379 | SR521 Watch Batteries (2024)

FAQs

What battery can replace a 379? ›

379 Watch Battery SR521SW and equivalent button cell batteries - SR521SW, SR63, SR521, SB-AC, 280-59, V379, D379, GP379, 618, S521E.

As for the size difference between 379 and 377, 379 is 5.80mm x 2.15mm and 377 is 6.80mm x 2.60mm, so 379 is both smaller diameter and thinner.

Step 1: Find the battery code: In order to identify the correct replacement battery for your watch you will need to know the battery code. Sometimes this is printed on the back of the watch - as with some Timex watches - but in many cases you will need to open your watch case to see the code on the battery.

Direct replacements for the AG3 include LR41, LR192, 92A, LR736, 192, 384, and AG341. These are all button cells with alkaline chemistry and have a zinc anode with a manganese or carbon-based cathode.

It is commonly used in small watches with few functions. These cells utilize silver oxide chemistry. The case is 5.8mm in diameter and 2.1mm thick. Voltage supplied is 1.55V and the typical capacity is about 15mAh.

397 Watch Battery SR726SW and equivalents button cell batteries SR726SW, SR59, SR726, SB-AL, 280-28, N, V397, D397, 607, S726E, GP397, AG2, 397.

377 Watch Battery SR626SW and equivalent button cell batteries - SR626, SR626W, SR66, D377, V377, AG4, GP377, SB-AW, 377.

377 and 364 are different thickness and not interchangeable and have different output voltages though their diameters are the same they are different.

Energizer 377/376 Watch Batteries (Pack of 5)

A: Far as I can tell it's the size of the battery: 377=6.8mm, 392=7.9mm. Both are Silver Oxide batteries but the 377 is designed for low drain watches and the 392 is designed for higher drain watches.

For the most part, no it doesn't. In a practical sense, the type of battery shouldn't make or break your watch purchase. For instance, if you're shopping for a watch priced around $30, chances are you'll get your money's worth out of an alkaline battery if it burns out at around 2 years.

What is the most common watch battery type? ›

Silver oxide batteries are commonly used in watches as they provide a long-lasting power source. They are known for their stability, high energy density, and consistent voltage output.

In many modern watches, the type of battery is often engraved directly on the rear cover or case back. Look for three digits starting with “3,” such as 371 or 395. There may also be a string of four to seven letters and numbers beginning with “SR,” “LR,” or “CR.” If there's no engraving, look for the model number.

AG3 may refer to: AG3 battery, a common button cell battery for consumer electronics. Heckler & Koch G3, a battle rifle developed in 1956 by Heckler & Koch GmbH. Artificial Girl 3, the third installment in an adult video game series by Illusion.

AGM means absorbent glass mat and refers to the fine glass fiber separator between the positive and negative plates that helps absorb all the battery acid. AGM Batteries are advanced lead-acid batteries. Below, we will expand on that answer, so you know what you need to know to choose the right battery type for you.

You can look in the battery section of the Owner's Manual of the car or truck. If the owner's manual can't be found, look at your existing battery and see what BCI Group Size is already installed. The Group Size is labeled in several places on the battery. Generally on the top and/or on the front of the battery.

A variety of watches, toys, glucose monitors and calculators use the 379 battery.

370 Watch Battery SR920W and equivalent button cell batteries - SR920W, ST69, SR921, SB-BN, 280-51, V370, GP370, 620, S921E.