Verbseoul.
하다 verb

충전하다 conjugation (chungjeonhada, to charge or recharge (a battery or an electronic device))

To say to charge or recharge (a battery or an electronic device) politely in the present tense, use 충전해요 (choong-chuhn-hae-yoh) · chungjeonhaeyo. Below is the full conjugation of 충전하다 across the three tenses and three everyday speech levels.

Grammar note (하다 verb): 하다 verbs are formed with a Sino-Korean noun + 하다 (e.g. 공부하다 = study + do). 하다 conjugates irregularly: the ㅏ in 하 contracts with the -아/-어 suffix to give 해 (not *하어). Present polite: 해요; past polite: 했어요. The formal ending is 합니다 (not *하습니다). Most noun+하다 compounds follow this pattern uniformly. See all 하다 verbs →

Conjugation table

pron. = pronunciation guide  · RR = Revised Romanization

Highlighted = where the stem changes

TenseCasual (반말)Polite (요)Formal (합니다)
Present
충전해
choong-chuhn-hae
chungjeonhae
충전해요
choong-chuhn-hae-yoh
chungjeonhaeyo
충전합니다
choong-chuhn-hahm-nee-dah
chungjeonhamnida
Past
충전했어
choong-chuhn-hae-ssuh
chungjeonhaesseo
충전했어요
choong-chuhn-hae-ssuh-yoh
chungjeonhaesseoyo
충전했습니다
choong-chuhn-hae-sseum-nee-dah
chungjeonhaesseumnida
Future
충전할 거야
choong-chuhn-hahl guh-yah
chungjeonhal geoya
충전할 거예요
choong-chuhn-hahl guh-yae-yoh
chungjeonhal geoyeyo
충전할 겁니다
choong-chuhn-hahl guhm-nee-dah
chungjeonhal geomnida

Other useful forms

Honorific / Command Polite (-(으)세요)
충전하세요
choong-chuhn-hah-sae-yoh
chungjeonhaseyo
Suggestion / Let's Polite (요)
충전해요
choong-chuhn-hae-yoh
chungjeonhaeyo
Question Polite (요)
충전해요?
choong-chuhn-hae-yoh-?
chungjeonhaeyo?
Connective "and" — (고)
충전하고
choong-chuhn-hah-goh
chungjeonhago
Conditional "if" — (면)
충전하면
choong-chuhn-hah-myuhn
chungjeonhamyeon
Progressive (고 있어요)
충전하고 있어요
choong-chuhn-hah-goh ee-ssuh-yoh
chungjeonhago isseoyo
Want to (고 싶어요)
충전하고 싶어요
choong-chuhn-hah-goh shee-puh-yoh
chungjeonhago sipeoyo
Can / Able to ((으)ㄹ 수 있어요)
충전할 수 있어요
choong-chuhn-hahl soo ee-ssuh-yoh
chungjeonhal su isseoyo
Because / So (아/어서)
충전해서
choong-chuhn-hae-suh
chungjeonhaeseo
Noun form — (기)
충전하기
choong-chuhn-hah-gee
chungjeonhagi
Noun form — (음)
충전함
choong-chuhn-hahm
chungjeonham