thanks to everyone’s great feedback, i’ve now got a usb battery that’s much more efficient and capable of delivering more current to a portable device. like i promised, i put together a slick little case to finish this hack off right. read on for some tips on building your own.
found out yesterday that there’s a shuffle shortage and gadget battery life can only be expected to get worse. bummer. at least you can make the most of your waiting-for-shuffle blues and solder yourself a ‘usb battery’. this little gizmo runs off a 9 volt battery and supplies your favorite little device with the proper 5 volts of mobile power.
in lieu of running an ipod off of it, i tested it with an mpx220 smartphone and it should work fine with any low power mobile device that can charge via usb cable. read more for instructions on how to make your own.
do you have one of those aa batteries with the yellow test strip that doesn’t go yellow any more? pierre-philippe coupard put together some great instructions for turning a used aa battery into an analog cpu load monitor for a linux pc.
Continue reading “Convert An Old Battery Into A Linux Cpu Monitor”
