Meaning of chōng diàn:
充电
to recharge (a battery); (fig.) to recharge one's batteries (through leisure); to update one's skills and knowledge
Wǒ xūyào gěi shǒujī chōngdiàn.
我需要给手机充电。
I need to recharge my phone.
Zhōumò tā jìhuà qù hǎibiān chōngdiàn.
周末他计划去海边充电。
He plans to go to the beach to recharge his batteries over the weekend.
Wǒ zuìjìn zhèngzài xuéxí xīn kèchéng lái chōngshí hé chōngdiàn.
我最近正在学习新课程来充实和充电。
I am currently taking new courses to enrich myself and update my skills.