377 Battery Equivalent, Voltage, Size, Life & Uses

Hi, guys welcome to the new tutorial. In this post, we will discuss 377 Batteries. The 377 or 376-button cell battery is used for different electronic devices such as watches, calculators, and children’s toys. These batteries can be replaced with alkaline and silver oxide cells such as SR66, LR66, AG4, SG4, and SR626SW.

These batteries come with silver oxide chemistry and the voltage is 1.55 volts. Their capacity is about 26mAh and their dimensions are 6.8mm x 2.6mm. 377 battery also called SR626SW battery. In this post, we will discuss different parameters of 377 batteries like equivalent, voltage, size, operating life, uses, and some other details

What is a 377 Battery?

• It is a small and non-rechargeable battery. It comes with 1.55 volts and 28mAh capacity, 6.8 mm in diameter and 2.6 mm in height and 0.4 gram weight

• It comes with a shelf life of four to six years for storing at room temperature and one to two years of working life for high temperatures.
• Its capacity is double that alkaline battery. As these battery is less weight comes with high energy to weight ration.  Its prices is high due to use of silver.
• It comes with cathode of silver oxide and anode made with zinc. These batteries use alkaline electrolyte  such as potassium hydroxide, so their working is compared with  alkaline batteries.
• Their main features is that can adapt high and low discharge devices.
• It also has stable output during working life due to multi drain technology.

 

377 Battery Equivalent

V377, E377, E377A, E377CA376, 377BP, GP377, D377, 377A, and 377X, commonly used replacement of 377 batteries.

Some other equivalents of 377 batteries are SR626, AG4, 606, LR626, SB-AW, SR626SW, SR66, LR66, SR628SW, and GP177.

377 Battery Equivalent Chart

Battery Type	Nominal Voltage	Height (mm)	Diameter (mm)
377	1.55V	2.6	6.8 mm
SR626SW	1.55V	2.6	6.8 mm
AG4	1.55V	2.6	6.8 mm
LR626	1.55V	2.6	6.8 mm
177	1.55V	2.6	6.8 mm
376	1.55V	2.6	6.8 mm
565	1.55V	2.6	6.8 mm

Difference Between 376 and 377 Battery

• Both have different capacities, 377 battery capacity is 16mAh and 376 battery is 10mAh.
• They have the same voltage which is 1.55 volts and their height and diameters are also same that are 2.6mm and 6.8 mm respetively.

Battery Type	Nominal Voltage	Height (mm)	Capacity (mAh)	Diameter (mm)
376	1.55V	2.6	10	6.8
377	1.55V	2.6	16	6.8

377 Batteries vs 377A Batteries

• The 377A is an alkaline version of the 377 battery. Leaving some certain devices, both batteries can interchange.
• the price of 377 is higher but works longer.
• Their dimensions are 6.8mm but both have different heights that is  3.05 mm (377A) and  2.6 mm (377) respectively.
• The capacity of 377A is 23mAh and 377 is 16mAh.

Watch battery 377/376 equivalent

The 377/376 button cell is best to use for calculators batteries and other small devices. They are replacements of alkaline and silver oxide cells  SG4 SR66, LR66, AG4,  and SR626SW. These 1.55V batteries have silver oxide chemistry.

377 Battery Specifications

• It comes in a compact and round shape.
• its chemistry is silver oxide.
• The nominal voltage is 1.55 volts
• The diameter is 6.8mm and the thickness is 2.6mm
• it has 0.40-gram weight and its operating temperature is -10 – +60 °C

What are the Uses of 377 Battery?

• 377 battery is a coin cell. It is best to use for portable devices. The high and low drain features of batteries make them best to use for devices that are used continuously.
• It is commonly used in different medical devices such as photoelectric exposure meters,  hearing aids, digital thermometers, blood pressure cuffs, glucometers, heart-rate monitors, etc
• It is also used in electronic devices and projects such as small electronic toys,  watches, keyless remote entry systems,  calculators, pagers, etc

How to Prolong the 377 Battery Life?

• Store the battery properly at the required temperature.
• Use the battery for supported devices and accurately.
• Off the device if it is not in use will increase battery working life.

What size is Duracell 377?

Brand:	Duracell
Model:	377
Height:	.10″ 2.6 mm
377 Battery Volume:	1.55V
Capacity:	28 mAh

What is the difference between Renata 377 and 376?

The 376 battery is a non-rechargeable silver oxide high-drain battery and the 377 is a non-rechargeable silver oxide low-drain battery. Their stable voltage makes them useful for watches.

377/376 Watch Batteries

The 377/376 button cell is a famous battery used for watches, calculators, toys, and children’s books. These batteries replace both alkaline and silver oxide batteries which are SR66, SG4, LR66, AG4, and SR626SW. These 1.55-volt batteries are based on silver oxide chemistry. Their capacity is about 26mAh. They come with dimensions of 6.8mm x 2.6mm.

Can I use a 364 battery instead of a 377?

The 264 battery comes with dimensions of 6.8 x 2.1 mm and is not supported with the 377 battery has dimensions of 6.8 x 2.6 mm. Some watches and other devices that accept 377 batteries also work with 364 batteries but a problem with contacts also exists.

What battery is smaller than a 377?

SR521SW (5.8 x 2.1 mm), SR512SW (5.8 x 1.3 mm), SR416SW battery (4.8 x 1.6 mm), SR516SW (5.8 x 1.6 mm),  SR527SW (5.8 x 2.7 mm), SR616SW (6.8 x 1.65 mm) and SR621SW (6.8 x 2.1 mm) batteries are smaller size battery 377 battery.

What does SW mean on a battery?

If the battery code after digits comes with S then it is a battery having sodium hydroxide electrolyte and the battery code after digits has W then the battery comes with IEC 60086-3 watch batteries standard. Most manufacturers of 626 batteries come with silver-oxide batteries as SR626SW meaning that these batteries are silver-oxide batteries for watches, and if they are best for watches then are best for electronic devices.

How do you know which battery to buy for a watch?

Check documentation of the watch, or the site of watch manufacturers using the search option and check watch details.

Are 357 and 377 batteries the same?

357 batteries have 11.6 x 5.4 mm dimensions, and 377 batteries are 6.8 x 2.6 mm batteries – both have different sizes, capacities, and features that make them compatible.

Are 626 and 377 batteries equivalent?

If 626 batteries are silver oxide batteries, both are about compatible batteries.

 Difference between a silver oxide battery and an alkaline watch battery?

Silver oxide batteries have high energy density and featues to put out a high current for their size. This battery works for a longer duration as compared to an alkaline battery. It cannot be used for battery chargers.

Alkaline batteries are used mostly and watch batteries are no exception. They come with a shorter operating life than silve oxide batteries, so they work for longer. They are less costly to manufacture, the only issue with alkaline watch cells is that they can leak and casues corrosion and damage to the watch.

What is 377 battery equal to?

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

Are AG4 and 377 batteries the same?

AG1 and AG4 are alkaline, and 364 and 377 are silver oxide batteries that have a high cost but work for a longer duration. AG1 and AG have the same dia which is 6.8mm but AG4 has a thickness of about 2.67mm and AG1’s thickness is  2.25mm.

Is 377 equivalent to LR41?

These batteries are equivalent to LR41 batteries. The main difference is the name. The 377 is a silver oxide battery. both have same uses but silver oxide works longer.

What is 377 voltage?

1.55 Volts.

What is the difference between 377 and 379 batteries?

379 is 5.80mm x 2.15mm and 377 is 6.80mm x 2.60mm, so 379 is both smaller in diameter and thinner.

Can I use a 371 battery instead of 370?

As 370 and 371 have the same physical structure, the 370 is made for high drain uses and 371 for low drain uses.

What are number 7 batteries?

They are known as 7 batteries in China and their name if defined by Burgass battery company as AAA batteries, Number 7. The AAA battery is a single cell that has dimensions 10.5 mm (0.41 in) in diameter and 44.5 mm (1.75 in) in length with a positive terminal button that is about 0.8 mm (0.031 in).

What is the difference between 377 and 392 battery?

Their sizes are 377=6.8mm, 392=7.9mm. These are silver oxide batteries but 377 is made for low-drain watches and 392 is used for higher-drain watches.

SR626SW vs. SR621SW Batteries

• SR626SW battery: (D x H) 6.8 x 2.6 mm, 1.55V, 25-27 mAh
• SR621SW battery: (D x H) 6.8 x 2.1 mm, 1.55V, 18-23 mAh.

Read Also:

• Key Knowledge of AAA Battery Voltage, Capacity, Size & Dimensions
• 2024 Comprehensive Guide on 3s lipo Battery & its Applications, Pros & Cons
• What is a Group 24 Battery? Dimensions, Features, and Recommendations
• CR123 vs CR123A Batteries: Which Ones Are Better? 2024 Guide
• SR621SW Battery Equivalent: AG1, 364/363, 377 IR621 2023 Guide
• Who Makes/Sells Autocraft Gold Battery

FAQs

1. Can we replace the 377 battery with a different battery type?

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

5. Is stored in a 377 battery in a refrigerator?

No, it can damage the battery so storing them at room temperature which is best for batteries.

Are 377 batteries and 377A batteries the same?

These two batteries are different in their chemistry. 377 comes with a silver oxide base and 377A has an alkaline base. But these two batteries can be used in different applications as interchangeable