: For iPhones 11 and newer, you may need a battery programmer (often found on eBay ) to transfer the original battery’s BMS (Battery Management System) board to the new one.

Available at Walmart , this $17.99 kit offers an upgraded 4500mAh capacity to extend daily uptime. Genuine OEM Battery Options

For those who want to maintain original performance and minimize software errors, genuine OEM parts (often pulled from other working devices) are available through specialized electronics retailers. A2846 Genuine New Battery for 2023 iPhone 15 tekdep.com Go to product viewer dialog for this item.