The Ccell silo gold 500 Mah battery is a high-quality coin cell/button unit designed for use with 510 thread cartridges. With a voltage of 3.7 V and a chemical composition of Li-Ion, this rechargeable battery provides long-lasting power for a variety of devices. The 300 Mah amp hours ensure efficient performance, making it a reliable choice for those in need of a versatile power solution in the Sound & Vision category.