The SR626SW, also known as 377, AG4, or LR626, is a popular button cell battery commonly used in small electronic devices like watches, calculators, key fobs, and various gadgets. It is essential to know about its equivalents, specifications, and suitable replacements when considering this type of battery.
Specifications
- Chemistry: Silver Oxide (AgO)
- Voltage: 1.55 Volts
- Diameter: Approximately 6.8 mm
- Height: Approximately 2.6 mm
- Capacity: Around 20-30 mAh
Key Features
- Stable Voltage: The steady 1.55 volts output makes the SR626SW ideal for devices that require consistent voltage levels.
- Long Shelf Life: Silver oxide batteries typically have a long shelf life, making them suitable for devices that are not used frequently.
- Reliable Performance: The SR626SW is known for its stable performance over its lifespan, providing consistent power to various devices.
| Battery Datasheet | Capacity | Operating Temperature | Annual Self-Discharge Rate | Discharge Current |
| Energizer 377/376 | 24 mAh, 47kΩ down to 1.2V @21°C | - | ~2% @20°C | 31μA @1.46V 47kΩ @21°C |
| Maxell SR626W | 28 mA | -10°C to +60°C | - | 50μA |
| muRata SR626 | 28 mAh, 30kΩ down to 1.2V @23°C | -10°C to +60°C | - | 50μA @1.55V 30kΩ @23°C |
| Renata 376 High Drain | 27 mAh, 34k8Ω down to 1.2V @20°C | -10°C to +60°C | <10% @20°C | 44.5μA @1.55V 34k8Ω @20°C |
| Renata 377 Low Drain | 24 mAh, 34k8Ω down to 0.9V @20°C | -10°C to +60°C | <5% @20°C | 43.7μA @1.55V 34k8Ω @20°C |
| Varta V 377 MF | 21 mAh, 47kΩ down to 1.2V @20°C | 0°C to +60°C | <10% @20°C | - |
Equivalent and Replacements
When looking for equivalents or replacements for SR626SW batteries, it's crucial to find alternatives that match the same specifications to ensure proper functioning of the device. Here are some common equivalents for the SR626SW battery:
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377 Battery: This is one of the most commonly used alternatives for the SR626SW battery. The 377 battery has the same voltage and dimensions as the SR626SW, making it a suitable replacement.
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AG4 Battery: The AG4 battery is another equivalent for the SR626SW. It shares the same size and voltage characteristics, making it a compatible substitute.
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LR626 Battery: The LR626 battery is another name for the SR626SW, so if you see LR626 listed as a replacement, it should work effectively in devices that require an SR626SW.
Considerations for Replacement
- Voltage: Ensure that the replacement battery has the same voltage as the SR626SW (1.55 volts) to prevent damage to the device.
- Size: Check the dimensions of the replacement battery to ensure it fits properly in the device's battery compartment.
- Quality: Opt for reputable brands when purchasing replacement batteries to ensure quality and reliability.
- Shelf Life: Consider the shelf life of the replacement battery, especially if you are buying in bulk or for occasional use devices.
Safety Notes
- Proper Disposal: Like all batteries, SR626SW batteries contain materials that can be harmful to the environment. Properly dispose of used batteries at designated recycling centers.
- Keep Away from Children: Button cell batteries can be a choking hazard, so keep them away from small children and pets.
- Avoid Mixing: Do not mix old and new batteries or different battery types in the same device to prevent leakage or other issues.
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DataSheet
By following these guidelines and understanding the equivalents, specifications, and replacements for the SR626SW battery, you can ensure that your devices continue to function reliably and safely with the appropriate power source.
