Mumbai - Battery Explosion in Samsung's Galaxy Note 7 smartphone has shocked every Samsung users. To join the league of shockers, Big B has tweeted against Samsung. Big B has a problem that he can't charge his phone more than 60%, when will I charge my phone up to 100% Mr. Samsung tweeted Amitabh Bachchan. Amitabh Bachchan asked Samsung to reply fast or else he will switch to I Phone.