What type of batteries does the remote control require, and are there any precautions?
The remote control uses AAA size batteries. You should not mix old and new batteries, and you must not mix alkaline, standard (carbon-zinc), or rechargeable (nickel-cadmium) batteries. Keep batteries out of reach of children due to ingestion risk. (Page 2)
From the official Frigidaire FFRE053WAE Window-Mounted Room Air Conditioner manual, page 2
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