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The Best Battery Chargers (For D and C Size Batteries)

by Justin Thomas •

We briefly reviewed battery chargers in a previous post “The Best Rechargeable AA Batteries“. 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.

2

MIT Says Relax & Recharge On A Solar Powered Rocker

by Tracy McGill •

Architecture students at MIT, led by Professor Sheila Kennedy, recently unveiled their latest design for the Massachusetts’ based school’s 150th anniversary Festival of Art+Science+Technology (FAST). These solar powered SOFT rockers allow you to plug in and recharge your USB device while relaxing outdoors. With a soft wood construction, the rocker makes use of the balance from human body weight to …

3

The PowerGorilla: Flexible Portable Power

by Justin Thomas •

I’ve been testing a device that just been introduced called the PowerGorilla. It’s a portable power pack that acts an emergency back-up charger for your laptop computer other other electronic gadgets. The battery inside the PowerGorilla is a lithium-ion and weighs just 631 grams (1.4 pounds). The charger will give you an extra 2-5 hours of power, depending on your …

1

Juice Bag: Flexible Solar Power

by Justin Thomas •

The “Juice Bag” is the first of its kind — a backpack with flexible solar panels built in. This means it’s lighter and less bulky that other solar backpacks. The pack has a capacity of 2500 Cubic inches, and weighs 2.5 pounds. It charges gadgets directly via a built-in female 12V car charger. The solar cells output 6.3 Watts. It’s …

4

Solar Chill Evaporative Coolers

by Justin Thomas •

Notes from Manufacturer: Recommended for drier climates. Works when humidity < 40% Features: Cut your cooling costs by up to 90% Low wattage cooling: from 20 to 150 watts This is a cooler that can run on 1 or 2 solar panels, or a car battery charger More environmentally friendly – no freon Cabinet is 24 gauge stainless steel, warranted …