hey guys. i ordered my first mech mod today along with some efest 18650 button tops .i was reading that it is dangerous to charge these batteries above 4.2 volts or below 3 volts. i went with the nitecore intellicharger i2 for charging. does this charger automatically know how to keep the battery at 4.2 max/3.0 min, or do i need to manually make sure that it is charged to the right voltage. idk how i could possibly know what voltage the battery is at so I'm assuming this charger can do that for me but in the event that i am wrong i just wanted to hear your guys thoughts. i have never owned and barely used a mech mod before. i am extremely excited but i want to make sure that i am vaping in a safe manner. thanks guys!!!