How long is the warranty after battery replacement? Kingston Tang January 15, 2018 05:17 Follow After servicing, the battery comes with 90 days warranty against manufacturing defects. Have more questions? Submit a request 1 Comments Sharon Ng January 15, 2018 05:17 Hi there, could I ask how long does it take to change the battery? if I send on this Saturday, is it need to leave the phone there? Please sign in to leave a comment.