How does it work? GoSun Team August 04, 2021 15:37 Updated GoSun Chillest works similar to your household fridge, but much more efficient. A brushless compressor circulates refrigerant through a condenser coil (hot side) and an evaporator coil (cold side) which is embedded in an insulated chamber. Related articles How much electricity does it use? How long does the Built-In Battery last? Comments 0 comments Article is closed for comments.