How does the button battery keep?
Try not to unpack, do not directly contact with the electrical and the positive and negative 2 pole basically so can adhere to the shelf life.
Button batteries, also known as button batteries, refers to the size of a battery like a small button, in general, larger diameter, thinner thickness (relative to the columnar batteries such as the market on the 5th AA batteries). Shape up to the battery points, the same corresponding battery classification columnar battery, square battery, shaped battery.
Can be removed into the plastic bag, or other places can be moisture.