Having broken a connector on a logic board in the past, I worried about all the steps. But I understand the disaster that can occur if cleaning fluid contacts the logic board. Weighing costs and benefits, I also did not remove the logic board. I loosened up the speakers (since only two screws could be removed) to give me space to slide the cards under the battery cells. Using the two cards, sometimes sliding one over the other, I was able to remove the battery in 15- 20 minutes. Removing the remaining adhesive was VERY tedious. Eventually I settled on CAREFULLY applying small amounts of remover with the syringe and using the spudger (both pointy and broad ends) to scrape the remainders off. I cleaned the residual with Q-tips dipped in remover (buy a big box of Q-tips), refastened the speakers, installed the new battery, closed the case and voila.