Portable cooling systems, devices, and methods

A portable cooling device comprising:

• an inner housing comprising:
• a probe configured to measure a temperature inside the inner housing, and
• a compartment fan positioned in the inner housing and configured to circulate cooled air in the inner housing;
• a thermoelectric cooler comprising a first side and a second side opposite the first side, wherein the thermoelectric cooler is adjacent to the inner housing;
• an exhaust fan in communication with an environment external to the portable cooling device, wherein the exhaust fan is configured to vent heat from the second side of the thermoelectric cooler to the external environment;
• an external temperature probe configured to measure a temperature of an external environment;
• a processor coupled to a memory configured to store instructions;
• a first power source comprising one of:
• a battery, a universal serial bus, a cigarette lighter receptacle, or a wall transformer;
• and
• a second power source, different from the first power source, comprising one of:
• a battery, a universal serial bus, a cigarette lighter receptacle, or a wall transformer;
• wherein the first power source is configured to output a first range of input voltages to achieve a first desired temperature differential between an internal environment in the inner housing and the external environment,
• wherein the second power source is configured to output a second range of input voltages to achieve a second desired temperature differential between the internal environment in the inner housing and the external environment, and
• wherein the instructions, when executed by the processor, cause the processor to:
• compare the first temperature differential to the second temperature differential, and
• adjust, based on the comparison, an input voltage or power source to achieve the desired temperature differential and maintain the temperature inside the inner housing.

A portable cooling device comprising:

• a probe configured to measure a temperature inside the portable cooling device;
• a compartment fan configured to circulate cooled air in the portable cooling device;
• a thermoelectric cooler comprising a first side and a second side opposite the first side;
• an exhaust fan in communication with an external environment, wherein the exhaust fan is configured to vent heat from the second side of the thermoelectric cooler to the external environment;
• an external temperature probe configured to measure a temperature of an external environment;
• a processor coupled to a memory configured to store instructions;
• a first power source;
• and
• a second power source, different from the first power source;
• wherein the first power source is configured to output a first range of input voltages to achieve a first desired temperature differential between an internal environment in the portable cooling device and the external environment,
• wherein the second power source is configured to output a second range of input voltages to achieve a second temperature differential between the internal environment and the external environment, and
• wherein the instructions, when executed by the processor, cause the processor to:
• compare the first temperature differential to the second temperature differential, and
• adjust, based on the comparison, an input voltage or power source to achieve the desired temperature differential and maintain the temperature inside the portable cooling device.