5 sentences

1. 我需要给手机充电。

   wǒ xū​yào gěi shǒu​jī chōng​diàn.

   I need to charge my phone.

   Source: Dong Chinese Dictionary

2. 我能给手机充电吗？

   wǒ néng gěi shǒu​jī chōng​diàn ma?

   Can I charge my phone?

   Source: OpenSubtitles

3. 我的手机电量不足，需要充电。

   wǒ de shǒu​jī diàn​liàng bù​zú, xū​yào chōng​diàn.

   My phone battery is low and needs to be charged.

   Source: Dong Chinese Dictionary

4. 我需要一个电源转换器来给我的电脑充电。

   wǒ xū​yào yī gè diàn​yuán zhuǎn​huàn​qì lái gěi wǒ de diàn​nǎo chōng​diàn.

   I need a power adapter to charge my computer.

   Source: Dong Chinese Dictionary

5. 很多上班族选择在周末参加培训班充电。

   hěn​duō shàng​bān​zú xuǎn​zé zài zhōu​mò cān​jiā péi​xùn​bān chōng​diàn.

   Many office workers choose to attend training classes on weekends to upgrade their skills.

   Source: Dong Chinese Dictionary