Plug-in energy storage batteries and networked plug-in energy storage batteries

A battery unit network comprising:

• a first battery unit and a second battery unit, wherein the first battery unit and the second battery unit each comprises:
• a battery unit housing;
• and
• a battery unit circuit, wherein the battery unit housing contains at least a portion of the battery unit circuit, and wherein the battery unit circuit further comprises:
• a battery cell;
• an inverter to control the charging and discharging of the battery cell;
• a processor to provide inverter control signals to the inverter for controlling the charging and discharging of the battery cell;
• and
• a transceiver to provide processor signals to the processor, wherein the inverter control signals are at least partially based on the processor signals;
• one of:
• a power plug for coupling to and uncoupling from a power outlet assembly;
• and a luminaire base for coupling to and uncoupling from a luminaire socket in a light fixture;
• wherein the first battery unit and the second battery unit are each rated at less than or equal to 2400 Volt-Amperes;
• wherein the first battery unit stores a first amount of energy and the second battery unit stores a second amount of energy;
• wherein the first battery unit wirelessly receives first SControl signals, wherein the control of the charging or discharging of the first battery unit is based on the first SControl signals;
• and
• wherein the second battery unit wirelessly receives second SControl signals, wherein the control of the charging or discharging of the second battery unit is based on the second SControl signals.