I hear a lot of self-contradictory information on mobile batteries. It is best to charge up your mobile battery and keep it charged between use or to use it completely and then put it on the charger? Then I also hear that if you leave it to charge even after the battery is fully charged, that can damage the battery. I am perplexed. I want help from you guy about what exactly can I do for longevity of mobile batteries? Keep it charged before use or charge it when it requires it or dead? Please get back to me at the earliest.