Delkin extended-power rechargeable AAs are nickel-metal hydridemanufactured and energy-infused to offer 30-40% higher capacity thannickel-cadmium batteries. The "no memory effect" property of these cellsmeans no unexpected loss of charge over time or during extended use, acommon attribute of nickel-cadmium cells. Unlike other rechargeables,Delkin Power batteries do not require fully charging or periodicdischarging, and weakening currency will never be an issue. Whencompared to disposable alkaline batteries, the single charge of a NiMHbattery will last up to 3-4 times longer.Advanced safety features and non-toxic metal manufacturing eliminate anypossibility of overheating, short circuiting or further electricalhazard. Plus, this sustainable, recyclable Delkin battery has proven tohave less of an impact on non-renewable natural resources by 23 times,global warming by 28 times and air pollution by 30 times in comparisonto the average disposable.