What is the SR621SW battery equivalent?

What is the SR621SW Battery?

Common labels for silver oxide batteries are SR621, SR621SW, SR60, 164,364, SG1, and AG1. It has a nominal voltage of 1.55 volts and a cut-off voltage of 1.2 volts. Its voltage will appear in the following two situations with the use of the battery: when the battery is in use, the voltage will drop slightly and remain constant during use. When the battery is fully discharged, the voltage drops sharply and falls below 1.2 volts. At this point, the battery is considered fully discharged. The nominal capacity of the SR621, SR621SW, SR60, 164, 364, SG1 batteries, is within the 18-23 mAh range.

SR621SW battery, just like alkaline batteries has a higher capacity, stable/constant operating voltage, and higher cut-off voltage. They also have a longer shelf life and are slightly more costly than other types of batteries. Actual performance will vary depending on temperature, discharge current, and battery load.

Electronic devices such as wristwatches, remote controls, keys, and remote keys use SR621, SR621SW, SR60, 164, 364, SG1 equivalents silver-oxide batteries. They aren't as inexpensive as alkaline batteries but the price difference is negligible. The use of SR621SW and equivalent silver-oxide battery is recommended for children's toys and other 'electrical' devices.

SR621SW Battery, as well as 364, AG1, LR621 Frequently Asked Questions(FAQ)?

These are the most frequently asked questions regarding 364, AG1, LR621, SR621SW, and similar batteries:

What is the SR621SW battery equivalent? What watch battery is equivalent to SR621SW?

The 1.55V silver-oxide SR621SW is a battery with physical dimensions of 6.8x2.1mm. Any silver oxide 1.55V 6.8x2.1mm battery can be purchased from reputable brands such as SR621, SR621W, SR60, 164, 364, SG1. It can be used in place of SR621SW for most operations.

In an emergency, an alkaline 1.5V 6.8x2.1mm battery can be replaced by the silver-oxide SR621SW battery. However, it has a shorter battery life and may have issues due to the unstable output voltage.

Is 377 battery the same as SR621SW?

No.

377 is a silver-oxide 6.8x2.6mm coin cell battery, while SR621SW is a silver-oxide 6.8 x 2.1mm battery.

What size is the SR621SW battery?

The SR621SW is a 6.8 x 2.1 mm silver-oxide battery.

Are 377 and 364 batteries interchangeable? Can I use a 364 battery instead of 377?

NO.

They are not identical, despite having the same chemistry (silver oxide) as well as very similar dimensions. The size of 364 is 6.8x2.1mm. The size of 377 is 6.8x2.6mm. Because of the identical height and diameter, 364 batteries can be placed in the 377 compartments. Sometimes, you may even need to do the reverse. However, 364 batteries can be placed in the 377 compartment and contact issues could prevent reliable operation. The 377 battery has a larger capacity, while 364 batteries have a smaller one. Due to the difference in height, 377 batteries may be placed in the compartment for 364 batteries.

Other questions about SR621SW Battery can be answered here:

SR621SW Battery: What is the SR621SW Battery Equivalent?

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