How long does a Joy-Con last?

How long does a Joy-Con last? Additional Information: The Joy-Con controllers take approximately three and a half hours to fully charge. When fully charged, the battery for the Joy-Con controllers can last approximately 20 hours.

Additional Information: The Joy-Con controllers take approximately three and a half hours to fully charge. When fully charged, the battery for the Joy-Con controllers can last approximately 20 hours.
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