The AG1 / LR621 1.55V Alkaline Button Coin Cell Batteries are designed to deliver stable, long-lasting power for small electronic devices. Manufactured using high-quality alkaline chemistry, these batteries ensure reliable performance, low self-discharge, and leak-resistant operation. Perfect for bulk usage, this Pack of 100 is ideal for retailers, service centers, workshops, and frequent replacement needs. These compact button cells are compatible with a wide range of devices such as watches, calculators, toys, medical instruments, laser pointers, and small electronics.