Shǒujī méi diàn le, jiè wǒ yòng yíxià chōngdiànbǎo.
My phone's dead — lend me your power bank for a sec.
Tips
memory
Literally 'charging treasure'. Shared power banks you rent by the hour (共享充电宝) are everywhere in Chinese cafes and restaurants — look for the little kiosk by the door.
