Retailer Brookstone is working with MIT spin-off Liliputian Systems to deliver a palm-sized portable fuel cell USB charger. The device will offer mobile users the ability to charge their smartphone up to 14 times for around two-weeks of use free from a wall charger. Like the similar Powertrekk portable fuel-cell charger, the Brookstone device uses replaceable fluid-filled cartridges to continue delivering charges after the initial cartridge is depleted.
