What does 充電 mean?
充電 is a Japanese noun meaning “charging (electrically)” in English. It can also be translated as “recharging one's batteries (e.g. by taking a nap)” depending on context. It is written as 充電 in kanji, じゅうでん in hiragana, and juuden in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
この電池は充電されている。
This battery is charged.