The MetalCell is a portable battery ready for use anywhere. The battery allows you to generate energy for electronics like flashlights or even laptops from saltwater. Or, if there is no salt water about, it can use urine.
The is a rechargeable AA battery by Moixa. The battery is designed to fit into a USB port and to charge through it. These batteries offer a freedom from the need to have a battery charger to be able to recharge a battery.
If you’re keen to start playing around with solar panels, but don’t really know where to start when it comes to charge regulators, invertors and batteries, then the is pretty useful. The power pack includes a 7Ah lead acid battery, and you just connect any 12V solar panel to charge the internal battery. The power...
