Energizer Ultimate Lithium 9 Volt Battery replaces standard Alkaline 9 volt batteries and lasts up to 9x longer.  These 9v batteries are mainly used in Fire Detectors, Kid's Toys and other applications that require a 9 volt battery.

Energizer Ultimate Lithium AA 4pk. Replaces standard Alkaline or Carbon Zinc 1.5 volt AA batteries. Lasts up to 9x Longer.

Energizer Ultimate Lithium AAA 4pk. Replaces standard Alkaline or Carbon Zinc 1.5 volt AAA batteries. Lasts up to 9x Longer.

The 3V CR123A Streamlight lithium battery is a replacement for any standard 3-volt (123 CR123 123A) lithium battery.