The Philips R6L4F-70 is a high-performance, long-lasting Mignon battery (also known as a D battery) that is ideal for everyday use in various electronic devices. It is designed to provide reliable power for devices such as flashlights, radios, and other high-drain devices. The battery is also compatible with a wide range of other devices that require Mignon batteries. Long-lasting performance: The battery is designed to provide up to 10 years of storage life and up to 10 hours of continuous use in a high-drain device. High-performance formula: The battery uses a high-performance formula that provides reliable power even in cold temperatures. Leak-proof design: The battery is designed to be leak-proof, so you can use it with confidence in your devices. Environmentally friendly: The battery is mercury-free and cadmium-free, making it a more environmentally friendly choice.