Portable communications system contained in a ruggedized case that creates a wireless network that interconnects radio, cellular and data devices to the outside world comprised of a network router that bridges local and external networks, antennas that provide coverage for cellular, wireless and GPS, Sealed Lead Acid (SLA) batteries and lithium ion batteries with an internal battery management and charging system comprised of a DC/DC converter, battery charger and integrated circuits to monitor and control battery state of charge

'acid':47 'antenna':36 'batteri':49,53,57,67,76 'bridg':31 'case':8 'cellular':17,41 'charg':60,79 'charger':68 'circuit':71 'communic':2 'compris':25,62 'contain':4 'control':75 'convert':66 'coverag':39 'creat':10 'data':19 'dc/dc':65 'devic':20 'extern':34 'gps':44 'integr':70 'interconnect':15 'intern':56 'ion':52 'lead':46 'lithium':51 'local':32 'manag':58 'monitor':73 'network':13,28,35 'outsid':23 'portabl':1 'provid':38 'radio':16 'router':29 'rugged':7 'seal':45 'sla':48 'state':77 'system':3,61 'wireless':12,42 'world':24

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