10 reasons why your phone battery keeps dying

You're not charging properly

Batteries are more complicated than you might realise and there's much confusion about how to treat them.Metal hydride batteries benefit from being allowed to run down fully. This means all battery cells are used equally, preferable because it means no cells are overworked to compensate. However, the vast majority of smartphone batteries are the lithium ion type.These don't benefit from being allowed to charge down fully, as the lower the charge, the harder the battery has to work, increasing wear on all cells. Keep the battery charge above 20 percent to avoid this and use the mains when convenient, as batteries only have a finite amount of charging cycles before they die.