Just to let you know that remember that this battery is Sealed so what it means is that for those of you that would like to have a good Battery Life and Longevity you have 2 options, pay for a Battery Replacement after an average of 2 years, sometimes even faster depending on the Battery Charge Cycles, or try to use another approach in relation to the way you charge your phone.
In a summary, the recommended approach for this Li-ion Batteries is to charge between 40 to 80%, so what it means is that you charge just up to 80, then let it discharge to 40 and charge it again to 80 and repeat. It's a little confusing but I'm currently using that approach and maybe 3-4 times a month will charge do a Full Charge and discharge to re-sync the battery.
If you want to read more about this, go to this link,
How to Prolong Lithium-based Batteries - Battery University.