These button batteries, also known as #177, #376, #377, #565, #377A, #AG4, #D377, #G4, #GA4, #GP377, #L626, #LR626, #LR66, #SR626, #SR626SW, #SR66, #V377, provide excellent continuous power for your devices. With a low self-discharge rate, they can be stored for longer periods. Boasting high energy density and long life expectancy, these batteries can be used for a wide range of applications, including electric toys, calculators, computer motherboards, watches, cameras, car security alarms, keyless car remotes, electronic hearing aids, PDAs, electronic organizers, pet collars, counters, remote controls, electronic instruments, blood glucose meters, cholesterol testing meters, and LED lights, among other electronic appliances.

When using these batteries, it is crucial to insert them in the correct direction and avoid short-circuiting. They should be kept in a dry and cool place, and should not be recharged or disposed of in fire. Before replacing the battery, the battery slot should be cleaned to ensure there is no dust. When inserting the new battery, gently squeeze the side with two fingers, align it with the slot, and ensure it is properly seated. Do not move the battery once it is fixed, and wipe it with a dry cloth, confirming the positive and negative ends.

Specifications for these batteries include: Model: AG4 Material: Metal Standard Voltage: 1.5V Storage & Working Temperature: ＜45°C Package: 10 PCS AG4 Button Batteries

Additionally, these batteries are known by various other names, including LR626, SR626SW, AG4, 626, SR626, 377A, V377, 377, and 626SW.

The AG4 model specifically has the following features: Voltage: 1.55V High Capacity: 20mAh Package: 1 pack of 10 AG4 button batteries

These batteries are also fresh, with a 3-year shelf life, and provide a full 1.5 volts of charge.

Importantly, these button batteries are mercury-free and environmentally friendly. The production process does not contain harmful substances such as lead, cadmium, or mercury, and the new energy technology used is safe and pollution-free. Additionally, the stainless steel appearance provides good sealing performance, ensuring longer-lasting and stronger safety.

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