Sharing music with friends through laptop or smartphone speakers can be less than satisfying, which perhaps goes some way to explaining the overwhelming choice of portable Bluetooth speakers that come ...

Inspired by many months of hours-long load shedding in South Africa, [JGJMatt] decided to make a portable speaker that can play tunes for hours on a single charge and even charge off the integrated ...

Rechargeable batteries are the Achilles heel of portable electronics, requiring hours to recharge and generally having a life of around 1,000 recharge/discharge cycles before charge capacity starts to ...

A few years ago, Portland resident Sam Beck built a bike-powered speaker that wouldn’t cut off when he stopped pedaling at stoplights. He accomplished such a feat with an amazing new technology: ...

Solar panels are a great way to generate clean electricity, but require some energy storage mechanism if you also want to use their power at night. This can be a bit tricky for large solar farms that ...

Blueshift makes Bluetooth speakers that are truly unique: They rock a bamboo shell and are powered by supercapacitors (not batteries) that recharge in five minutes and survive a whopping 500,000 ...