If a battery leaks, and its fluids make contact with your skin or get into your eye, rinse well with plenty of cold water and seek medical attention.When more than one battery is needed in a device, always use batteries of the same type, brand, and age.Remove batteries when you don’t expect to use a device for a few months.Each time you put in new batteries, clean the contact surfaces and battery compartments by rubbing them with a clean pencil eraser or rough cloth.But they do present some dangers if they’re used or disposed of incorrectly. Alkaline and lithium batteries are relatively benign household items. These tips will help your batteries last longer, and make sure you stay safe. And unlike the old carbon-zinc batteries, modern batteries don’t benefit from being refrigerated. The full test results on each battery model are available to subscribers. But our testing also showed a lot about how different batteries technologies perform, and that information is below.įirst, here’s a note on shelf life: Alkaline batteries can be stored for five to 10 years for lithium batteries, it’s 10 to 15. We repeated each test until the batteries were drained. For flashlights, we tested the battery for 4 minutes every hour for 8 hours, and then left it alone for 16 hours. For toys, we simulated an hour a day of play. Our tests were designed to mimic typical usage in toys and flashlights. To find out whether you need to pay top dollar to keep your gadgets running, we recently tested 15 different brand-name batteries-both alkaline and lithium. We test disposable AAs because they are the most commonly purchased battery for household items like calculators, portable clocks, garage door openers, even your wireless mouse. Prices and performance range widely among AA batteries.
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