Consumer Reports results summarized at http://www.ksla.com/story/5631320/consumer-alert-finding-the-best-battery-bargains?clienttype=printable
Powering everything from digital cameras and portable music players to laser tools and even tape measures, it’s no wonder we spend over four-billion dollars a year on batteries. But how do you know what’s the best battery for your needs?
Consumer Reports just ran tests on 16 different disposable double-A batteries, including ones from Duracell, Panasonic, and Energizer. There were four types in all - lithium, premium alkaline, regular alkaline, and nickel oxy-hydroxide.
Tests evaluated the battery life in high-drain devices, like a digital camera, and medium-drain devices such as a CD player.
"Our tests showed big differences in battery performance depending on what’s being powered. So it really makes sense when you’re buying disposable batteries to have a specific device in mind,"said one expert, Kim Kleman.
The best battery for a digital camera turned out to be the Energizer e-2 Lithium, which easily outperformed the Duracell Power Pix and Panasonic Oxyride batteries. At two-dollars-and-35-cents a piece, the Energizer was the most expensive battery tested. But considering the e-2 ran three to seven times longer than the batteries tested - Consumer Reports says it’s worth the extra cost.
“But when it comes to devices that don’t need a lot of power - you don’t need to buy expensive batteries, just buy the cheapest highly rated alkaline you can find,” says Kleman.
Consumer Reports tests found the Kirkland Signature double-A battery from Costco performed very well and goes for about 20-cents a piece.