The AG13 battery, also known as an AG13 coin cell, uses alkaline zinc manganese chemistry and delivers a nominal voltage of 1.5V in a compact button cell form. People often find the AG13 powering watches, calculators, toys, and medical devices. Device manufacturers choose the AG13 coin cell for its small size and steady output. Selecting the right AG13 or equivalent button battery matters for both performance and cost. In high-reliability fields like medical devices, premium AG13 coin cells keep defect rates below 1%, while consumer products favor lower-cost options with higher replacement rates.
| Application Type | Recommended Battery Tier | Defect/Failure Rate Target | Usage Percentage / Quantity Range | Cost Consideration and Impact |
|---|---|---|---|---|
| High-Reliability (Medical, Aerospace) | Tier 1 (Premium) | <1% defect rate | 500-2,000 units | Battery cost <5% of device failure cost; failure rate reduced by 60-80% with premium batteries |
| Consumer (Toys, Basic Electronics) | Tier 2 or Tier 3 | Higher failure rates accepted | 2,000-10,000 units | Low unit cost prioritized over reliability; replacement cost more significant than failure cost |
Understanding the differences in AG13 button batteries helps users match them to the right device and avoid unnecessary costs.
Key Takeaways
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The AG13 battery is a small, 1.5V alkaline button cell widely used in watches, calculators, toys, and medical devices due to its steady power and compact size.
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AG13 batteries and their equivalents like LR44 share similar size and voltage, but silver oxide alternatives like SR44 offer more stable voltage and longer life for sensitive devices.
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Choosing the right AG13 battery depends on device needs; alkaline types suit everyday electronics, while silver oxide batteries work better for precision and medical equipment.
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Proper storage and handling of AG13 batteries, such as keeping them cool and away from children, extend battery life and ensure safety.
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Recycling used AG13 batteries helps protect the environment and recovers valuable materials; many retailers and centers offer battery drop-off points.
Overview
AG13 Battery
The ag13 battery stands out as one of the most popular button cell batteries for small electronic devices. Manufacturers often refer to it as the lr44 battery or ag13 coin cell. This battery uses an alkaline chemistry, combining zinc and manganese dioxide to produce a nominal voltage of 1.5 volts. The chemical reaction inside the ag13 battery allows it to deliver a steady and reliable power output for most of its lifespan. The ag13 coin cell fits into compact spaces, making it ideal for watches, calculators, toys, and other gadgets that require a small but dependable energy source.
The ag13 battery shares many similarities with the lr44 battery, as both names describe the same type of coin cell. Users may also encounter the ag13 label on packaging for lr44 batteries, which can sometimes cause confusion. The ag13 coin cell provides a typical capacity of 110-130 mAh, which suits low-drain devices such as digital watches and basic calculators. As the battery discharges, its voltage gradually decreases, which can affect performance in some sensitive electronics.
Note: The ag13 battery, or lr44, remains a common choice for devices that need a balance between cost and performance. Its chemistry supports a long shelf life and consistent voltage, but users should always check device requirements before selecting a replacement.
Key Features
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Alkaline chemistry (zinc and manganese dioxide) ensures stable voltage output.
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Nominal voltage starts at 1.5V, with gradual decline during use.
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Standard size fits most devices designed for lr44 or ag13 coin cells.
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Capacity ranges from 110 to 130 mAh, supporting low to moderate drain applications.
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Widely available and interchangeable with other lr44 battery types.
| Battery Chemistry | Nominal Voltage (V) | Capacity (mAh) | Key Performance Features |
|---|---|---|---|
| Alkaline (AG13/LR44) | 1.5 | 110-130 | Stable voltage, gradual drop over time, best for low-drain devices |
| Silver-Oxide | ~1.55 | 150-200 | More stable voltage, ideal for devices needing steady power (watches, medical devices) |
| Zinc-Air | 1.4-1.45 | 600-700 | High capacity, suitable for long run-time devices |
| Mercury Oxide | ~1.35 | 180-200 | Phased out due to environmental concerns |
The ag13 battery, also known as the lr44 or ag13 coin cell, remains a reliable and cost-effective solution for many small electronics. Its button cell battery design and chemistry make it a preferred choice for both manufacturers and consumers.
Battery Specifications
Voltage and Chemistry
The ag13 battery uses an alkaline zinc-manganese chemistry. This chemistry produces a nominal voltage of 1.5 volts. The voltage starts at 1.5V and gradually drops as the battery discharges. This behavior makes the ag13 battery suitable for devices that can tolerate a slow decrease in power. The table below compares the voltage and chemistry of the ag13 with other common button cell batteries:
| Chemistry Type | Nominal Voltage | Voltage Behavior Over Time | Typical Capacity (mAh) | Notes |
|---|---|---|---|---|
| Alkaline (AG13) | 1.5 V | Voltage drops over time | 110-130 | Zinc-manganese chemistry; common alkaline button/coin cell |
| Silver-Oxide | 1.55 V | Very constant voltage | 150-200 | Higher capacity and more stable voltage than alkaline |
| Zinc-Air | 1.4 - 1.45 V | Slightly lower voltage | 600-700 | Large capacity; mostly used in hearing aids |
| Mercury-Oxide | 1.35 V | Slightly lower voltage | 180-200 | Contains mercury; no longer in use |
The ag13 battery stands out for its balance of cost and performance. Devices that require a steady voltage, such as medical instruments, may use silver-oxide cells instead. However, most consumer electronics work well with the ag13 battery's voltage profile.
Size and Dimensions
The ag13 battery has a standardized size that fits many small electronic devices. Its diameter measures 11.6 millimeters, and its height is 5.4 millimeters. These dimensions allow the ag13 to fit into compact spaces, making it a popular choice for watches, calculators, and toys. The following table summarizes the main physical and electrical specifications:
| Specification | Value |
|---|---|
| Diameter | 11.6 mm |
| Height/Thickness | 5.4 mm |
| Voltage | 1.5 V |
| Capacity | 105-138 mAh |
| Chemistry | Alkaline |
| Weight | 0.05 lb |
| Equivalent Part Nos | AG13, LR44, A76, L1154, PX76, and others |
The consistent size of the ag13 battery ensures compatibility across many brands and models. Users can replace an ag13 with any battery that matches these dimensions and voltage.
Capacity and Shelf Life
The ag13 battery typically offers a capacity between 110 and 130 milliampere-hours (mAh). This capacity supports low to moderate drain devices, such as digital watches and small toys. The battery can last for several months in devices with low power needs. Manufacturers rate the shelf life of the ag13 battery at about 2 years. Some brands claim storage times of up to 10 years under ideal conditions. The battery does not contain heavy metals like lead, cadmium, or mercury, making it safer for the environment.
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Shelf life: 2 years (standard), up to 10 years (long-term storage)
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Capacity: 110-130 mAh (typical range)
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Safety: Free from heavy metals; passes certifications such as KC, UL, MSDS, CB, UN38.3, and PSE
A longer shelf life means users can store spare ag13 batteries without worrying about rapid power loss. Devices that require frequent battery changes may benefit from higher-capacity or silver-oxide alternatives.
Operating Temperature
The ag13 battery operates reliably in a wide temperature range. Most manufacturers specify a range from -20°C to 60°C. This range covers most environments where small electronics are used. At low temperatures, the battery's capacity and voltage may decrease because the chemical reactions slow down. At high temperatures, the battery may degrade faster, reducing its lifespan.
Tip: For best performance, store and use ag13 batteries at room temperature. Extreme heat or cold can shorten battery life and affect device performance.
The wide operating temperature range makes the ag13 battery a dependable choice for devices used both indoors and outdoors. Users should always check the battery specifications to ensure compatibility with their device's requirements.
Common Uses
Watches and Clocks
AG13 button batteries play a vital role in powering watches and clocks. These small electronic devices require a stable and long-lasting energy source to keep accurate time. The AG13 battery delivers a steady 1.5V output, which supports consistent performance in timekeeping. The L1154F battery, a common equivalent, offers reliable voltage and a compact size, making it ideal for modern watch designs. Its long shelf life and leak-resistant design reduce maintenance and protect sensitive components.
| Feature/Characteristic | Description |
|---|---|
| Voltage | Stable 1.5V for consistent power |
| Capacity | 100-150 mAh, long-lasting energy |
| Shelf Life | 3-5 years, reduces maintenance |
| Leakage Resistance | Protects delicate mechanisms |
| Temperature Range | -20°C to 60°C |
Calculators and Electronics
Many calculators and other small electronic devices rely on AG13 button batteries for dependable operation. These batteries fit easily into compact spaces and provide enough capacity to support months of regular use. Devices such as remote controls, LED flashlights, laser pointers, and digital calipers benefit from the AG13’s steady voltage and low self-discharge rate. Users appreciate the convenience of a battery that maintains charge during storage and delivers reliable power when needed.
Toys and Gadgets
Toys and gadgets often use AG13 button batteries because of their high energy density and durability. Children’s toys, novelty gadgets, and small LED devices need a compact power source that can withstand frequent use. The AG13 battery’s anti-leak design and long shelf life help protect these devices and ensure they remain ready for play.
| Feature | Description |
|---|---|
| High Capacity | Durable power for small electronics |
| Operating Range | -4°F to 140°F |
| Anti-Leak Design | Extends device life |
| Shelf Life | Up to 3 years |
Medical Devices
Medical devices such as digital thermometers and blood glucose meters require reliable and safe power sources. AG13 button batteries meet strict manufacturing standards, offering stable voltage, leak resistance, and mercury-free chemistry. Their small size and high energy density make them suitable for portable medical equipment, supporting accurate readings and dependable operation.
Compact, reliable power sources like AG13 button batteries enable the design of innovative small electronic devices across many industries.
Alternative Models
LR44 and AG13
The AG13 battery and the LR44 battery share almost identical specifications. Both use alkaline chemistry with a zinc anode and manganese dioxide cathode. Their nominal voltage is 1.5V, and their physical dimensions are nearly the same, with the AG13 measuring about 11.6mm in diameter and 5.4mm in thickness, while the LR44 is slightly thinner at 5.2mm. This similarity allows users to treat the LR44 battery as one of the most common AG13 battery equivalents.
| Aspect | LR44 Battery | AG13 Battery | Similarities / Differences Summary |
|---|---|---|---|
| Chemistry | Alkaline (zinc/manganese dioxide) | Alkaline (zinc/manganese dioxide) | Both alkaline button cells; minor formulation differences |
| Physical Dimensions | 11.6mm x 5.2mm | 11.6mm x 5.4mm | Nearly identical; AG13 slightly thicker |
| Nominal Voltage | 1.5 V | 1.5 V | Identical voltage, interchangeable |
| Performance at Temperatures | Better at high temperatures | Better at low temperatures | Complementary performance characteristics |
| Energy Capacity & Longevity | Slightly higher capacity; lasts longer | Slightly lower capacity | LR44 offers longer battery life |
| Cost | More expensive upfront | Cheaper upfront | AG13 is cheaper; LR44's longer life can offset cost |
| Environmental Impact | More eco-friendly due to longer lifespan | Less eco-friendly comparatively | LR44 reduces waste |
| Interchangeability | Often interchangeable, but substitution risks | Often interchangeable, but substitution risks | Generally interchangeable; caution for sensitive devices |
| Risks of Substitution | Potential leakage or damage | Potential leakage or damage | Chemical and capacity differences may affect performance |
Both batteries serve as AG13 battery substitutes in most devices, but users should check device requirements. Sensitive electronics may react to small differences in chemistry or capacity. The LR44 battery usually lasts 5-10% longer than the AG13, making it a preferred choice for users who want extended battery life.
Note: LR44 and AG13 batteries are often interchangeable, but always confirm compatibility for high-precision or sensitive devices.
SR44, 357, and A76
The SR44 battery and the 357A battery represent silver oxide alternatives to the AG13. These AG13 battery equivalents offer a slightly higher nominal voltage of 1.55V and a greater capacity, typically between 150 and 200 mAh. The SR44 battery provides more stable voltage throughout its life, which benefits devices that require consistent power, such as medical equipment and cameras.
| Feature | LR44 Battery (Alkaline) | 357 Battery (Silver Oxide) |
|---|---|---|
| Chemistry | Alkaline manganese dioxide | Silver oxide |
| Rated Voltage | 1.5 Volts | 1.55 Volts |
| Estimated Capacity | ~120 mAh | ~150 mAh |
| Size (Diameter x Height) | 11.6 mm x 5.4 mm | 11.6 mm x 5.4 mm |
| Weight | 2 grams | 2.3 grams |
| Voltage Stability | Less stable | More stable |
| Typical Applications | Toys, LED lights, remotes | Medical equipment, cameras, watches |
| Price | More cost-effective | Pricier |
The A76 battery is another common AG13 battery equivalent. It matches the AG13 in size and voltage, using the same alkaline chemistry. The 357A battery, however, uses silver oxide chemistry, which gives it a longer shelf life and better voltage stability. These differences make the SR44 battery and 357A battery ideal AG13 battery substitutes for devices that need steady power and longer runtime.
Silver oxide batteries like SR44 and 357A are preferred for low-current or precision devices because they maintain a stable voltage until the end of their life.
Equivalent Names
Manufacturers and retailers use many names for AG13 battery equivalents. These names reflect different industry standards, chemical compositions, or regional preferences. Despite the variety, most of these batteries share the same size and voltage, making them interchangeable in many devices.
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AG13 batteries are also known as LR44, A76, 357, 76A, L1154, and SR44.
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These AG13 battery substitutes fit the same devices and provide similar performance.
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Differences in chemistry, such as alkaline or silver oxide, affect capacity and voltage stability.
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Market guides and manufacturer information help users select the right AG13 battery equivalents for their needs.
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The interchangeable naming system allows consumers to find suitable replacements even if the original battery code is unavailable.
| Battery Chemistry | Nominal Voltage | Typical Capacity (mAh) | Common Equivalent Names |
|---|---|---|---|
| Alkaline | 1.5 V | 110-130 | LR44, A76, 76A, L1154, LR1154 |
| Silver-Oxide | ~1.55 V | 150-200 | 157, 357, SR44, SR44W, SR44SW |
| Zinc-Air | 1.4-1.45 V | 600-700 | 675, ZA675, PR44, Blue Tab |
| Mercury Oxide | ~1.35 V | 180-200 | MR44, MR1154 |
Always match the size, voltage, and chemistry when selecting AG13 battery equivalents to ensure safe and reliable operation.
Comparison Table
The following table summarizes the key specifications, compatibility, and performance of AG13 battery substitutes and their equivalents:
| Specification Aspect | AG13 Battery (Alkaline) | LR44 Battery (Alkaline) | Silver Oxide Batteries (SR44, 357, 357A) | A76 Battery (Alkaline) |
|---|---|---|---|---|
| Chemistry | Alkaline manganese dioxide | Alkaline manganese dioxide | Silver oxide | Alkaline manganese dioxide |
| Nominal Voltage | 1.5 V | 1.5 V | 1.55 V | 1.5 V |
| Capacity Range | 110-130 mAh | 110-150 mAh | 150-200 mAh | 110-130 mAh |
| Physical Dimensions | 11.6 mm x 5.4 mm | 11.6 mm x 5.2 mm | 11.6 mm x 5.4 mm | 11.6 mm x 5.4 mm |
| Shelf Life | 2-3 years | 2-3 years | 3-5 years or more | 2-3 years |
| Voltage Stability | Moderate | Moderate | High | Moderate |
| Cost | Cost-effective | Cost-effective | More expensive | Cost-effective |
| Application Suitability | Watches, calculators, toys, remotes | Similar to AG13 | Medical devices, cameras, precision devices | Similar to AG13 |
AG13 battery equivalents like LR44, A76, and 357A provide users with many AG13 battery substitutes for different needs. The choice depends on the device's power requirements, desired lifespan, and budget. Silver oxide AG13 battery substitutes such as the SR44 battery or 357A battery offer better performance for sensitive or high-drain devices, while alkaline AG13 battery equivalents like LR44 and A76 are suitable for everyday electronics.
Tip: For devices that require stable voltage and long life, choose silver oxide AG13 battery substitutes. For general use, alkaline AG13 battery equivalents provide a cost-effective solution.
Choosing Alternatives
Matching Specs
Selecting the right ag13 battery substitutes starts with matching the technical specifications. Users should check the device manual for recommended voltage, chemistry, and size. Most devices accept batteries with a nominal voltage of 1.5V and dimensions of 11.6 mm by 5.4 mm. The lr44 battery and A76 often serve as direct replacements. Silver oxide options like SR44 or 357 provide a slightly higher voltage and more stable output, which benefits precision devices. Always confirm that the replacement matches the original battery’s chemistry and size to avoid performance issues.
Performance Differences
Performance varies between ag13 battery substitutes. Alkaline batteries such as AG13 and lr44 battery offer reliable power for toys, calculators, and clocks. Silver oxide batteries like SR44 and 357 deliver a steadier voltage and higher capacity, making them ideal for medical instruments and cameras. The table below highlights key differences:
| Battery Type | Chemistry | Nominal Voltage | Typical Capacity (mAh) | Voltage Stability & Usage Notes |
|---|---|---|---|---|
| AG13 / LR44 | Alkaline | 1.5 V | 110-130 | Interchangeable, used in toys, watches, calculators |
| 357 / SR44 / 303 | Silver Oxide | 1.55 V | 150-200 | More stable output, preferred for precision devices |
| A76 / L1154 | Alkaline | 1.5 V | Similar to AG13/LR44 | Suitable for general electronics |
Silver oxide ag13 battery substitutes maintain voltage better as they discharge. Alkaline types cost less and work well for most everyday electronics.
Cost and Availability
Cost and availability influence the choice of ag13 battery substitutes. Alkaline options like the lr44 battery and A76 are widely available and affordable. Silver oxide batteries cost more but last longer in demanding devices. Most stores and online retailers stock both types. Users should consider how often they replace batteries and the importance of long-term performance when choosing between alkaline and silver oxide equivalents.
Safety Tips
Proper handling and disposal of button-cell batteries protect users and the environment. Follow these safety guidelines:
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Store batteries out of reach of children to prevent swallowing hazards.
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Tape battery terminals or place each battery in a separate plastic bag to avoid short circuits.
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Never dispose of batteries in household trash or regular recycling bins.
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Use specialized battery recyclers or local hazardous waste programs for disposal.
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Keep batteries away from metal objects and direct sunlight.
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Clean battery contacts regularly to ensure good connections.
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Replace batteries promptly with the correct type to prevent device malfunction.
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If a battery leaks or corrodes, avoid direct contact and clean the area carefully.
Recycling ag13 battery substitutes helps recover valuable materials and reduces pollution. Many communities and retailers offer drop-off points for used batteries.
AG13 and 357 batteries share the same size and voltage, making them reliable choices for many devices. Silver-oxide 357 batteries deliver stable voltage and long service life, which supports critical uses in medical devices and timepieces. These batteries reduce replacement frequency and promote sustainability. Users should always check device requirements and match specifications before choosing a replacement. Safe handling and proper disposal protect both people and the environment. Many retailers and recycling centers offer reliable alternatives and collection points.
FAQ
What devices use AG13 batteries most often?
AG13 batteries power watches, calculators, toys, remote controls, and small medical devices. Many digital thermometers and laser pointers also use this battery. Users should check the device manual for the correct battery type.
Can you replace an AG13 battery with an LR44?
Yes, most devices accept LR44 as a direct replacement for AG13. Both share the same size and voltage. However, some sensitive electronics may perform better with silver oxide alternatives.
How should you store AG13 batteries for best shelf life?
Store AG13 batteries in a cool, dry place. Keep them away from direct sunlight and heat sources. Use the original packaging or a plastic container to prevent short circuits.
Are AG13 batteries safe for children’s toys?
Manufacturers design AG13 batteries to be safe when used properly. However, button batteries pose a swallowing risk. Always keep batteries out of reach of young children and supervise battery changes.
Written by Jack Elliott from AIChipLink.
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