A New Breed of Battery Charger

This month, we have a slightly different tech tip for you. Many vendors now offer portable batteries capable of starting a car. These batteries, each of them slightly bigger than a paperback book, can not only jump a car battery, but also re-charge a vari­ety of portable electronics, such as phones or lap­tops, through a USB port. These units are powerful enough to jump start a V8 engine (400 amps) and will generally hold a charge for up to six months. These units can really come in handy, not only for trophy cars, but also for daily drivers. One day,