BK-3HCCE_4BE . This is a Rechargeable batterry. Rechargeable batteries NEVER EXPIRE. They just to be recharged. There is NO EXPIRATION DATE on this product.
Description
Panasonic Eneloop Pro AA MIN 2500mAh Ni-MH High Capacity pre-charged rechargeable battery All Panasonic Eneloop Pro AA Battery cells made in Japan and sold worldwide (including USA) state MIN 2500 mAh.