Total Micro Lithium Ion Notebook Battery Lithium-Ion (Li-Ion) rechargeable battery

7-Hour Extended Life External Battery for use portable computers Total Micro's PowerStation 100 is thin external battery pack which can power virtually any portable computer. Built using the latest in Lithium Ion Prismatic Technology and utilizing Double Protection Circuitry, this external battery provides up to 7 hours of supplemental power in a unique flat form factor. Weighing only 32 ounces and at just over a quarter of an inch thick, the PowerStation 100 is about the size of a sheet of paper and fits conveniently beneath a notebook computer. The built-in LED displays available battery life as well as the progress during the recharge mode.