ow to charge your phone battery full within 30mins(esp.Andriod users).

 Hello, you just went to visit someone and there is power supply in which for you to charge your phone and you don't want to stay long. Just switch your phone to flight mode,I bet it with you within 30mins your phone will fully charge even when in low battery. After you ve through with the charging switch back your phone to normal mode(off flight mode).