This is a nickel-cadmium battery (rechargeable battery) manufactured around 1987. I liked the design and kept it as part of my collection. Please note that it does not function as a battery. A rare National (Matsushita Electric) Pananica brand product. AA size. Shipping costs are the responsibility of the buyer. It is not a lithium-ion battery, and it is completely discharged, so there is no risk of ignition.