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The NBC 9-3-12 Digital Fast Charger is designed to simultaneously charge and store up
to twelve COMTEK 216 or 75 series receivers and/or transmitters. The charger will
charge 3 volt (two AA size batteries) or 9 volt nickel-metal hydride (Ni-MH) batteries. The
charger will automatically select the charging mode for the type of battery being used. It
is also equipped with a self-diagnostic capability to identify faulty batteries and to ensure
safe operation.
Nickel-metal hydride batteries can be recharged hundreds of times without generating a
significant loss of power capacity or battery memory problems. An analog-to-digital
voltage slope detector determines charge completion. If units are used only for a short
time, the batteries will automatically receive a short “top-off” charge. When batteries
reach a fully charged state, the NBC 9-3-12 charger will indefinitely maintain the batteries
in a fully charged state of readiness until units are to be used.