SR621SW Battery Equivalent Guide: Which Are Your Options?

Button cells with silver oxide as their battery chemistry are quite popular. A good example is the SR621SW battery, which stands out for being versatile, compact, and reliable. Expect consistent voltage and performance with such a battery, depending on where you use it. Now, we also want to see if there is an SR621SW battery equivalent and when you would choose it.

AG1 Watch Battery Equivalent | SR621SW/V364/LR621/364/ LR60 Battery Equivalent

What is an SR621SW Battery?

SR621SW Battery Dimensions

The SR621SW battery is a small button cell battery known for its usability in small electronic devices, including watches. Depending on the manufacturer, this silver oxide battery is also known as an SG1 or 364 battery. Its nominal voltage of 1.55V offers stable power delivery to the device it is set up in.

You might be wondering, what does the code SR621SW mean?

The SR indicates the battery chemistry, which in this case is silver oxide. This type of battery chemistry is suitable for low self-discharge and offers a long shelf life.

The number 621 refers to the battery’s dimensions. In this case, it is approximately 6.8mm in diameter and 2.15 mm in height.

The SW part stands for silver oxide, low drain. This helps you see that the battery is designed for applications that need low current. This includes watches, which need such stable power for a long time.

SR621SW Battery Technical Specifications

Before we can look at the SR621SW equivalent battery, let us first understand the technical specifications you can expect with such a battery type below.

Common Applications of SR621SW Battery

You are likely to find the SR621SW or Sony battery SR621SW equivalent in applications such as:

• Watches, both analog and digital, often utilize this type of battery
• Medical devices such as hearing aids and medical instruments rely on such batteries for good performance
• Remote controls and key fobs could use such batteries thanks to their compact nature
• The battery is also popular for cameras and calculators. So long as it is a small device that needs a reliable power source, this could be it.

Top SR621SW Battery Equivalents

There are multiple options for you as the SR621SW battery equivalents. Below are some of the top choices we can recommend.

• 364: This is a battery designation that brands such as Duracell, Renata, Energizer, and other top brands use. It is a good equivalent if you want batteries for watches or small electronics.
• D364: This is the battery equivalent to the SR621SW battery from Duracell. It features the same size and chemistry. You will find it fully interchangeable with the SR621SW battery.
• SG1 and SR60 are another way of naming the SR621SW battery. They are mostly found on generic kits with less known brands. However, when you check the datasheet, you will see they have the same technical features as the SR621SW.

How to Find the Proper SR621SW Battery Equivalent For the Device

You cannot just take any battery and think it will be a good SR621SW battery equivalent. It is necessary to do your research. Here is how you do it.

1. Before choosing the Seiko SR621SW battery equivalent, make sure it has a label indicating it is an SR621SW battery. This will help you quickly determine whether the battery is compatible.
2. If the SR621SW battery code is not available, consider the other alternative battery codes, such as the 364 and AG1.
3. Online resources such as cross-reference charts are key in helping you find the right equivalent batteries. There are some websites that are also built with such functionalities to help you find battery equivalents with ease.
4. Another possible way of determining if the Sony battery SR621SW equivalentis the right one is by measuring the battery dimensions. The SR621SW battery has a 6.8mm width and 2.1mm height. If the equivalent has such dimensions, it should fit in the battery compartment easily.
5. The battery’s voltage is also a good indicator of whether it is a good equivalent. The SR621SW battery has a voltage of 1.55V, so the equivalent battery should be the same. The batteries’ voltage is indicated even on the packaging, making it easier to determine if they are a good alternative.

Steps for Replacing the SR621SW Battery

It is usually easy to change the battery in a device and replace it with a good equivalent. We can consider a watch as an example to see how you can achieve this.

Start by removing the back of your watch to reach the battery. It can be a simple cover that you use your nail to open, or it might need a screwdriver. Whichever the case, make sure to use the right tools.

Once you have opened the cover, remove the old battery from the compartment. Most of the time, a backing plate holds the battery. Just move it aside to allow the battery to pop from its position.

Go ahead and insert the watch battery equivalent of SR621SW in the battery compartment. Make sure you get the polarity right. This means you have to ensure the positive side is facing in the same direction as the battery you just removed.

Reassemble the battery cover and close the watch with its cover. Test to see if the battery is working properly.

Where to Buy SR621SW Equivalents

Since you know there are options such as the Sony or Maxell SR621SW battery equivalents; you now want to get them. Well, there are various ways of getting yourself these equivalent batteries. First, simply walk into an electronics shop in your area and ask for the battery. They are quite common, so finding them should not be hard.

The other option is to consider shopping online on stores such as Amazon, eBay, and others. Online platforms usually make it easier for you to get quality batteries and discounts sometimes.

Conclusion

We have seen a number of options when seeking the SR621SW battery equivalent. Always make sure you get buying from a top brand even if it is an equivalent. Examples include Energizer, Duracell, Renata, Varta, and others. Also, look at the battery datasheet to have a better understanding of what you are getting. As for the installation, it should be easy to do so by following our guide above to ensure that the battery works correctly.