SR41 vs LR41 battery: Differences, Equivalents, and Replacements

When replacing the battery of a watch or other small device, do you know whether to choose the LR41 or SR41 battery? These two similar looking button batteries have significant differences in chemical composition, performance and applicable equipment. Selecting the wrong battery may affect the normal use of the device. This article will help you understand the key differences between the SR41 and LR41, alternative batteries, and compatibility to ensure you choose the most suitable battery.

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• Difference Between SR41 and LR41 Battery
• Interchangeability of SR41 and LR41
• SR41 Battery Cross Reference
• How do I replace SR41 and LR41 batteries?

Difference Between SR41 and LR41 Battery

The SR41 and LR41, while identical in appearance and size (7.9mm in diameter and 3.6mm in thickness), differ significantly in chemical composition and performance.

Chemical composition and voltage:

With a silver oxide chemical composition and a voltage of 1.55V, the SR41 has a higher energy density and a stable voltage output for high performance equipment.

LR41 uses alkaline chemical composition, voltage is 1.5V, poor stability, short service life, suitable for low-power equipment.

Battery life:

The SR41 has a long life, lasting three years or more, and is especially suitable for devices that require a stable voltage output for a long time.

LR41 life is one year, and after a long time of use, the voltage will gradually drop, affecting the performance of the equipment.

Price:

The SR41 is relatively expensive because of its high performance.

The LR41 is lower cost and inexpensive, but has shorter performance and life span.

Interchangeability of SR41 and LR41

Although the LR41 SR41 battery are similar in appearance and voltage, their performance differences mean that they are not used interchangeably in all devices. When replacing a battery, check whether LR41 is supported by the device manual. If the device specifies the SR41, select this model to ensure device stability and reliability.

High-precision equipment: For equipment with high voltage requirements, such as watches and medical equipment, the use of LR41 can cause voltage instability, which can affect the operation of the equipment or shorten its service life. Therefore, in these devices, SR41 is recommended.

Low-power devices: such as calculators and small power tools, the LR41 may be sufficient because these devices require relatively low voltage stability.

SR41 Battery Cross Reference

If you need to replace the SR41 battery or look for its substitute, the following are common cross-references:

SR41 battery Equivalent

LR41 (not exactly matched, suitable for low power devices)

AG3

384

392

392B

SR41W

What battery replaces SR41

Duracell 384 and 392

Rayovac SR41 and Eveready 392

When choosing a replacement battery:

Ensure that the size, voltage, and chemical properties of the battery match the SR41 to ensure proper operation of the device.

SR41 battery cross reference chart

How do I replace SR41 and LR41 batteries?

When replacement battery for lr41 or sr41, perform the following steps to ensure safety and correctness.

Tools required

Small flat head screwdriver or tweezers (if needed)

Devices whose batteries need to be replaced

Steps

1. Shut down the device

Before replacing the battery, ensure that the device is turned off to avoid short circuit or damage.

2. Open the battery compartment

If the battery compartment has screws, use a small screwdriver to remove the screws. If it is a snap-in/slide-out battery compartment, gently pry or slide the battery cover off.

3. Take out the old battery

Pay attention to the battery installation direction, usually "+" face up. If the battery is difficult to remove, you can use tweezers or gently tap the device to help remove the battery.

4. Install a new battery

Make sure the new battery (LR41 or SR41) is properly installed with the "+" facing up. If the device has a spring or specific battery holder, make sure the battery is fully embedded.

5. Close the battery compartment again

Put the battery compartment cover back in place and make sure it is secured. Use screws to tighten if necessary.

6. Check the device

Turn on the device and verify that the new battery is working properly.

Tip

When handling the battery, try to avoid direct contact with the contact of the battery with your fingers, so as to avoid the oil on the skin affecting the battery performance.

Recycle old batteries correctly, do not discard them at will, and should be handled through professional recycling channels.

When selecting a battery, be sure to decide according to the battery requirements of the device. Even though lr41 vs sr41 battery are similar in size and voltage, their chemical composition and performance differences can affect the stability and service life of the device. For devices requiring high accuracy and stable voltage (such as watches, medical devices), SR41 batteries are recommended. If the device supports LR41, it can work normally when used, but the performance and life are shorter. Always ensure that the battery matches the device requirements to avoid device problems due to incorrect replacement.