Chosen Solution
I replaced the battery on my mac with a “high-quality” one that i bought from ifixit, this is because the old battery lost its health and decided to get pregnant along the way (literally inflated and was damaging the unibody until i took it out). When i replaced the battery i had to charge it, i plugged it in (it had 37%) and it said it will 26 HOURS to charge to max. After alot of googling and researching i found out that maybe my charge circuit is damaged. every other person who has/had this issue had spilled something on or damaged their computer for this to happen, my computer is in perfect condition and this is the only issue. i found this post on ifixit: Slow charging time. Charging with 2.3 watts He has the same problem because he spilled something on his computer but i didnt. PREDICTION: maybe the unhealthy battery causes damage to the charge circuit? i also for some reason cannot run apple hardware test because everytime i try to start it just stays on the gray screen. Another weird thing is that sometimes my Magsafe plug gets positioned in a weird way and the light either turns off or turns green, when this happens my mac charges EXTREMELY fast and the magsafe heats up alot. could this be a damaged connector? actual answer appreciated :p Update (04/11/2016) no one have even a clue to how to fix this? ;-; Update (04/11/2016) also keep in mind the old battery was really messed up. i wanted to not spend money and buy a new battery, i had a early 2011 battery laying around with a different connector head, i tried to transplant the head from the old battery to the new one which didnt work so i bought a new battery. Does a messed up battery/wrong battery have an effect directly on the charging circuit or not?
Check the mag-safe port and see if something is in there blocking a good connection. Also use a toothpick to test the retractability of the pins on the adapter to see that they are extending fully.
