The iPad won’t charge with all USB chargers. But that’s because your USB chargers are weak. The reVIVE II Dual USB Charger can charge both your iPad and your other weakling gadget. The reVIVE II is not weak. More

I’m almost too scared to tell you that the BioLite camping stove can burn anything. I don’t want to know what you’d shove in there. Still, the leftover heat can be used to power your gadgets—that’s good, right? More

Strap the wrist charger ’round the skinniest part of your arm, and juice up your console, or other miniUSB-supporting device. The 1,500mAh Li-Ion battery won’t power you to level 47 but will get through a couple hours’ usage. More

If you’re like me, until your house is beaming juice to your gadgets wirelessly, you will resolutely consider charging stuff a pain in the ass. The Idapt i4 gets where we’re coming from and offers one word of consolation: consolidation. More

If you were comforted by the first revieLITE , an iPod charger/nightlight combo from 2008, you’ll be even more thankful for the sequel: the ReviveLite II has a slimmer footprint, an additional USB port and still protects you from night terrors. More

Batteries are usually just a boring, blunt necessity, on account of being batteries and all. But HyperMac’s line of Apple-friendly lithium-ion battery packs are a colorful exception to the rule. Plus: battery babes! HyperMac introduced three new aluminum-cased battery pack sets today in all, each available in the nine iPod nano colors (that’s black, silver, pink, red, orange, yellow, green, blue, purple, for those keeping score at home). The 1800mAh HyperMac Nano has a built-in charging cable and holds enough power to fully recharge and iPhone 1.5 times. There’s also the 3600mAh HyperMac Micro , which can recharge an iPhone three times, and the big poppa HyperMac Mini , whose 7200mAh can recharge an iPhone a whole six times. All three also have USB connections, so you’re not limited to charging only your Apple products with them.

From an AskReddit member: “Go to a hotel and say you think you lost it there. It’s the #1 most left behind item at hotels, so most places have a big bin filled with every phone charger imaginable. [ Reddit ] UPDATE UPDATE: I just received this note from a reader on the subject: “I work for the second largest conference hotel in my city. You have no idea the size box we have of chargers left behind.

Forget PowerMats and wireless charging and the like, because the Airnergy wi-fi signal harvester is my new front runner for the future of gadget charging. It’s not exactly new tech, as ohGizmo notes, but it’s the first application that’s of any real use to consumers. Put simply, Airnergy takes the energy created by wi-fi signals and stores it in a rechargeable battery. At CES, the device was able to charge a BlackBerry from 30% power to full power in about 90 minutes. Pretty handy, and supposedly available this summer for $40

We’ve seen batteries charged by outlets and by cranks, but this concept from designers Song Teaho and Hyejin Lee is the first that charges with a twirl. However, like all things tagged concept, this battery doesn’t *technically* exist yet. Still, Teaho and Lee both hypothesize that this battery, should it become the real deal, would require about 130 twirls for two-minutes talk time. From what I’ve seen of crank-charged batteries, that seems relatively plausible (and tiring). Get to work, fellas.

We’ve seen batteries charged by outlets and by cranks, but this concept from designers Song Teaho and Hyejin Lee is the first that charges with a twirl. However, like all things tagged concept, this battery doesn’t *technically* exist yet. Still, Teaho and Lee both hypothesize that this battery, should it become the real deal, would require about 130 twirls for two-minutes talk time. From what I’ve seen of crank-charged batteries, that seems relatively plausible (and tiring). Get to work, fellas