When you look for an SR621SW battery equivalent, you want your device to work well. The SR621SW battery is a silver oxide coin cell. It is mostly used in watches and small electronics. Using the right SR621SW battery equivalent is important. Even a small change in current can make the battery last half as long. If you pick the wrong battery equivalent, your device might stop working or lose power too fast. Always match the size, voltage, and chemistry of your SR621SW battery. The best way is to check your device’s manual. You can also look inside the battery compartment for the exact SR621SW type and good equivalents.
Key Takeaways
-
Always pick a battery that matches the SR621SW's size and voltage. Make sure it has silver oxide chemistry. This helps your device work well.
-
Silver oxide batteries like SR621SW give steady power. They last longer than alkaline batteries. This makes them best for watches and sensitive electronics.
-
Use trusted brands and check battery codes carefully. This helps you avoid buying the wrong battery. The wrong battery can hurt your device or make it not last as long.
-
Follow safe steps when replacing the battery. Work on a clean surface and use the right tools. Put the battery in the right way. Test your device before you close it.
-
Recycle used SR621SW batteries the right way. This protects the environment. It also keeps your home safe from battery dangers.
SR621SW Battery Equivalent
If you need to change your SR621SW battery, you must get a real battery equivalent. Using the right sr621sw battery equivalent helps your devices work well and stay safe. Many companies make batteries that fit the SR621SW. You should always look at a battery cross-reference chart to make sure it matches. The correct battery equivalent will have the same size, voltage, and chemistry as the one you had before.
Direct Battery Equivalents
There are several direct battery equivalents for the SR621SW. These batteries have the same chemistry and voltage. Their sizes are almost the same. They work in the same devices and give similar results. Here is a table with the top sr621sw battery equivalents from big brands:
| Manufacturer | Model | Voltage | Chemistry | Capacity (mAh) | Dimensions (Diameter x Height mm) | Typical Applications |
|---|---|---|---|---|---|---|
| Energizer | 364 | 1.55 V | Silver Oxide | ~15 | 6.8 x 2.6 | Watches, calculators, small devices |
| Maxell | SR621SW | 1.55 V | Silver Oxide | ~18 | 6.8 x 2.6 | Watches, electronic devices |
| Renata | CR621 | 1.55 V | Silver Oxide | ~18 | 6.8 x 2.6 | Devices requiring SR621SW equivalent |
| Sony | SR621W | 1.55 V | Silver Oxide | ~18 | 6.8 x 2.6 | Watches, small electronics |
| Panasonic | SR621SW | 1.55 V | Silver Oxide | Similar | Similar | Similar applications |
| Duracell | 364/363 | 1.55 V | Silver Oxide | Similar | Similar | Similar applications |
| Varta | V364 | 1.55 V | Silver Oxide | Similar | Similar | Similar applications |
All these battery equivalents use silver oxide chemistry and have a voltage of 1.55V. This chemistry gives a steady voltage. That is important for watches and other devices that need to be exact. The sr621sw battery is about 6.8 mm wide and 2.1 mm tall. Always make sure your new battery matches these numbers.
Tip: Always pick a battery equivalent with the same chemistry and voltage as your old SR621SW battery. This helps your device last longer and work better.
Other Compatible Codes
You might see that the SR621SW battery has many other codes that also work. These codes come from different brands and battery charts. They help you find the right battery even if your old battery has a different code. Here is a list of other codes that work as sr621sw battery equivalents:
| Alternative Battery Codes Compatible with SR621SW |
|---|
| 164, 364, CX60, D364, E364, GP364, S621E, SA621SW, SB-DG, SB-AG, SG1, SP364, SR60, SR60L, SR620SW, SR621, SR621SW, SR621W, V364, V531, W1V, 364A, 364B |
You may also see the AG1 battery as a replacement. The AG1 battery is an alkaline type. It fits the same devices but does not last as long as a silver oxide battery. Use the AG1 battery only if you cannot find a silver oxide sr621sw battery equivalent.
A battery cross-reference chart from top brands will show you all the codes that match the SR621SW. For example, you may see codes like SB-AG/DG, SG1, AG1, S14, 602, D364, and V364. These codes all point to batteries that fit the same size and voltage.
Note: Always check the width (6.8 mm), height (2.1 mm), and voltage (1.55V) when picking a battery equivalent. If you use a battery that does not match these numbers, your device may not work right.
The best sr621sw battery equivalents keep your devices working well. When you use the right sr621sw battery equivalent, you protect your device and avoid problems like short battery life or your device not working. Always check the battery chart and your device’s manual before you buy a new battery.
SR621SW Battery Overview
Specifications
The sr621sw battery is known for being small and working well. It uses silver oxide chemistry, so it gives steady power and lasts a long time. The sr621sw battery has a voltage of 1.55V. Its width is 6.8 mm, and its height is 2.0 mm. These sizes help it fit in many tiny devices. The battery’s capacity is usually between 18 mAh and 23 mAh, but this can change with the brand. Most sr621sw batteries can last more than 5 years on the shelf. This is because silver oxide button cells lose power slowly and hold a lot of energy.
Here is a table with the main details:
| Specification | Details |
|---|---|
| Chemical Composition | Silver Oxide |
| Nominal Voltage | 1.55 V |
| Diameter | 6.8 mm |
| Height | 2.0 mm |
| Typical Capacity | 18–23 mAh |
| Shelf Life | 5+ years |
Tip: The sr621sw battery has lots of energy and loses power slowly. This helps your devices work longer and better.
Because it is small, this battery fits in tight places. You can count on the sr621sw cell to give steady power to sensitive electronics.
Typical Uses
You can find the sr621sw battery in many different devices. Its small size and strong power make it great for tiny electronics. The most common use is in watches, which need steady power to keep time right. You will also see this battery in calculators, cameras, and clocks. Many medical tools, like glucose meters and hearing aids, use the sr621sw battery because it works well and is reliable.
Here are some ways people use the sr621sw battery:
-
Watches (digital and analog)
-
Calculators and small electronic gadgets
-
Medical tools like glucose meters and hearing aids
-
Fitness trackers and wearable tech
-
Remote controls and key fobs
-
Electronic toys and handheld games
-
Backup power for sensors and small accessories
The sr621sw battery works in lots of consumer electronics. Because it holds a lot of energy and loses power slowly, you do not need to change it often. You can trust this battery for both daily and special uses. Button batteries like the sr621sw are important for many new devices that need small and strong power sources.
Comparing Battery Equivalents
Silver Oxide vs. Alkaline
When you pick a battery, you want it to last long and work well. Silver oxide batteries, like the SR621SW, give steady power. This means your device works the same until the battery is almost empty. Alkaline batteries, like AG1 or LR621, look the same but do not work as well in devices that need to be exact.
Here is a simple comparison:
| Feature | Silver Oxide (SR621SW) | Alkaline (LR621/AG1) |
|---|---|---|
| Nominal Voltage | 1.55 V | 1.5 V |
| Voltage Stability | Stays steady until almost empty | Drops fast |
| Capacity Range | 18-23 mAh | 15-20 mAh |
| Self-Discharge Rate | Low | Higher |
| Lifespan & Reliability | Lasts longer, more reliable | Shorter life, less reliable |
| Cost | Costs a little more | Costs less |
| Long Shelf Life | Yes | Yes, but not as good |
Silver oxide batteries give better power and last longer. They cost a bit more, but help your watch or medical device work well. Alkaline batteries lose power faster and can make your device stop sooner.
Tip: For watches and devices that need to be exact, always use silver oxide batteries. They give steady power and work better.
Differences and Interchangeability
Not every battery that fits will work right. Some batteries, like SR626SW or 377, are often mixed up with SR621SW equivalents. These have different heights or chemistry. If you use a battery that is too thick, like SR626SW, it might not fit. This can make your device turn off by itself. If you use an alkaline battery instead of silver oxide, your device may not last as long or work as well.
-
Silver oxide batteries last longer and work better.
-
Alkaline batteries are only for emergencies. Do not use them for watches or medical devices.
-
Using the wrong battery can make your device lose power, work badly, or even break.
Always check the size, voltage, and chemistry before buying a new battery. This helps your device work well and keeps it safe.
Replacing the SR621SW Battery
Choosing the Right Equivalent
It is important to pick the right sr621sw battery equivalent. This helps your device work well and last longer. First, look at the label or code on your old battery. If you do not see SR621SW, check for codes like 364 or AG1. You can use online charts to find a matching battery. Always measure the battery to make sure it is 6.8 mm wide and 2.1 mm tall. Make sure the voltage is 1.55V. Good brands are important, too. Brands like LiCB and SKOANBE test their batteries and have safety certificates. These brands help your device stay safe and work longer.
| Parameter | Details |
|---|---|
| Dimensions | 6.8 mm diameter x 2.1 mm height |
| Silver Oxide Equivalents | SR621, SR621SW, SR60, 164, 364, SG1, AG1 |
| Alkaline Equivalents | LR621, LR60, AG1 |
🛒 If you want to buy sr621sw equivalents, look for trusted online stores or local shops that sell safe batteries.
Replacement Steps
You can change the sr621sw battery by following these easy steps: First, set up a clean, flat area with a soft cloth. Next, check what kind of case back your device has and get the right tool. Open the case back slowly so you do not break anything. Use anti-static tweezers to take out the old battery. Remember the battery’s model and which way it goes. Put the new sr621sw battery in the same spot. Make sure the plus and minus sides match and the contacts are clean. Test your device before you close the case back. Close the case back tightly and check that any gasket is in place.
🛠️ Always read your device manual for the best way to change the battery.
Safety Tips
-
Only use sr621sw batteries in devices that need them.
-
Be gentle with batteries so they do not leak or break.
-
Keep batteries in a cool, dry place away from the sun.
-
Do not mix different battery types in one device.
-
Take used batteries to recycling centers to protect the environment.
-
Keep batteries away from kids and pets.
-
If you want to know where to buy sr621sw equivalents, pick stores that recycle batteries.
Silver oxide batteries like sr621sw do not have mercury, but you should still recycle them. Recycling keeps your home and the earth safe.
Picking the right SR621SW equivalent makes your device last longer. It also helps your device work better. Silver oxide batteries from good brands give steady power. They also help your device perform well.
-
Make sure the size, voltage, and chemistry are the same.
-
Keep batteries in a cool, dry spot and look for leaks.
-
Do not use different brands or types in one device.
If you are not sure, ask someone who knows or check a cross-reference chart. This will help keep your device safe and working right.
FAQ
What is the best SR621SW battery equivalent for my watch?
You should use a silver oxide battery with the same size and voltage. The 364, SR621SW, and V364 are top choices. These batteries give steady power and last longer in watches.
Can I use an alkaline battery instead of a silver oxide SR621SW?
You can use an alkaline battery like AG1 in an emergency. However, it will not last as long. Silver oxide batteries work better and keep your device running smoothly.
How do I know if a battery will fit my device?
Check the battery’s size and voltage. The SR621SW measures 6.8 mm wide and 2.1 mm tall. Look at your device’s manual or battery compartment for the correct code.
Are all SR621SW equivalents safe to use?
Most silver oxide equivalents are safe if you match the size and voltage. Always buy from trusted brands. Avoid mixing different battery types in one device.
Where should I dispose of used SR621SW batteries?
Take used batteries to a recycling center or a store that collects batteries. Do not throw them in the trash. Recycling helps protect the environment.
Written by Jack Elliott from AIChipLink.
AIChipLink, one of the fastest-growing global independent electronic components distributors in the world, offers millions of products from thousands of manufacturers, and many of our in-stock parts is available to ship same day.
We mainly source and distribute integrated circuit (IC) products of brands such as Broadcom, Microchip, Texas Instruments, Infineon, NXP, Analog Devices, Qualcomm, Intel, etc., which are widely used in communication & network, telecom, industrial control, new energy and automotive electronics.
Empowered by AI, Linked to the Future. Get started on AIChipLink.com and submit your RFQ online today!
