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Piece Battery is a concept battery which absorbs heat energy and converts it into electric energy.It can be sticked on heat source(such as lampshade,kettle,and so on) by magnetism.When it is fully charged,it can be used as a wireless battery for your moblie device by sticking on its back.HEAT BATTERY is a recyclable battery which spreads the concept of discovering the waste heat energy in your daliy life.As it is thin and light,it can be a convenient energy supplement for mobile devices.
Zirui Cheng Ziyao Li Yijun Yu Qi Jin