My iPhone 7 Plus battery was starting to show signs of bulging and I thought it was high time I replaced the battery. I chose the first online store that popped up on google, it was phonepartworld. I browsed through their products, then their policies and found that they are genuine replacement parts sellers. I didn't think twice, I bought an iPhone 7 Plus replacement battery and adhesive. The products arrived after 3 days in secure packaging. I made the repairs in 15 minutes while watching a tutorial, quite simple. I saved a fair bit doing the repair by myself. I recommend phonepartworld's replacement parts, they're good