Shenzhen Tianyi Battery Technology Co., Ltd. Dongguan Branch is a professional mobile phone accessories manufacturer with 15 years experience. Located in Dongguan, Guangdong China, we have 8 assembly lines equipped with advanced automatic machines aiming at providing high quality cell phone batteries,as well as all phone battery for purchase. Our company set up in 2008,We have always been devoted to offering customers service like brand authorized agents for products, and OEM & ODM .with wholesome delivery system.Provide brand design, planning, marketing and a series of supporting services.We have superb pre and after-sales service.