How Long Does 9v Battery Last. Since the life youll get from a battery is dependent on when the battery was made not necessarily when it was put into service its important to know the date code so you can be sure the battery you buy is fresh and hasnt been sitting on the shelf. If the battery is supposed to last an hour discharge current has to be below 300mA even for a top brand battery.
Anything digital is really only offering a battery as a backup. Energizer says a 10-year shelf life but we wouldnt recommend waiting that long. Ad Shop 9v Battery Battery and get them today.
1222 Eveready 15V Super Heavy Duty 9V Battery.
Long-life battery smoke detectors last up to 10 years before they need a replacement. Because the battery is inbuilt you may have to change the entire system after 10 years of active usage. Shelf life varies across our products. Posted by 6 years ago.
