Patent ID: 8131486

Claim:
A battery monitoring system for simultaneously managing the batteries in 100 or more remote locations, each of said locations comprising a battery string with 100 or fewer cells, said system comprising: a. an individual battery monitor operatively engaged with at least one of said cells; b. a network access module in communication with said battery monitor, said network access module comprising a modem compatible with a machine-to-machine data communication protocol, said protocol comprising assigning a variable IP address to said network access module modem upon initiation of a connection to a battery manager; and c. said battery manager comprising a fixed IP address that can be connected to via said a machine-to-machine data protocol upon said initiation of said connection, wherein said network access module is programmed to periodically transfer battery monitor data, including ohmic measurements, to said battery manager at a frequency of not less than once per week and with a total rate of data transfer of not more than 1 Mb per month.