
The Duracell CR123A is a solid choice if you need reliable power for critical applications like home security systems, motion detectors, or medical equipment—users consistently report these batteries lasting 5+ months in motion detectors compared to just 3 months with Energizer. The 12-pack provides excellent backup supply, and security professionals specifically recommend these for motion sensor applications. While they're more expensive than budget options, the significantly longer lifespan makes them cost-effective in the long run, especially for devices where battery failure could be inconvenient or problematic.
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