Arrays of individual lithium nanobatteries were constructed using alumina membranes having pores 200nm in diameters. These pores served as the “jackets” to hold a PEO-lithium triflate electrolyte. The pores were then capped with a cathode material consisting of an ambigel of V2O5 making arrays of individual nanobatteries. Cyclic voltammetry data indicated that a nanoelectrode array model could describe these arrays of cathodes. However, individual nanobatteries were further characterized by charge/discharge tests using atomic force microscopy cantilever tips to make electrical contact with the 200nm cathodes of the nanobatteries. Average volumetric capacities of 45μAhcm−2 μm−1 were recorded for these battery systems, demonstrating that these small lithium batteries could function as viable, miniaturized power sources for future nanodevices.