Are Energizer Alkaline AA Batteries Worth It?
Worth it, for the household that runs on batteries
Picture the flashlight going dim halfway through a power cut, or the game controller buzzing once and going silent right before the important part. You dig through the junk drawer and half the double A batteries in there are already flat, just from sitting there for a year. That's the real question with energizer alkaline AA batteries: not whether they work today, but whether they'll still have anything left in them when you actually need them.
Here's the bit worth understanding. Alkaline batteries store their charge as a chemical reaction between a zinc anode and a manganese dioxide cathode, sealed with a potassium hydroxide paste in between. That reaction only runs when the circuit is closed, which is why a sealed AA left untouched barely loses any charge over time. That's the actual mechanism behind the ten-year shelf claim: it's not a marketing number, it's just very slow self-discharge, which is exactly what you want from batteries destined for a hurricane kit or a drawer you forget about. The same steady reaction is also why they hold up under lighter, intermittent draws, a wireless mouse clicking on and off, a thermometer checking in twice a day, a smart home sensor pinging occasionally. A 32-count box matters here for a boring reason: it means the flashlight, the VR controller, and the emergency kit all come from one purchase instead of six separate ones, so you're never the household with three dead remotes and no spares.
So you're not really buying batteries, you're buying stored time, insurance that the flashlight works on night one of an outage and the smart lock still opens on a random Tuesday two years from now. The chemistry inside the pack is the same whether you buy four or thirty-two, what the bigger count buys is not running out at the worst possible moment.
Worth it if
- You want one battery box to cover flashlights, remotes, and small electronics
- You're building or restocking an emergency or storm kit
- You'd rather buy in bulk once than keep restocking singles
Skip it if
- You're powering high-drain gear like camera flashes or rumble-heavy controllers used constantly
- You only ever need a couple of batteries at a time
- You already have a lithium stash for emergency use
Not the right pick for high-drain gear like professional flashes or heavy-use power tools, alkaline is built for steady, lighter draws.
If your house runs a dozen battery-powered things and you'd rather buy once than restock constantly, this is a quiet yes. If you're powering something that drains hard and fast, like a flash-heavy camera or a high-output work light, a lithium AA will outlast alkaline and is worth the extra cost there instead.
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Before you go
Are Energizer alkaline batteries any good?
Yes, for everyday and light-to-medium drain devices, alkaline chemistry gives them a long shelf life and steady output, which is exactly what most household electronics need.
Are alkaline batteries the same as Energizer batteries?
No, alkaline describes the chemistry inside the battery, Energizer is one brand that makes alkaline batteries alongside other brands like Duracell.
What is the longest lasting alkaline AA battery?
Shelf life among major alkaline brands is very similar, generally around a decade in storage, the bigger differences show up in high-drain devices rather than sitting in a drawer.
By the numbers
earn an unconditional yes at full priceOut of 147 electronics products we have reviewed, and this is one of them.
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Full spec sheet
| Number of Batteries | 2 A batteries required. (included) |
|---|---|
| Brand | Energizer |
| Battery Cell Composition | Alkaline |
| Battery Capacity | 100 milliamp_hours |
| Recommended Uses For Product | TV Remote |
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