Hi guys ,This is my 1st post on macrumors , i bought a macbook pro couple years ago , and about few months before , the battery is dead and swelling , so i sent it to apple store for check up and repair , it end up with the battery & logicboard spoilled , and the repairer told me i have to replace both of them , because of the fees is too expensive even just to replace the battery , i decided to use it without battery 1st , it work pretty well , without the battery and just plugged in the charger , turned on and everything goes smooth ( except a bit of lag ). few days ago , i ordered a new battery from ebay , but it dint work after i plugged in , the charger remain green , and screen show not charging , battery condition shows replace now. I was like , wtf? ,then i tried to switch to bootcamp , with window 7 , it shows thr are 65% battery , but plugged in , not charging , after i pull off the charger plug , it went off immediately , whats wrong with it? really need help ! The battery is totally new and it have power inside , so whats the problem? computer shows the percentage but cant work without charger! , the charger always turn green .