Never run out of juice with these Energizer Max Plus AAA Batteries Choose from a pack of 10, 20 or 50 Energizer's number 1 longest lasting alkaline batteries Provide powerful performance to your devices Have an extra long 12 year shelf life Leakage protection for up to 2 years on fully-used batteries  Buying Options: 4.99 pounds instead of 19.99 pounds for the 10 pack - save 75% 8.99 pounds instead of 29.99 pounds for the 20 pack - save 70% 19.99 pounds instead of 39.99 pounds for the 50 pack - save 50%