The Eveready Super Heavy-Duty Battery is designed to provide reliable power. It's made from carbon zinc with a metal housing for durability and protection. This Eveready battery is ideal for clocks, flashlights, radios and other low-drain devices. It contains no added mercury or cadmium and has an operating temperature range of 20 to 130 degrees Fahrenheit. Ideal for clocks, flashlights, radios and other devices that are low-drain. The nine-volt battery, or 9-volt battery, is an electric battery that supplies a nominal voltage of 9 volts. Actual voltage measures 7.2 to 9.6 volts, depending on battery chemistry. Batteries of various sizes and capacities are manufactured; a very common size is known as PP3, introduced for early transistor radios.

• 9V battery capacity last for about four hours with the rechargeable Lithium lasts for 7 to 7.5 hours.
• 9V rechargeable batteries usually come with a special charger as these are not compatible with universal chargers or any other battery charger.
• The 9V battery is used in many different applications.
• 9 volt batteries can frequently be seen used in radios, smoke alarms, wall clocks, walkie-talkies, portable electronics, and much more.
• A 9v battery is perfect for this job as it can provide high power for its size.