i can't play on my 3DS anymore

oh well, you guys know about my defective 3DS battery, i could still play on it while charge but, i already noticed this before but now it's worse, i noticed the battery expanding inside of the console, and now the battery is even more expended, i still can't find any to buy here and i wont turn on my 3DS anymore until i got a new one, and i need to take out the battery soon as possible becuase the battery can leak and screw up with my 3DS, but another problem i don't have any screwdriver to open it, so well, i wont turn on my 3DS anymore until i get a new battery, this will took a long time, don't have any battery here and with this problem of importation taxes idk how it would cost to import one from ebay, even more because not every seller from ebay send it to brazil

so i'm fucked :''''/




UPDATE
i just went to some store and bought a set of screwdrivers, they are not that good but i could open my 3DS, look to this battery :/