“Recently there has been a rumour that Galaxy S10 phones will have graphene batteries, which will not only reduce the charging time (from an hour to 12 mins) but also ensure protection against overheating. It would be a remarkable breakthrough in battery production technology if it turns out to be true. However, there must be some challenges and obstacles for the mass production of graphene batteries, to be equipped in flagship models due to the complicated manufacturing process. Need to wait and see how it will turn out. ” – Liz Lee