Energizer industrial alkaline batteries contain the long-lasting power found in Energizer Max alkaline batteries with a design enhanced for todays heavy current or continuous use applications. Offer the longest lasting power source of all primary batteries over a range of sizes. No mercury added Special disposal not required. Operate well in temperature extremes -30 Celsius to 55 Celsius. Excellent shelf life alkaline cells are ready for use after 5 years of storage.