Power glucometers and other home medical devices Can also be used for keylss entry. Features DuralockPower Preserve(TM) Technology. DuralockPower Preserve(TM) Technology guarantees 10 years of power preservation in every Duracell alkaline battery when properly stored. Duracell(R) 3.0 Volt Lithium Medical Battery, 2032 is one of many Watch, Calculator & Specialty Batteries available through Office Depot. Made by Duracell.