Amazon.com: Winnerplusa Battery kit for iPhone 3GS 3G Include The Tool Sets 2 in1 : Cell Phones & Accessories
I was planning to use my old iPhone 3GS for weekend project but I discovered that the screen was popped out and the back was bulging, I took it apart and this
R.I.P iPhone 3GS : r/spicypillows
Original Battery replacement for iPhone 3GS
For Iphone 3gs Battery 100% New 1420mah Replacement Battery For Iphone 3gs With Repair Tools Kit - Mobile Phone Batteries - AliExpress
Battery Upgrade Kit - iPhone 3GS
OEM Apple iPhone 3gs Battery 616-0433 Internal Replacement for sale online | eBay