Which Batteries Perform Best?

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Oct 132017
 

Which Batteries Perform Best?

You probably have AA batteries scattered around your house. You use them for your remote controls, your grandkids’ toys and many other everyday items. Face it, you can’t live without batteries, but somehow we always seem to run out of them.

But before you buy AA batteries, you need to know a few things. First, there are two types of batteries: alkaline and lithium. More to the point, not all batteries are a good value. Does paying more mean you’ll get a better, longer lasting battery?

No, not according to Consumer Reports. They tested 15 brands of AA batteries, including Amazon-branded batteries and Costco’s Kirkland batteries.

The prestigious magazine found that some lower cost batteries are just as good or nearly as good as the most expensive brands. In fact, you’ll be shocked by how you don’t need to break the bank for high-quality batteries that will keep your Christmas presents humming for weeks or months.

Note: Consumer Reports tested batteries in two ways: They used the batteries until they died in toys for one hour a day and in flashlights for four minutes every eight hours.

Alkaline vs. Lithium

First things first. You’ve probably noticed that generally speaking, lithium batteries are expensive.

You might be tempted to buy them, thinking that if they cost more they probably last longer. As it turns out, Consumer Reports suggests using lithium batteries sparingly, like in devices that need a quick burst of power or that you don’t use very often.

Note: You can store lithium batteries for up to 15 years. They don’t need to be stored in the refrigerator and they don’t usually spew liquid like older, carbon-zinc batteries did.

Some alkaline batteries performed as well as lithium batteries in Consumer Reports’ test. These batteries are typically less expensive. You may want to use them in devices you use a lot, like your TV remote control and your computer’s wireless mouse.

So, which brands performed best in Consumer Reports’ tests? Both alkaline and lithium batteries were among the best values.

This might surprise you. The top performers included two brands that might have the perception of being “cheap.”

Costco’s Kirkland Signature brand AA alkaline battery had an overall score of 80, out of a possible 100. AmazonBasics Performance AA Alkaline had a 71.

That compares to top-rated brands such as Energizer Ultimate Lithium AA (89), Duracell Quantum AA Alkaline (89) and Rayovac Fusion Advanced AA Alkaline (85).

Lithium batteries
  • Energizer Ultimate Lithium AA – CR only tested two lithium style batteries and this one came out on top. It received an overall score of 89.
  • Energizer Advanced Lithium AA – This one came in second with an overall score of 82.
Alkaline batteries
  • Duracell Quantum AA Alkaline – CR tested a total of 13 alkaline batteries and this one is the best. It received an overall score of 89.
  • Rayovac Fusion Advanced AA Alkaline – Overall score of 85.
  • CVS Max AA Alkaline – Overall score of 82.
  • Duracell Coppertop Duralock AA Alkaline – Overall score of 80.
  • Kirkland Signature (Costco) AA Alkaline – Overall score of 80.
  • Rite Aid Home AA Alkaline – Overall score of 79.
  • AmazonBasics Performance AA Alkaline – Overall score of 71.
  • Walgreens W Alkaline Supercell AA – Overall score of 71.
  • Energizer ecoAdvanced AA Alkaline – Overall score of 68.
  • Energizer MAX +PowerSeal AA Alkaline – Overall score of 67.
  • CVS AA Alkaline – Overall score of 62.
  • Dynex (Best Buy) High Capacity AA Alkaline – Overall score of 60.
  • EcoAlkalines AA Alkaline – Overall score of 59.

 

Source…

Dog Age Compared To Human Age

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Jun 252017
 

A chart that compares dog age to human age.

Relation of dog to human years

Dog Human
  6 months
  8 months
10 months
12 months
18 months
  2 years
  4 years
  6 years
  8 years
10 years
11 years
12 years
13 years
14 years
15 years
16 years
18 years
20 years
21 years
  10 years
  13 years
  14 years
  15 years
  20 years
  24 years
  32 years
  40 years
  48 years
  56 years
  60 years
  64 years
  68 years
  72 years
  76 years
  80 years
  88 years
  96 years
100 years

 

The True Size Of The Moon

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Jun 102017
 

And now for a sense of scale: a map of the U.S. overlaid on the Moon

The True Size Of The Moon

The greatest distance between two points within the contiguous U.S. is 2,892 miles, stretching from Point Arena, CA to West Quoddy Head, ME*. The circumference of the Moon is 6,784. To help put the scale of each into perspective, redditor boredboarder8 decided to overlay one on top of the other, giving rise to the approximation you see above. [Click here for hi-res]

Writes boredboarder8:

It was difficult for me to fathom the size of the moon, thus inspiring the creation of this map. For me, this map puts the scale of the moon much smaller than I previously imagined. But it’s really interesting hearing how others (already grasping the size of the moon) now see the US as larger. [Ed.: ‘MURICA, amirite?]

It was one definitely a weird challenge to take a “flat” map of something on a sphere and project it onto a smaller sphere. Got mindfucked a few times along the way. Certainly take it only as an approximation, but what intrigued me the most is that the distance spanning the continental United States is roughly equal to a little less than half the circumference of the moon.

We repeat: this is just a rough estimate, but it’s certainly good enough for government work when it comes to illustrating the Moon’s relative dinkiness. (Or America’s hulking hugeness, depending on how patriotic you’re feeling.)

It’s strange — when we imagine objects in our solar system (even ones we know to be “small,” relative to other celestial bodies) I suspect that many of us regard them as just being unrelatably huge. They exist at scales so large, and at distances so vast, that numbers relating to mass, surface area and volume — descriptive though they may be — are rendered effectively meaningless.

So it’s always nice when images like this come along that help put things into perspective, whether it’s a side-by-side comparison of all the water on Earth relative to the Earth itself, a figure illustrating there’s more water on Jupiter’s moon Europa than there is on Earth, or a map of the U.S. slapped across the Moon’s near-side.

 

 
 
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