What type of batteries does the F01 require, and are rechargeable batteries okay to use?
The F01 requires 4 x 1.5V AA dry batteries, which are not included. Rechargeable batteries are not recommended because most rechargeable batteries only output 1.2V, which is below the required working voltage of 4.5–6V. (Page 3)
From the official Petory F01 manual, page 3
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