- Are these batteries good for smoke detectors?
- Yes. Alkaline AA cells suit smoke detectors and last about a year in most models. Check your detector's manual, since some makers recommend specific battery types.
- How do CopperTop AA compare with Duracell Optimum?
- Optimum is Duracell's higher-tier alkaline, aimed at high-drain devices and longer runtime. CopperTop is the general-purpose choice and usually the better fit for remotes, clocks and toys.
- Can these batteries be recharged?
- No. CopperTop is a single-use alkaline cell. Recharging it is unsafe; use NiMH rechargeables if you want reusable AA batteries.
- How should I store a 36-pack?
- Keep cells in their packaging in a dry place at room temperature. Avoid loose storage with metal objects that can short the terminals.
- Will they work in cold weather?
- Alkaline cells lose capacity below freezing. For winter use in trail cameras or outdoor gear, lithium AA batteries perform better in the cold.
- Do they fit standard AA devices?
- Yes. They are standard AA (LR6) size and fit any device that takes AA batteries.
- Where is the Duracell Power Boost CopperTop Alkaline AA 36-pack cheapest?
- At Quill, for $31.67, 19% under what the other stores charge, as of our latest check.
- Where can I buy the Duracell Power Boost CopperTop Alkaline AA 36-pack?
- 4 stores we checked sell it, including Quill, Office Depot, Staples, Lowe's.