The 377/376 button cell is a popular manufacturer’s choice of batteries for watches, calculators, toys and talking children’s books. These cells replace both alkaline and silver oxide cells with the names SR66, LR66, AG4, SG4 and SR626SW.
These 1.55V batteries are based on silver oxide chemistry. They typically provide about 26mAh of capacity. The case dimensions are 6.8mm x 2.6mm.
Sort By Sort By
The 377/376 button cell batteries, commonly known as SR66, LR66, AG4, SG4, or SR626SW, are indeed widely used in various small electronic devices such as watches, calculators, toys, and children's books that produce sound. These batteries operate at 1.55 volts and are based on silver oxide chemistry. Their size, with dimensions of 6.8mm x 2.6mm, makes them suitable for compact devices requiring a power source with a small footprint.
Regarding their capacity, these batteries typically provide approximately 26mAh, which determines how much charge they can hold and subsequently deliver over time. This capacity is suitable for devices that don't have high power demands and that can operate efficiently with a smaller power source.
The interchangeable naming conventions—SR66, LR66, AG4, SG4, and SR626SW—might seem confusing, but they all refer to the same type of battery, allowing consumers to find compatible replacements easily.
The use of silver oxide chemistry in these batteries ensures a stable discharge curve and longer shelf life compared to other chemistries, making them a reliable choice for devices that require a steady power supply over time.
These batteries are distinguished by their small size and voltage output, catering specifically to the power needs of small, portable electronic devices. Their compact form factor and reliable performance have solidified their place as a popular choice among manufacturers for various everyday gadgets.
