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The SR626SW battery is a commonly used small round battery, often referred to as a button or watch battery. It is widely used in watches, small electronic devices, calculators, and other portable devices. This is a 1.55V silver oxide battery, favored for its stable voltage and long-term power supply.
The main function of the SR626SW battery is to provide stable voltage and long-lasting energy supply, which is particularly important for small electronic devices that need continuous operation. Silver oxide batteries have a high energy density, allowing them to provide a longer lifespan compared to other types of batteries with the same volume.
The SR626SW battery has specific physical specifications, usually measuring 6.8mm in diameter and 2.6mm in height. This compact size makes it very suitable for devices that require a compact battery solution.
SR626SW Specifications
Silver oxide batteries, particularly the SR626SW model, are considered efficient battery options due to their stable discharge curve and longer battery life. These batteries are commonly used in watches and other precision devices that require small batteries. The table below displays the most popular 6.8 x 2.6mm silver oxide batteries on the market, comparing their main features and technical specifications.
The SR626SW battery has several equivalent models, including the Sure, here's the list of battery codes shuffled:SR262SW, 377A, LR626, GP377, SR66, E377, L626, SR66SW, 377, 377S, AG4, SR6265W, GP177, CR626SW, V377, E377CA, 377BA, D377, 280-39, 606, AG4/377, SB-AW, SR626, 377 battery, LR626SW, SR628SW, 377/376, SG4, BA, E377A, AG-4, S626E, 377X, LR66, AG04, etc. Although these batteries may have slightly different chemical compositions and voltages, they are similar in physical size and function and can be used interchangeably.
LR626 is the alkaline version of SR626, usually with a slightly lower voltage (about 1.5V) and lower cost. Silver oxide batteries, such as the SR626SW, do, however, typically offer a more consistent voltage and a longer lifespan.The following chart shows and compares the alkaline and silver oxide types of 6.8 x 2.6mm button batteries used to replace SR626SW watch batteries:
As one can see,LR626/SR626 batteries have two different chemical compositions:
The initial voltage of alkaline LR66/LR626 batteries is 1.5 volts, but it quickly drops to 1.0 volts as usage time extends. At such a low voltage, the operation of sensitive electronic devices may be affected, leading to reduced reliability.
Alkaline AG4/LR66/LR626 batteries experience a 30% reduction in capacity when the voltage drops to 1.0 volts and a 50% reduction at 1.2 volts. Silver oxide SR626SW batteries, on the other hand, have a nominal voltage of 1.55 volts and discharge at a somewhat steady rate.
These batteries have a greater capacity, significantly extending the life of multiple devices with a single replacement.
It's important to remember that some silver oxide SR626 batteries are made especially for high current consumption gadgets, including digital watches and other comparable electronics. Other SR626 batteries are made to use less current, making them better suited for thermometers, analog watches, digital watches without alarms, and LEDs, among other devices.
While SR626SW and LR66 batteries are relatively safe to use, their small size and attractive appearance pose a risk of being swallowed by children. Special care should be taken when using and storing these types of batteries, and they should be kept out of reach of children. Accidental ingestion of an SR626SW or comparable battery may result in chemical burns from the electrolytic activity.
This is usually due to short-circuiting caused by bodily fluids.
In such cases, you should immediately go to the nearest emergency room or contact a veterinarian, and explain the situation in detail. Be sure to follow the guidance and advice of medical professionals.
Download the Seiko Instruments SR626SW factory documentation and datasheets.
Datasheets : SR626SW Datasheet
MSDS Material Safety Datasheet : SR Battery SDS
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