She has personally tested compostable packaging in her backyard compost heap, a variety of solar chargers, hybrid cars, and other products meant to leave a lighter footprint. She’s also a science writer who has covered biotech, astrobiology, animals, women’s health, and space for a variety of publications including Scientific American and National Geographic. Starre Vartan has been covering sustainable consumer products for 15 years, 10 of those with Treehugger (under the MNN brand). The higher the number, the longer it will last, or the more power available for short, high-drain use (think a camera flash). Importantly, smoke detectors that require a 9-volt battery (some come with built-in, long-lasting batteries and we’re not talking about those) shouldn’t use disposable batteries-they’re not designed with them in mind.Įnergy Capacity: The energy capacity of a battery is measured in milliamp hours or mAh. Rayovac High Energy Alkaline AA Batteries, 72-Pack 9. Amazon Basics Easy Store AA Batteries, 20-Pack 8. ACDelco Gaming Leak Protection AA Batteries, 100-Pack 7. EBL Remote & Toy AA Batteries, 28-Pack 6. Brightown Money Saving Long-Lasting AA Batteries, 12-Pack 5. Anything that draws continuous small amounts of power over a long time period like wall clocks or headlamps are better off with a disposable battery. Energizer MAX Leak-Proof AA Batteries, 48-Pack 4. Intended Use: Disposable batteries are sometimes a better choice than rechargeable. Price: There’s not a huge difference between the major brands listed above when it comes to rechargeable batteries, so overall, you’re probably best off choosing the one that’s on sale when you look to buy (and again, don’t forget to factor in the cost of the charger).īrand: With that said, it’s wise to stay away from off-brand batteries of any kind, whether rechargeable or disposable.
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