1 sentence

1. 更换电池要全部一起更换，不要将新旧电池混合使用。

   gēng​huàn diàn​chí yào quán​bù yī​qǐ gēng​huàn, bù​yào jiāng xīn​jiù diàn​chí hùn​hé shǐ​yòng.

   Please replace all batteries at the same time, do not mix old and new batteries.

   Source: CCMatrix