哪里有充电器买？

Nǎlǐ yǒu chōngdiànqì mǎi?

Where can I buy a battery charger?

你有充电器吗？

Nǐ yǒu chōngdiànqì ma?

Do you have a battery charger?

我借了他的充电器。

Wǒ jièle tā de chōngdiànqì.

I borrowed his battery charger.