I received new battery (replacement) from the samsung costumer service since i have issues with my phone's battery. Now i'm in doubt whether i should do initial charging(6 hours straight charging) with my new battery or to unplug the charger once it signals that it is already full. The person who entertained me in the costumer service told me that there is no need for initial charging but still i'm in doubt since it is new battery. What should i do? to do initial charging or not? I hope you can help me with my problem