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Are All 9-Volt Batteries the Same?
9-Volt batteries are not all the same, as size can vary by manufacturer and brand. However, there are battery standards that manufacturers must follow, so while sizes might slightly vary by brand, any top brand 9-Volt battery purchased should be able to fit a device that takes 9V batteries. While most personal electronic devices take AAA and AA batteries, 9V batteries are commonly used for digital scales and emergency systems like smoke alarms and CO2 detectors.
Which 9-Volt Battery Lasts Longest?
9-Volt batteries need to last for an extended period of time, as they are often used to power essential and potentially life-saving devices, like smoke alarms. Several top-brands produce a 9V battery, including Duracell. Duracell 9V batteries are alkaline batteries that offer long-lasting power. Duracell 9V batteries also include a five-year storage guarantee, meaning that they will power your device correctly, even if used months or years after the purchase date.