Micron Technology Inc.
IC SDRAM 2GBIT 800MHZ 96FBGA
You may often find LR41 batteries in small electronic devices such as watches, calculators, thermometers, toys, and medical equipment.
However, finding the right replacement can be confusing because the LR41 button cell is often sold under different names, including AG3, 192, SR41, 384, and 392.
This guide will help you understand LR41 battery equivalents, compare common replacements, and identify the best option for your device.
We'll also provide a cross-reference chart, brand comparisons, and practical tips for replacing LR41 batteries safely and effectively.
An LR41 battery is a small, round, alkaline button-cell battery and provides a nominal voltage of 1.5 volts. Its name follows the IEC (International Electrotechnical Commission) standard code:
L = Alkaline chemistry
R = Round shape
41 = Size code
Due to its small size and reliable performance, it is common in watches, calculators, laser pointers, thermometers, toys, and other low-power devices.
The LR41 battery typically measures 7.9 mm in diameter and 3.6 mm in height. It is designed for devices requiring a compact power source and moderate energy output.
While LR41 is the standard IEC designation, the same battery size is often sold under other names, such as AG3, 192, V3GA, and GP192, depending on the manufacturer.
Because batteries with similar dimensions may use different chemistries, it is important to check compatibility before choosing a replacement.
Understanding the specifications and equivalent battery codes can help ensure the best performance and battery life for your device.
| Specification | Typical Range / Value | Notes |
|---|---|---|
| Battery Type | Alkaline button cell | Primary, non-rechargeable |
| Dimensions | Diameter: 7.8–8.0 mmHeight: 3.5–3.7 mm | Common nominal size: 7.9 mm × 3.6 mm |
| Nominal Voltage | 1.5 V | Standard for alkaline chemistry |
| Nominal Voltage (Silver Oxide) | 1.55 V | - |
| Typical Capacity | 25–32 mAh | Depends on load and brand; lower under continuous high drain |
| Shelf Life | 2 to 5 years | Store cool and dry to maximize life |
| Operating Temperature | –10 °C to +50 °C | Manufacturer range may vary (some state –20 °C to +60 °C) |
| Chemistry | Zinc–Manganese Dioxide (Alkaline) | Non-hazardous primary cell |
| Self-Discharge Rate | < 5 % per year at 20 °C | Very low; allows years of shelf storage |
| Cutoff Voltage (Alkaline) | ~1.0 V | - |
| Cutoff Voltage (Silver Oxide) | ~1.2 V | - |
| IEC Size Code | 736 | Based on the international standard; refers to 7.9 × 3.6 mm |
| ANSI/NEDA Code | LR41 | Common in North America |
| Equivalent Codes | AG3, 192, V36A, LR736, GP192, L736 | Codes used by various manufacturers for the same size/type |
| Alternate Chemistry | SR41 / 384 / 392 (Silver Oxide) | Same size, higher stable voltage, higher capacity, higher cost |
| Typical Weight | ~0.4–0.5 g | Varies by construction and label |
| Regulatory Compliance | RoHS | Meets restriction on hazardous substances for electronic use |
Watches: Many digital and analog watches use LR41 batteries to power timekeeping functions, displays, alarms, and backlights.
Calculators: Pocket calculators often rely on LR41 batteries to provide long-lasting power for everyday calculations.
Digital Thermometers: LR41 batteries are common in digital thermometers, where stable voltage is important for accurate temperature readings.
Laser Pointers: Small laser pointers frequently use LR41 batteries because they are lightweight and can fit inside slim battery compartments.
Toys and Games: Miniature toys, electronic games, and novelty items often use LR41 batteries to power lights, sounds, and simple electronic functions.
Medical Devices: Some medical devices, such as glucose meters and small diagnostic tools, may use LR41 or compatible button-cell batteries.
LED Lights: Compact LED keychain lights and other portable lighting devices often use LR41 batteries due to their small size and convenience.
Electronic Instruments: Various small electronic instruments, including timers, counters, and testing devices, use LR41 batteries as a dependable power source.
Finding an LR41 battery substitute is important because the exact LR41 model is not always available when needing a replacement.
Different manufacturers often use their own battery codes for batteries with similar dimensions and performance, making compatible alternatives a practical solution. Here are reasons:
LR41 batteries may be out of stock in some stores or regions. Knowing equivalent battery types allows you to quickly find a suitable replacement without delaying the use of your device.
Many batteries share the same size as the LR41 but are sold under different names, such as AG3, 192, V3GA, and GP192. Understanding these alternatives gives you more purchasing options.
Some LR41 replacements use silver-oxide chemistry instead of alkaline chemistry. Silver-oxide batteries, such as SR41 variants, provide more stable voltage, higher capacity, and longer lifespan.
Alternative batteries are available at different prices. Users can choose a lower-cost alkaline replacement or invest in a longer-lasting silver-oxide option depending on their needs.
Certain devices may perform better with specific battery chemistries. Knowing the available LR41 equivalents helps ensure proper operation and reliable performance.
When a battery fails unexpectedly, having knowledge of compatible alternatives can help you restore power quickly without waiting for the exact LR41 battery model.
The LR41 battery have several different names depending on the manufacturer and battery chemistry. The chart below lists the most common LR41 equivalents and their compatibility.
| Battery Code | Chemistry | Voltage | Notes |
|---|---|---|---|
| LR41 | Alkaline | 1.5V | Standard version |
| AG3 | Alkaline | 1.5V | Very common equivalent |
| SR41(e.g.,SR41SW, SR41W) | Silver Oxide | 1.55V | Longer life, stable voltage |
| 392(SR41W) | Silver Oxide | 1.55V | Interchangeable with SR41 |
| 384(SR41SW) | Silver Oxide | 1.55V | Similar to 392 |
| 192 | Alkaline | 1.5V | Less common |
| V36 | Alkaline | 1.5V | Duracell code |
| V303 | Alkaline | 1.5V | Another Duracell code |
| GP192 | Alkaline | 1.5V | Gold Peak brand |
| L736 | Alkaline | 1.5V | Common in Europe |
| V3GA | Alkaline | 1.5V | - |
Although these batteries have similar dimensions, always check your device manufacturer's recommendations before replacing the battery.
Several batteries can replace an LR41 because they share similar dimensions and voltage ratings.
However, their chemistry and performance may differ. Below are the most common LR41 battery equivalents.
One of the most common LR41 replacements. It is an alkaline button-cell battery with the same size and 1.5V output as the LR41.
AG3 batteries are widely available and work well in calculators, toys, and other low-drain devices.
The 192 battery is another alkaline equivalent to the LR41. It has the same dimensions and voltage, making it a suitable replacement for most devices designed for LR41 batteries.
A manufacturer-specific designation for an LR41-sized alkaline battery. It offers similar performance and compatibility and is common in small electronic devices.
An alkaline button cell that matches the LR41 in size and voltage. It is often used as a direct replacement in watches, laser pointers, and calculators.
The SR41SW, also known as the 384 battery, uses silver-oxide chemistry and provides a nominal voltage of 1.55V.
It delivers more stable voltage and typically lasts longer than alkaline LR41 batteries. It is common in watches and precision electronic devices.
The SR41W, also called the 392 battery, is another silver-oxide alternative.
It is designed for devices requiring slightly higher current output while maintaining stable performance throughout its service life.
A silver-oxide button cell with the same physical size as the LR41. It is often recommended when longer battery life and consistent voltage are important.
The 392 battery is closely related to the 384 battery and can replace the LR41 in many applications. It offers excellent shelf life and reliable performance in electronic devices.
For general-purpose applications, alkaline batteries such as AG3, 192, GP192, and V3GA are usually sufficient.
For watches, medical devices, and other electronics requiring stable voltage and longer operating life, silver-oxide options such as 384, 392, SR41SW, and SR41W are often the better choice.
Choosing the correct LR41 replacement helps ensure your device operates safely and performs as expected. Use the following simple steps to identify a compatible battery.
Check the Device Manual - The device manual usually lists the recommended battery type and any compatible replacements.
Look at the Old Battery - The battery code is printed on the top of the old battery. Common codes include LR41, AG3, 192, 384, and 392.
Verify the Battery Size - Make sure the replacement has the same dimensions as the original LR41 battery to ensure a proper fit.
Confirm the Voltage - Most LR41 batteries provide 1.5V. Check that the replacement battery meets your device's voltage requirements.
Check the Battery Chemistry - Alkaline and silver-oxide batteries may have the same size but different performance characteristics. Choose the type recommended for your device.
Use a Cross-Reference Chart - A battery cross-reference chart can help you find compatible replacements when the exact LR41 battery is unavailable.
Match the Device Application - Some devices, such as watches and medical instruments, may perform better with silver-oxide batteries than alkaline alternatives.
Buy from a Trusted Brand - Reputable battery brands often provide better quality, longer life, and more reliable performance.
No, LR41 equivalents are not exactly the same, even though they share the same size and basic voltage.
Many batteries can physically replace an LR41, but their internal chemistry and performance are different.
Most LR41 equivalents have the same dimensions, but they may use different chemistries such as alkaline or silver oxide.
Alkaline versions (like AG3 and 192) and silver-oxide versions (like 384 and 392) do not perform the same way.
LR41 and alkaline equivalents provide 1.5V, while silver-oxide versions provide about 1.55V. This small difference can affect performance in sensitive devices like watches and medical tools.
Silver-oxide LR41 equivalents generally last longer and deliver more stable power. Alkaline versions are usually cheaper but may drain faster.
Silver-oxide batteries maintain a more consistent voltage during use, while alkaline batteries tend to experience a faster voltage drop during discharge.
Some devices can use both types, but others work better with a specific chemistry. Using the wrong type may cause reduced performance or inaccurate readings.
LR41 equivalents are similar in size and basic function, but they are not identical. Always choose the correct type based on your device’s requirements for the best performance and reliability.
Different battery brands use their own naming systems, but many still produce LR41-compatible button cells. The table below summarizes the most common LR41 equivalents by brand.
| Brand | LR41 Equivalent Codes | Chemistry | Common Applications |
|---|---|---|---|
| Energizer | 392, 384 | Silver Oxide | Watches, precision devices |
| Duracell | D392, D384 | Silver Oxide | Watches, calculators, medical devices |
| Panasonic | AG3, SR41SW, SR41W | Alkaline / Silver Oxide | Small electronics, watches |
| Maxell | LR41, SR41SW, SR41W | Alkaline / Silver Oxide | Watches, calculators, toys |
| Sony / Murata | SR41SW (384), SR41W (392) | Silver Oxide | Watches, precision electronics |
| Renata | SR41SW (384), SR41W (392) | Silver Oxide | Watches, timekeeping devices |
| GP Batteries | GP192 | Alkaline | General-purpose electronics |
| Battery Type | Common Codes | Advantages | Typical Uses |
|---|---|---|---|
| Alkaline | LR41, AG3, 192, GP192 | Lower cost, widely available | Toys, calculators, small electronics |
| Silver Oxide | 384, 392, SR41SW, SR41W | Longer life, stable voltage output | Watches, medical devices, precision instruments |
Energizer typically labels LR41-size batteries under silver-oxide codes like 392 or 384. These are often used in watches and precision devices requiring stable voltage.
Duracell offers LR41 equivalents under codes such as D392/D384. These batteries are designed for small electronics, including watches, calculators, and medical devices.
Panasonic LR41 equivalents are usually marked as AG3 (alkaline) or SR41SW/SR41W (silver oxide). They are widely used in everyday small electronics.
Maxell produces both alkaline and silver-oxide versions. Common equivalents include LR41 (alkaline) and SR41SW / SR41W (silver oxide), especially for watch applications.
Sony (now Murata) offers silver-oxide LR41 equivalents such as SR41SW (384) and SR41W (392), known for long life and stable output.
Renata focuses mainly on watch batteries. Their LR41 equivalents are usually SR41SW (384) and SR41W (392), optimized for precision timekeeping.
GP Batteries uses the designation GP192, which is a direct LR41 alkaline equivalent suitable for general-purpose devices.
-Most LR41 equivalents are available in either alkaline or silver-oxide chemistry.
-Alkaline batteries are more affordable and suitable for everyday devices; silver-oxide batteries provide longer service life and more consistent performance for watches and other precision electronics.
-Choosing the right replacement depends on your device's requirements and desired battery lifespan.
Turn Off the Device: Make sure the device is switched off before starting to avoid short circuits or damage.
Open the Battery Compartment: Locate the battery cover. It may be secured with a small screw, sliding lid, or snap-on cover. Gently open it using a small screwdriver or fingernail.
Remove the Old Battery: Carefully take out the LR41 battery using a plastic tool or tweezers. Avoid using metal tools if possible to prevent damage to the contacts.
Note the Battery Direction: Before removing, check the battery's installation orientation. Pay attention to the “+” and “–” terminals to ensure proper installation of the new battery.
Insert the New LR41 Battery: Place the new LR41 or compatible equivalent (such as AG3 or 392) into the slot with the correct polarity.
Close the Battery Cover: Clip, slide, or tighten the battery cover to ensure the cover back in place.
Test the Device: Turn on the device to make sure it is working properly. If it does not power on, recheck the battery orientation.
Dispose of the Old Battery Properly: Recycle the used LR41 battery according to local electronic waste guidelines.
Most LR41 battery problems are caused by incorrect replacements, chemistry mismatch, or long-term storage issues.
Choosing the right equivalent and storing batteries properly can help avoid these common problems.
LR41 batteries can drain quickly in high-frequency devices or when alkaline batteries are used instead of silver oxide batteries. This often leads to frequent replacements.
The voltage of an alkaline LR41 battery will gradually decrease during discharge. This can cause devices like watches or thermometers to become inaccurate or stop working early.
LR41 batteries are designed for low-power electronics. In devices requiring more current, they may struggle to deliver stable performance.
If left inside a device for a long time, especially after being fully discharged, LR41 batteries may leak. This can damage the battery contacts and internal circuits.
Many users accidentally choose the wrong equivalent (such as mixing alkaline and silver-oxide types), which can lead to reduced performance or compatibility issues.
Slight deviations in battery size or wear on the contacts may cause power outages or equipment malfunctions.
LR41 batteries have a limited shelf life. Over time, unused batteries may lose capacity even if they are not installed in a device.
Extreme temperatures can affect LR41 performance, causing reduced efficiency in very cold or hot environments.
The LR41 battery is small button-cell power source in everyday devices. While it has many equivalents such as AG3, 192, 384, and 392, not all replacements perform in the same way.
Differences in battery chemistry, voltage stability, and lifespan affect the performance of equipment.
Alkaline options are affordable and suitable for basic devices, while silver-oxide batteries offer longer life and more stable performance for sensitive electronics.
By checking the device manual, matching the battery code, and selecting the correct chemistry, you can ensure reliable performance and avoid common battery issues.
Choosing the right LR41 equivalent ultimately helps extend device life and improves overall usability.
Yes, Energizer 392/384 Multi-Drain Battery SR41 is a direct replacement for LR41.
377 battery matches the LR41 in size, offering a potential replacement option. However, differences in chemical composition and voltage can affect performance(e.g., LR41 is alkaline and 377 is silver oxide battery).
No, LR44 (11.6×5.4mm) is significantly larger than LR41 (7.9×3.6mm) and holds less power. If your device requires an LR41 battery, an LR44 battery will not fit or function properly.
357 is equivalent to an LR44. The LR44/357 is much larger than the LR41/392. Using an LR41/392 in place of an LR44/357 would be much lower capacity.
Direct replacements for LR41 include 192, 92A, LR736, 392, AG3, L736, 384, and AG3. These batteries are exact equivalents for the LR41 battery, the only difference being the name.
Depending on the manufacturer, batteries of the same size and capability of LR41 may have several different names, including 392, 192, 92A, L736, 384, LR736, and AG3.
The LR41 battery is an Alkaline button cell battery. It has a standard voltage of 1.5V, and size of 7.9mm in diameter and 3.6mm in height (0.311 × 0.142 inches).
On a battery, "LR" follows the IEC naming system: L = alkaline (chemistry) and R = round (shape), so LR41 means an alkaline, round button cell.
The LR41 battery has a shorter lifespan of around 2-3 years. In watches and thermometers, it usually lasts a few months to one or two years, depending on the brand and device.
Yes, SR41 digital thermometer battery is the long lasting version of the LR41. Therefore, if your thermometer requires a LR41 you can also replace it with a SR41.
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