Ultimate Lithium 9V BL1
The new high-performance Energizer Lithium battery
9v is ideal for important devices for the home, for example, smoke detectors, in which lasts up to 65% more than the normal alkaline battery from Energizer 9V. If you have a detector of smoke with current AC, the duration of stored 10 years will mean that it would not be necessary to replace it for a decade if used as a stack of safety. This duration of stored is double that of the alkaline battery.
If you are a media professional that uses microphones, battery Energizer Lithium 9V 5 times longer that normal alkaline Energizer 9V battery keep running you.