For a 1200W air conditioner, if it runs continuously for a day (assumed to be 24 hours), then the electric energy it consumes can be calculated in the following way:
Electric energy (kWh) = power (kW)×time (h)
=1.2kW×24h
=28.8kWh
So, a 1200W air conditioner will consume 28.8 kilowatt-hours of electricity when running for a day. This value is based on the assumption that the air conditioner runs continuously for 24 hours. In actual situations, since the air conditioner automatically adjusts the working mode (such as cooling, heating, standby, etc.) according to the indoor temperature, and there may be power on and off operations, the actual consumption Battery capacity may vary. However, the above calculation provides a theoretical reference for the maximum power consumption.