The most common SR626SW battery equivalent options include 377, AG4, and LR626. These batteries share the same 6.8 mm diameter and 2.6 mm thickness, allowing for direct replacement in most watch models. Both alkaline and silver-oxide versions offer similar voltages, ensuring compatibility and making them interchangeable. The following table highlights key specifications:
| Chemistry | Alkaline (LR626, AG4) | Silver-Oxide (SR626SW, 377) |
|---|---|---|
| Voltage | 1.5 V | 1.55 V |
| Capacity | 15-17 mAh | 25-27 mAh |
Major brands offer these equivalents under various labels. Most watches accept any SR626SW battery or equivalent, so users can choose based on availability and brand preference.
Key Takeaways
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SR626SW batteries and their equivalents like 377, AG4, and LR626 share the same size and voltage, making them interchangeable in most watches and small devices.
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Silver-oxide batteries such as SR626SW and 377 offer longer life and stable voltage, ideal for precision devices like watches and medical tools, while alkaline types like AG4 and LR626 are budget-friendly but have shorter lifespan.
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Always check your device manual or battery compartment for recommended codes and chemistry to ensure the best performance and compatibility.
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Choose reputable brands that meet international standards like IEC 60086-3 and RoHS3 for reliable, safe, and long-lasting batteries.
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Handle and dispose of batteries properly by avoiding direct contact with terminals, using non-metallic tools, and recycling used batteries at designated centers to protect yourself and the environment.
SR626SW Battery Overview
Common Uses
The sr626sw battery serves as a reliable power source for many compact electronic devices. Manufacturers design this battery for use in watches, especially wristwatches, due to its stable voltage and small size. Many brands recommend the sr626sw for analog and digital watch models. In addition to watches, users often find the sr626sw in calculators, small toys, and medical equipment such as digital thermometers and glucose meters. The battery’s compatibility with devices that require consistent performance makes it a popular choice.
A wide range of button cell batteries, including the sr626sw, power remote controls, micro LED flashlights, and cameras. The silver-oxide chemistry ensures a steady voltage output, which is essential for devices like wristwatches that demand accuracy. The following table highlights the most common applications and attributes:
| Attribute | Details / Values |
|---|---|
| Chemical Composition | Silver-oxide (sr626sw), also available alkaline |
| Voltage | Nominal 1.5 V, up to 1.55 V for silver-oxide |
| Diameter | 6.8 mm |
| Height | 2.6 mm |
| Capacity | Higher than AG1 alkaline versions; varies by manufacturer |
| Common Applications | Watches, small toys, calculators, medical equipment |
| Compatibility | Interchangeable with AG4, LR626, 177, 376, 377 |
Tip: When replacing a wrist watch battery, always check the device manual for recommended equivalents to ensure optimal performance.
Key Specs
The sr626sw battery features a compact design with a diameter of 6.8 mm and a height of 2.6 mm. Most manufacturers use silver-oxide chemistry for this battery, which provides a nominal voltage of 1.55 V. The capacity typically ranges from 25 to 28 mAh, offering longer service life compared to standard alkaline button cell batteries. The battery weighs between 0.39 g and 0.57 g, making it ideal for lightweight devices.
Manufacturers highlight the sr626sw’s stable voltage and long shelf life, which often exceeds five years. The battery meets international standards such as IEC 60086-3 and RoHS3, ensuring safety and environmental compliance. The discharge rate remains low, around 40 μA, which supports extended use in watches and other precision devices. The following table summarizes the key technical specifications:
| Specification | Value/Description |
|---|---|
| Voltage | 1.55 V |
| Capacity | Approximately 27-28 mAh |
| Physical Dimensions | Diameter ~6.8 mm, Height ~2.6 mm |
| Battery Chemistry | Silver-oxide |
| Weight | Between 0.39 g and 0.57 g |
| Discharge Rate | 40 μA |
| Shelf Life | 5+ years |
| Compliance Standards | IEC 60086-3, RoHS3 |
| Termination Style | Requires holder |
| Typical Lifespan | 1 to 3 years depending on usage |
| Application | Watches, micro LED flashlights, remote controls, cameras, calculators |
Recent production and sales data show the sr626sw battery remains in high demand. For example, shipments from Japan to India reached over 420,000 units in a single batch, with several additional shipments following. This trend highlights the battery’s popularity in global markets.
Silver-oxide batteries like the sr626sw offer a stable voltage and longer lifespan than many alkaline alternatives. This makes them the preferred choice for precision devices such as wristwatches and medical instruments. The sr626sw battery’s consistent performance and broad compatibility explain its widespread use in both consumer and professional settings.
SR626SW Battery Equivalent Codes
377, AG4, LR626, and More
Manufacturers and retailers often list several codes as direct replacements for the sr626sw battery. The most common sr626sw battery equivalent options include 377, ag4, and lr626. These codes represent batteries that share the same physical dimensions and voltage, making them interchangeable in most devices. The sr626sw, 377, ag4, and lr626 batteries all measure 6.8 mm in diameter and 2.6 mm in height. This standardization ensures that users can select any of these codes when searching for a replacement in watches, calculators, or small electronics.
The following table highlights the key similarities among these battery equivalent codes:
| Feature | 377 / AG4 / LR626 Equivalents |
|---|---|
| Size (Diameter x Height) | 6.8 mm diameter, 2.6 mm thickness (common to all) |
| Nominal Voltage | Approximately 1.5 to 1.55 volts |
| Chemistry | Silver-oxide (e.g., 377, sr626sw) or alkaline (e.g., lr626, ag4) |
| Voltage Stability | Silver-oxide types maintain stable voltage; alkaline types drop over time |
| Typical Capacity | Silver-oxide: ~25–30 mAh; Alkaline: ~15–17 mAh |
| Common Labels | 377, ag4, lr626, sr626, sr66, 376 (dual drain types) |
| Usage | Interchangeable in watches, calculators, small electronics |
| Performance Notes | Silver-oxide batteries offer longer life and steadier voltage; alkaline are budget-friendly but less consistent |
This comparative data confirms that 377, ag4, and lr626 batteries share the same size and nominal voltage. The chemistry, either silver-oxide or alkaline, affects performance and lifespan. Silver-oxide batteries such as the sr626sw and 377 battery provide longer service life and more stable voltage, which benefits precision devices like watches. Alkaline options such as the lr626 battery and ag4 battery offer a budget-friendly alternative, though they may not last as long.
Industry standards, such as those set by the International Electrotechnical Commission (IEC), require that all sr626, sr626sw, 377, ag4, and lr626 batteries conform to identical size and voltage specifications. This standardization allows users to confidently choose any sr626sw battery equivalent for their devices. Devices designed for one code can reliably use another without performance issues, confirming their compatibility and interchangeable nature.
Note: Always check the device manual for recommended codes, but most watches and small electronics accept any sr626sw battery equivalent due to these strict standards.
Why Codes Differ
Different brands and regions use a variety of codes for the same sr626sw battery. This diversity in naming comes from the development of multiple national and international standards over time. Organizations such as the IEC, ANSI, JIS, and British Standards each created their own systems for naming batteries. These standards specify details such as battery size, chemistry, and performance, which led to different codes for the same battery type.
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The IEC 60086 series and ANSI C18.1 series are two of the most common standards. Each uses systematic alphanumeric codes to reflect battery properties.
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The IEC established committees for battery standards in the early 1900s, while ANSI began its standards in 1919. Over time, these organizations worked to harmonize their systems, but many naming differences remain.
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Technical committees within the IEC produce standards for different battery chemistries, such as silver-oxide and alkaline, resulting in unique codes for each chemistry.
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Brands often adopt the code that matches their preferred standard or market region. For example, a Japanese brand may use the JIS code, while a European brand may use the IEC code.
This coexistence of standards explains why the sr626sw, 377, ag4, and lr626 codes all refer to batteries with identical size and voltage. The chemistry, such as silver-oxide or alkaline, may appear in the code as well. Despite the different names, these batteries remain interchangeable in most devices, including watches and calculators.
Tip: When shopping for a sr626sw battery equivalent, look for the size (6.8 mm x 2.6 mm) and chemistry (silver-oxide for longer life, alkaline for cost savings). The code may differ, but the compatibility remains the same.
Battery Equivalent Comparison
Size and Voltage
All SR626SW battery equivalents, including 377, AG4, and LR626, share the same physical dimensions. Each battery measures 6.8 mm in diameter and 2.6 mm in height. This consistency allows users to replace a battery in a watch or small device without concern for fit. The voltage remains nearly identical across these types. Silver-oxide batteries such as SR626SW and 377 provide a nominal voltage of 1.55V. Alkaline equivalents like AG4 and LR626 offer a voltage of 1.5V. The small difference in voltage does not affect most devices.
The following table summarizes these measurements:
| Feature | Voltage | Capacity (mAh) | Size (Diameter x Height in mm) |
|---|---|---|---|
| AG4, LR626, LR66, 177/376/377 | 1.5V | 18-20 | 6.8 x 2.6 |
| SR626, SR626SW | 1.55V | 25 | 6.8 x 2.6 |
These measurements confirm that SR626SW, 377, AG4, and LR626 batteries are interchangeable in size and voltage. Users can confidently select any equivalent for their watch, calculator, or small electronic device.
Tip: Always check the device’s battery compartment for size markings before purchasing a replacement.
Chemistry Types
SR626SW battery equivalents come in two main chemistry types: silver-oxide and alkaline. Silver-oxide batteries, such as SR626SW and 377, deliver a stable voltage of 1.55V and a higher capacity, usually between 25 and 28 mAh. These batteries suit precision devices that require consistent power, such as watches and medical instruments. The silver-oxide chemistry ensures a steady output, which helps maintain accuracy in timekeeping and sensitive electronics.
Alkaline batteries, including AG4 and LR626, provide a voltage of 1.5V and a lower capacity, typically 18 to 20 mAh. These batteries cost less and work well in devices with lower power demands, such as small toys or calculators. However, alkaline batteries tend to lose voltage more quickly as they discharge, which can affect performance in devices that need stable power.
The table below compares the main chemistry types:
| Battery Type | Chemistry | Voltage | Capacity (mAh) | Size (Diameter x Height mm) | Weight (g) | Key Characteristics |
|---|---|---|---|---|---|---|
| SR626SW | Silver Oxide | 1.55V | 25-28 | 6.8 x 2.6 | 0.39 | Stable voltage, higher energy density, longer lifespan, ideal for precision devices |
| LR626 | Alkaline | 1.5V | 18-20 | 6.8 x 2.6 | N/A | Lower capacity, less stable voltage, cost-effective alternative |
| AG4 | Alkaline | 1.5V | 18-20 | 6.8 x 2.6 | N/A | Similar to LR626, commonly used in watches and toys |
Silver-oxide batteries like SR626SW and 377 remain the preferred choice for high-end watches and medical devices. Alkaline options such as AG4 and LR626 offer a budget-friendly solution for less critical applications.
Performance
Performance differences between SR626SW battery equivalents depend on chemistry. Silver-oxide batteries, including SR626SW and 377, maintain a steady voltage throughout their lifespan. This stability supports accurate timekeeping in watches and reliable operation in medical devices. The higher capacity of silver-oxide batteries means they last longer before needing replacement.
Alkaline batteries like AG4 and LR626 provide shorter service life and less consistent voltage. Devices that use these batteries may experience reduced performance as the battery discharges. For example, a digital thermometer powered by an alkaline battery may require more frequent replacements and could show less accurate readings over time.
The chart below illustrates the voltage stability of silver-oxide and alkaline batteries:
Silver-oxide batteries such as SR626SW and 377 battery deliver superior performance in devices that demand accuracy and longevity. Alkaline equivalents like AG4 and LR626 work best in devices where cost is a priority and performance demands are lower.
Note: For watches, medical equipment, and other precision devices, silver oxide batteries provide the most reliable power source.
Choosing the Right SR626SW Battery Equivalent
Device Compatibility
Selecting the correct sr626sw battery for a device starts with checking the original battery code. Many wristwatches, calculators, and small electronics accept 377, ag4, or lr626 batteries as direct replacements. The sr626sw, 377, and lr626 battery all share the same size and voltage, which allows users to swap them without concern for fit or function. Devices that require precise timing, such as wristwatches, benefit most from silver-oxide batteries like sr626sw or 377. For toys or calculators, an ag4 or lr626 battery often provides a cost-effective solution. Always match the battery chemistry to the device’s needs for best results.
Tip: Review the device manual or check the battery compartment for recommended codes before purchasing a replacement.
Brand and Quality
Not all batteries deliver the same performance. Leading brands produce sr626sw batteries that meet strict international standards. The sr626sw battery complies with IEC 60086-3, which ensures global safety, reliability, and size consistency. Manufacturers test each battery to maintain a stable 1.55-volt output, even in changing temperatures. This stability is essential for devices like watches and medical instruments. The sr626sw battery also meets RoHS3 requirements, which means it follows environmental and safety guidelines. Choosing a reputable brand increases the chance of long-lasting and dependable performance.
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Look for these quality indicators:
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IEC 60086-3 compliance
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RoHS3 certification
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Consistent voltage output
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Positive customer reviews
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Replacement Tips
Proper battery replacement helps devices run smoothly and safely. Always use clean, dry hands or non-metallic tweezers when handling a new sr626sw, 377, or lr626 battery. Avoid touching the flat surfaces to prevent corrosion. Insert the replacement with the correct polarity, matching the plus and minus signs. Dispose of old batteries at a recycling center to protect the environment. For watches and wristwatches, silver-oxide batteries like sr626sw or 377 offer the best performance and longest life. For less demanding devices, an ag4 or lr626 battery can serve as a suitable equivalent.
Note: Never mix old and new batteries in the same device. This practice can cause leakage or reduced performance.
SR626 and SR626SW Differences
Chemistry
The sr626 and sr626sw batteries both use silver-oxide chemistry, which provides a stable voltage and long service life. Manufacturers design the sr626sw specifically for low-drain devices, such as analog watches, where a steady voltage is critical. The sr626, while similar in size and chemistry, sometimes appears as a general-purpose label for silver-oxide button cells. Both types deliver a nominal voltage of 1.55 V and a capacity between 24 and 27 mAh. This chemistry ensures that the sr626 battery maintains a smooth voltage curve throughout its lifespan, unlike alkaline alternatives that show a gradual voltage drop.
The table below highlights the technical differences between sr626, sr626sw, and common alkaline equivalents:
| Feature | SR626 (Silver Oxide) | SR626SW (Silver Oxide) | LR626 (Alkaline) |
|---|---|---|---|
| Chemistry | Silver Oxide | Silver Oxide | Alkaline |
| Nominal Voltage | 1.55 V | 1.55 V | 1.5 V |
| Capacity | 24-27 mAh | 25-27 mAh | 18-23 mAh |
| Voltage Stability | Stable | Stable | Less stable |
Note: Silver-oxide chemistry in the sr626 and sr626sw batteries supports devices that require consistent power and accuracy.
Applications
The sr626 and sr626sw batteries serve different roles based on their chemistry and voltage stability. The sr626sw battery appears most often in precision devices, such as high-end wristwatches, medical instruments, and cameras. These devices rely on the battery’s ability to deliver a constant voltage for accurate operation. The sr626 battery, while similar, sometimes functions as a general-purpose option for a wider range of electronics.
A comparison of typical applications shows clear distinctions:
| Battery Type | Common Applications |
|---|---|
| SR626SW | Analog and digital watches, medical devices, cameras, calculators, measuring tools, car remotes, fitness trackers |
| SR626 | Watches, calculators, small electronics, some medical devices |
| LR626 (Alkaline) | Toys, flashlights, household gadgets |
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Devices that use the sr626sw battery include:
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Wristwatches (analog and digital) for accurate timekeeping
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Digital thermometers and glucose meters for reliable readings
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Calculators and measuring tools for consistent performance
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Car remotes and fitness trackers for long-lasting power
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Devices that use the sr626 battery often overlap with sr626sw, but may also include less demanding electronics.
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Alkaline equivalents like LR626 power toys and flashlights, where voltage stability is less important.
A case study in digital thermometers demonstrates the advantage of the sr626sw battery. Thermometers using alkaline batteries require frequent replacements and may show less accurate readings. Switching to an sr626sw battery results in longer-lasting power and improved accuracy, reducing maintenance needs.
Tip: For any device that demands precision and reliability, the sr626sw battery remains the preferred choice over general-purpose or alkaline options.
Safety and Disposal
Handling
Safe handling of a battery like the SR626SW protects both users and the environment. Silver oxide batteries contain materials that can harm people and nature if mishandled. Users should always store batteries in a cool, dry place, away from heat sources and direct sunlight. Keeping batteries out of reach of children and pets prevents accidental swallowing or injury. Before disposal or transport, users should insulate the battery terminals with tape to prevent short circuits. Burning or puncturing a battery is dangerous because it can release toxic chemicals and gases. Retailers such as watch shops and electronics stores often accept used batteries for safe collection and recycling.
Tip: Always use non-metallic tools when removing a battery from a device to avoid accidental discharge or damage.
The following table summarizes key safety guidelines for different battery types:
| Battery Type | Safety Guidelines and Disposal Instructions |
|---|---|
| Alkaline Batteries | Allowed in general trash in some regions; insulate terminals of 9V batteries to prevent sparks or fires. |
| Rechargeable | Must be recycled; insulate terminals during shipment. |
| Lead Acid | Require hazardous material pickup and professional removal. |
| Coin Batteries | Contain toxic metals; must not be disposed in general trash; require special recycling. |
Proper Disposal
Proper disposal of a battery like the SR626SW follows strict environmental standards. Silver oxide batteries are classified as hazardous waste. Users must not throw them in regular household trash or recycling bins. Instead, they should take used batteries to municipal hazardous waste facilities or designated retail drop-off points. Many pharmacies and electronics stores partner with recyclers to ensure safe processing. Some manufacturers and communities offer mail-back programs for added convenience.
A scientific study found that specialized recycling methods can recover up to 83% of the silver from waste silver oxide button cells. This process reduces environmental contamination and conserves valuable resources. Laws in some states, such as Maine, prohibit the sale of mercury-added silver oxide button cell batteries, highlighting the need for responsible disposal. Manufacturers encourage users to follow local regulations and participate in recycling programs to protect the environment and community health.
Note: Never dispose of a battery in fire or water. Always presume unknown batteries are hazardous and use proper recycling channels.
The sr626sw battery equivalent stands out for its reliable performance and global compatibility. The table below shows how silver oxide sr626sw batteries deliver higher voltage and longer life than alkaline alternatives, making them ideal for precision devices like watches.
| Feature | SR626SW Battery Equivalent | LR626 Battery Equivalent |
|---|---|---|
| Chemistry | Silver oxide (1.55V) | Alkaline (1.2V) |
| Capacity (mAh) | 28 | 18-24 |
| Size (mm) | 6.8 x 2.6 | 6.8 x 2.6 |
When choosing a replacement, users should consider capacity, voltage stability, and device requirements. Reviewing the comparison and tips sections helps ensure the right sr626sw supports every watch or device.
FAQ
What devices use SR626SW battery equivalents?
SR626SW battery equivalents power wristwatches, calculators, medical devices, small toys, and cameras. Many manufacturers design these batteries for compact electronics that require steady voltage and reliable performance.
Can users mix different brands of SR626SW equivalents in one device?
Mixing brands is not recommended. Each brand may use slightly different materials or manufacturing processes. Using batteries from the same brand ensures consistent performance and reduces the risk of leakage.
How long does an SR626SW or equivalent battery last?
A silver-oxide SR626SW battery usually lasts 1 to 3 years in a watch. Alkaline equivalents may last less than a year. Actual lifespan depends on device power consumption and usage patterns.
What is the safest way to store spare SR626SW batteries?
Store spare batteries in a cool, dry place. Keep them in their original packaging or a battery organizer. Avoid contact with metal objects to prevent short circuits. Always keep batteries out of reach of children and pets.
Are SR626SW batteries environmentally friendly?
Silver-oxide batteries contain small amounts of heavy metals. Users should recycle them at designated collection points. Proper recycling helps recover valuable materials and prevents environmental harm.
Written by Jack from AIChipLink.
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