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Rechargeable Batteries

The Best Rechargeable D Size Batteries And Chargers

The best rechargeable D size batteries are Ni-MH (Nickel-Metal Hybride) cells that offer a high storage capacity of around 10,000 mAh or milliamp hours. Typically required in high-drain, high-current devices, D size batteries are expensive to replace so the higher the capacity the better. The new Ni-MH rechargeable batteries are able to retain a charge [...]

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Best Electric Bikes For 2011

The past year has seen an abundance of bike manufacturers entering into the electric bike arena with slick, lightweight and powerful bikes. Despite misconceptions, electric bikes allow commuters to increase their range safely and arrive to the office smelling fresh, while still getting exercise (yes, you still have to pedal an electric bike) and reducing [...]

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Personal Energy Generator Recharges Your Electronic Device While You Move

The new nPower PEG (personal energy generator) by Tremont Electric wowed reviewers at the 2011 CES convention. This back-up hybrid charger allows you to keep your cell phone, iPod, or other hand-held device working while you’re on the go. By harnessing the kinetic energy that you produce through movement, then converting it into accessible power, [...]

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The Best Rechargeable Batteries and Chargers Of 2012

Today, the best rechargeable batteries are the new hybrid Nickel-Metal Hydride (Ni-MH) cells. These hybrid batteries have a lot going for them: they come fully charged (like alkaline batteries), and they can hold their charge over may months (unlike regular Ni-MH rechargeables). Because they can hold their charge for so long, they are suitable for [...]

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Electric Cars Making A Comeback In 2011

2011 is being heralded by auto industry insiders as the “year of the electric car”. Though we here at Metaefficient endorse a life free of dependency upon cars, 100% electric vehicles are certainly more fuel efficient than internal combustion vehicles and may be on their way to becoming user-friendly as well. For 2011 consumers interested [...]

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Better Place Shows Electric Taxis Working in the Real World

Shai Agassi, founder and CEO of Better Place, has a vision — a vision for a world free of oil dependency. Mr. Agassi, who is well on his way to making this vision a reality, has what he believes is the solution for making electric vehicles efficient and affordable. He theorizes that the only way [...]

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Energy Efficient Gadget Gifts

Energy efficient isn’t a term often associated with gadgets, especially for those who aren’t technologically savvy. With each holiday season, review sites across the web make their annual picks for the coolest gadget gifts. Generally these gadgets turn out to be novelty items that are tossed aside when the holidays are over.  As energy prices [...]

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The Best Rechargeable 9 Volt Batteries

When buying 9 volt batteries, you might want to consider a rechargeable Lithium Polymer 9 volt batteries. There are only a few companies that make rechargeable 9V batteries, the brand I like the most is Maha. They make a 9V rechargeable batteries and chargers, both available on Amazon.

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Universal Battery Chargers Of 2010: A Review

We briefly reviewed battery chargers in a previous post “The Best Rechargeable Batteries of 2010“. But let’s take a look at the best “Universal Battery Chargers”. These are chargers that can handle AAA, AA, C, D sized cells, and well as 9V cells.

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Review: The Best Flashlights (2008 Update)

Update: See our newer post The Best Flashlights Of 2009 What are the most efficient flashlights available today? We think LED-based flashlights are the only ones worthy of consideration. LEDs will shine longer than other bulbs, and can withstand shocks and temperature extremes. The best LED flashlights incorporate bright, high-quality LEDs with regulatory circuits that [...]

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