The conversation between human and AI assistant.
[|Human|] Classify the below items based on the type of current they use, AC or DC.
charging of batteries, fans, bulbs, air conditioners
[|AI|] AC: fans, bulbs, air conditioners
DC: charging of batteries
[|Human|] 
Classify the below items based on the type of current they use, AC or DC.
charging of batteries, fans, bulbs, air conditioners