How long do the Joy-Cons last?

How long do the Joy-Cons 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.