I replaced the battery. But only last week I put it on charge. With genuine apple charger. But in the morning the battery had swollen up. Popping the screen.. I still have my i fixit tool kit so i checked the battery and it was soft like jelly. I checked about replacement and I was directed to the Australian site. Where the price is double the price i paid for the same battery i had sent from I fixit in CA. Also the postage in Australia. Was over "$15 dollars. Looks like the Australian store is robbing us locals and the last one from the US WAS shipped by air … Would management care to explain . The reasons.. ?????