
Affordable and widely available, suitable for everyday low-drain electronics like small toys and LED lights.
SR44: Renata 357 Silver Oxide Battery
Swiss-made, high-precision battery designed for professional-grade watches and sensitive electronics.
SR44SW: Maxell SR44SW Watch Battery
Designed specifically for slow-drain devices like analog watches. Very stable voltage output over time.
303: Duracell D303/357 Silver Oxide Battery
Multi-drain design makes it ideal for both low and high-drain devices, covering broad usage needs.
357: Energizer 357/303
Same as the 303; Energizer’s dual-labeling ensures compatibility across different labeling standards.
A76: GP Alkaline Button Cell A76
Reliable and cost-effective, GP offers good performance for toys, remote controls, and household gadgets.
LR44: Duracell LR44 Alkaline Battery
A trusted option for general-purpose use with strong brand backing and long shelf life.
AG13 Battery: Common Uses, Chemistry, and Alternatives
The AG13 battery is one of the most commonly used button cell batteries in the world, known for its versatility and affordability.
What Is an AG13 Battery?
The AG13 is an alkaline button cell battery with a standard voltage of 1.5 volts and dimensions of 11.6 mm in diameter and 5.4 mm in height. It is also known by several other names, including LR44, A76, and 157, depending on the manufacturer and naming system used (e.g., IEC vs. ANSI).
Common Applications
AG13 batteries are often used in:
- Laser pointers
- LED keychains
- Small flashlights
- Calculators
- Toys
- Digital thermometers
- Hearing aids (in some cases)
These devices typically require low to medium energy over short durations, which suits the discharge pattern of alkaline batteries like AG13.
AG13 vs. LR44: What’s the Difference?
Technically, AG13 and LR44 are the same battery—just labeled differently. “AG13” is more commonly used in China and on budget-brand batteries, while “LR44” is the international IEC code. Both are alkaline cells.
However, if you’re using a high-drain device, you might consider switching to a silver oxide equivalent (like SR44 or 357). These alternatives provide a more stable voltage and longer lifespan.
Key Specs at a Glance
- Voltage: 1.5V
- Capacity: 110–130 mAh
- Chemistry: Alkaline (Zn/MnO2)
- Replaces: LR44, A76, 157, L1154
Best Pick: Energizer 357/303 (Silver Oxide)
A more efficient replacement for the AG13, especially for devices where long-lasting power is important.
SG13 Battery Overview: Silver Oxide Power with Enhanced Stability
The SG13 battery is a silver oxide button cell known for its stable voltage output and superior performance over standard alkaline counterparts like the AG13.
What Is an SG13 Battery?
The SG13 battery is a high-performance silver oxide cell, offering a voltage of 1.55V and dimensions of 11.6 mm (diameter) by 5.4 mm (height)—identical in size to AG13, LR44, and SR44 batteries. However, its chemistry gives it a notable edge in both lifespan and reliability.
It’s often labeled under the codes SR44, SR44W, 357, or 303, depending on manufacturer and intended use (watch vs. general electronics).
Why Choose SG13 Over Alkaline Equivalents?
Unlike alkaline batteries, silver oxide batteries like the SG13 maintain a consistent voltage throughout their discharge cycle. This is especially critical in devices that require stable power, such as:
- Digital thermometers
- Medical instruments
- Cameras
- High-end laser sights
- Precision watches
Where alkaline cells start to drop voltage immediately, silver oxide maintains full performance until it nears depletion—making it ideal for professional or medical-grade tools.
Key Benefits of SG13
- Stable 1.55V output
- Longer lifespan (150–200 mAh capacity)
- Leak-resistant design
- Reliable performance in high-drain devices
Best Pick: Murata (Sony) SR44 Silver Oxide Battery
Renowned for quality and stability, Murata batteries are trusted in industrial and medical devices globally. Their precision output is a perfect match for sensitive electronics.
Common Replacements for SG13
- SR44
- 357
- 303
- SR44W
- SR44SW (slight variation for low-drain devices)
LR1154 Battery Explained: The Budget-Friendly Button Cell
The LR1154 battery is another name for the popular alkaline button cell most commonly recognized as LR44 or AG13. While the chemistry and dimensions are the same, LR1154 is a designation more commonly used in Europe and Asia.
What Is an LR1154 Battery?
The LR1154 is an alkaline button cell with a nominal voltage of 1.5V and physical dimensions of 11.6 mm in diameter by 5.4 mm in height. It’s widely used and often confused with—or marketed alongside—AG13, A76, and LR44.
This battery is designed for general-purpose electronics that don’t demand high or consistent voltage. It is favored for being cost-effective, especially for devices where battery life isn’t a major concern.
Common Uses
- LED finger lights
- Children’s toys
- Flashing party supplies
- Budget digital watches
- Small electronic gadgets and novelty items
These products typically have low power needs, making LR1154 a suitable and affordable choice.
LR1154 vs. SR44 or 357
While they are the same size, LR1154 is alkaline, whereas SR44/357 are silver oxide cells. This means LR1154 will have:
- Lower energy capacity (~110 mAh)
- Shorter lifespan
- Decreasing voltage output over time
However, LR1154 is also:
- Cheaper
- Easily available
- Perfectly functional for casual, short-use devices
Best Pick: Panasonic LR44 Alkaline Battery
Panasonic delivers consistent quality even in its alkaline range, offering better leak protection and reliability than generic brands.
Equivalent Codes for LR1154
- AG13
- LR44
- A76
- L1154
- 157
Performance Devices
The SR44 is a silver oxide button cell prized for its consistent voltage and extended lifespan. Frequently used in sensitive electronics, this battery is often the preferred choice over alkaline alternatives like the LR44 or AG13.
What Is an SR44 Battery?
The SR44 battery delivers 1.55V and has the same dimensions as the AG13/LR44—11.6 mm diameter and 5.4 mm height—but uses silver oxide chemistry, which makes it more stable and reliable.
You’ll find the SR44 labeled with other names such as:
- 357 (Duracell/Energizer branding)
- 303 (multi-drain version)
- SR1154W
- SR44W or SR44SW, depending on discharge rating
Why Choose Silver Oxide Like SR44?
Silver oxide batteries are engineered for performance. Unlike alkalines that gradually lose voltage, SR44 cells maintain a steady 1.55V output until nearly depleted. This makes them essential for:
- Digital calipers
- Precision instruments
- Medical thermometers
- DSLR camera accessories
- Watches (especially chronograph models)
Key Specs and Features
- Chemistry: Silver Oxide
- Voltage: 1.55V
- Capacity: ~150–200 mAh
- Shelf Life: Up to 5 years
- Leak Resistance: Excellent
Best Pick: Renata 357 Silver Oxide Battery
Swiss-engineered and widely used by luxury watchmakers, Renata’s 357 offers long life and stable voltage with superior build quality.
Interchangeable With
- 357
- 303
- SR1154W
- SR44SW (for low-drain)
- LR44 (if no silver oxide is available, though not ideal)
A76, 357, and 303 Batteries Compared: Understanding Key Differences and Interchangeability
At first glance, A76, 357, and 303 batteries all look the same—but their chemistry and performance tell different stories. Understanding these distinctions helps ensure you’re using the right power source for your device.
A76 Battery: Affordable and Widely Available
The A76 battery is an alkaline button cell with a nominal voltage of 1.5V, identical in size to the LR44 and AG13. It is the ANSI designation for this cell and is widely available at low cost.
Typical Use Cases:
- Toys
- Calculators
- Small remotes
- Light-up gadgets
Pros:
- Low cost
- Readily available
- Fine for short-term or low-power use
Cons:
- Shorter lifespan
- Voltage drops steadily during use
357 Battery: High-Drain Silver Oxide
The 357 is a silver oxide battery (1.55V) designed for high-drain devices. It is interchangeable with the SR44 but optimized for steady output over a longer time.
Typical Use Cases
- Medical thermometers
- Laser pointers
- Digital measuring tools
- Cameras
Pros:
- Long-lasting
- Consistent voltage
- Leak-resistant
Cons:
- Slightly more expensive
303 Battery: Low-Drain Version of 357
The 303 battery is chemically identical to the 357 but optimized for low-drain devices such as:
- Analog watches
- Clocks
- Glucometers
It shares all the pros of the 357, but is more efficient for devices that draw less power slowly over time.
Quick Comparison Table
| Feature | A76 (Alkaline) | 357 (Silver Oxide) | 303 (Silver Oxide) |
| Voltage | 1.5V | 1.55V | 1.55V |
| Chemistry | Alkaline | Silver Oxide | Silver Oxide |
| Lifespan | Short | Long | Long (Low-Drain) |
| Voltage Drop | Gradual | Stable | Stable |
| Best Use | Toys, Gadgets | Medical, High-Drain | Watches, Low-Drain |
Best Picks
- A76: GP A76 Alkaline Battery – Great budget-friendly option.
- 357: Energizer 357/303 – High performance and dual compatibility.
- 303: Duracell 303/357 – Designed for both low and high-drain devices.
Conclusion
Understanding the differences and equivalents among AG13, SG13, LR1154, SR44, SR44SW, 303, 357, A76, and LR44 batteries can help you make smarter, safer decisions when replacing button cells in your devices. While many of these batteries share the same dimensions, the chemistry (alkaline vs. silver oxide) and intended use (low-drain vs. high-drain) play a major role in overall performance and lifespan.
Whether you’re powering a digital thermometer, a wristwatch, or a children’s toy, matching your device with the right battery type ensures optimal functionality and reduces the risk of leakage or failure. When in doubt, silver oxide versions typically provide superior stability and longevity, making them a worthwhile investment.
Frequently Asked Questions About AG13, SG13, LR1154, SR44, SR44SW, 303, 357, A76, and LR44 Batteries
Are AG13 and LR44 batteries the same?
Yes, AG13 and LR44 are the same size and both use alkaline chemistry. The difference lies in naming conventions—AG13 is more common in Asian markets, while LR44 is the IEC name.
Can I replace an LR44 battery with a 357 or SR44?
Yes. A 357 or SR44 is a silver oxide battery that offers a longer life and more stable voltage than an LR44. It’s a better choice for high-drain devices or those requiring consistent power.
What’s the difference between SR44 and SR44SW?
The SR44 is a general silver oxide battery, while the SR44SW is specifically designed for low-drain devices like analog watches. The SW (Low Drain) and W (High Drain) variations help match battery performance to device needs.
Why do these batteries have so many different names?
Different manufacturers, standards organizations, and markets use various naming conventions:
- IEC (e.g., LR44)
- ANSI (e.g., A76)
- Industry (e.g., AG13, 357) Despite the confusion, many of these names refer to identical or cross-compatible batteries.
Can I use an alkaline battery in place of a silver oxide one?
Technically yes, but not ideal. Alkaline batteries (like LR44 or A76) have a shorter lifespan and declining voltage, which may impair the performance of some devices.