cell phone charging, is it to late? or will it be fine ?

I’ve had my phone for 3 days i didn’t know untell the second day i was supposed to charge it for 24 hours so i put it on at 4 pm that night. i’ve charged it over night for 8 hours on the first day . will m battery still be fine ? im with bell and i have a HTC phone , i dont know which one seeing as its not on the website yet . Please help cause my boyfriend says within the first week your fine, but my friend says you have to do it as soon as you get it or your phone battery will be screwed up .

To condition your battery, charge is fully then use it until it is nearly dead and then recharge it. that is the best way to ensure long life.

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