CopperTop and Energizer Bunny are marketing terms most Americans are familiar with, but they don't necessarily represent the brands of batteries consumers should be buying.
It's not that Duracell or Energizer batteries are bad; it's just that cheaper, lesser-known brands perform about the same, at least for traditional disposable alkaline batteries, according to recent testing by the Worcester Polytechnic Institute for a report at Toshiba pa3285u-3bas battery.
The report found "no measurable difference in quality among these batteries." In the testing, brand-name batteries were tested alongside generics and a cheaper brand, Rayovac.
Those findings echo other studies, including one by Consumer Reports, which found so little difference among alkaline batteries that it recommended cheap Kirkland Signature brand batteries sold at Costco.
Online retailer wholesaleeshop.com.au Toshiba pa3534u-1bas batteries also did its own tests and found less than 20 percent difference among brands of alkalines, while price differences are often much greater than 20 percent, said owner Jim DeWitt.
To be fair, big-name battery-makers manufacture some excellent, albeit expensive, high-capacity, long-lasting batteries, such as lithium batteries.
But that only highlights the growing complexity of buying batteries, especially when you add the topic of rechargeable batteries.
The myriad choices mean you might be overspending or purchasing the wrong type of batteries for your needs.
Here's what you need to know.
• Don't buy heavy-duty batteries: If ever a product was misnamed, it's heavy-duty batteries, which are just about the lightest-duty, lowest-capacity batteries you can buy. They have a fraction of the capacity of alkalines but don't cost much less. "I see no use for heavy-duty batteries for the average consumer — zero," DeWitt said. Sometimes, manufacturers that include batteries with their products — for a remote control, for example — might use the short-life batteries to cut costs, he said.
• Disposable alkalines simply work: Quality of single-use alkaline batteries is similar among brands, so shop by price. A notable exception is the Energizer Max Alkaline, which was a poor-performing battery in Consumer Reports tests reported in December. Alkalines have a long shelf life, usually more than five years, making them ideal for seldom-used devices such as flashlights and smoke detectors. They're also best for low-draw devices(Toshiba satellite a200 battery,Toshiba pa3536u-1brs Battery) like wall clocks.
"There are definitely times when you want to stick with regular alkaline batteries," said Christine Frietchen , which compiles and summarizes other reviews.
• Buy alkalines in bulk: In small quantities, a good price on standard alkalines would be 50 cents each for standard AA cells. But you can pay near half that if you're willing to buy in bulk. You're not taking a huge risk of batteries going dead before you use them, because alkalines have such a long shelf life. Best storage is a cool, dry place, but not a refrigerator or freezer, according to manufacturers.
A recent offer found via DealNews.com was for a 24-pack of Duracell Procell AA batteries for about $8 from bestlaptopbattery.co.uk. That's just 33 cents per battery, excluding shipping cost. Zbattery.com sells a case of 98 Sony AA batteries for $25.95, or 26 cents each before shipping costs.
And keep an eye out for manufacturer coupons. Stacking a sale and a coupon might mean you get name-brand batteries cheaper than generics.
Did you know that detaching your main laptop batteries from your laptop would increase your laptop's battery life up to 75%? Our experience and testing have shown that even when you are plugged in with your laptop ac adapter and your battery is fully charged, the laptop will still use the laptop battery resources in small increments. This will put unnecessary charge cycles to your battery. Since typical li-ion laptop batteries have 375 charge cycles, having a fully charged battery inserted will put unnecessary charge cycles. The downside to removing your laptop battery maybe a loss of power when the ac adapter is accidentally unplugged or when there is a power outage.
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