AA Ultimate Lithium Batteries - Energizer



  • The #1 longest-lasting AA batteries
  • Considered by many to be the best AA batteries
  • Weighs 1/3 less than standard alkaline batteries
  • Performs in extreme temperatures from -40°F to 140°F
  • Holds power for 20 years in storage
  • Features guaranteed leak-proof construction (based on standard use)


Classification: "Cylindrical Primary Lithium"
Chemical System: Lithium/Iron Disulfide (Li/FeS2)
Designation: ANSI 15-LF, IEC-FR14505 (FR6)
Nominal Voltage: 1.5 Volts
Sizing Compatibility Storage Temp: -40°C to 60°C (-40°F to 140°F)
Operating Temp: -40°C to 60°C (-40°F to 140°F)*
Typical Weight: 15 grams (0.5 oz.)
Typical Volume: 8.0 cubic centimeters (0.49 cubic inch)
Max Discharge: 2.5 amps continuous (single battery only) 4.0 amps pulse (2 sec on / 8 sec off)
Lithium Content: Less than 1 gram Typical IR: 120 to 240 milliohms (depending on method)

More detailed manufacturer specifications