: Known for high-quality parts, the iFixit iPhone 5c Battery Fix Kit includes a tested 1510mAh battery and all necessary specialized tools like pentalobe screwdrivers and suction cups.
: A hub for third-party "High Capacity" options. While the original capacity is 1510mAh, some sellers like XYIRMCYF claim much higher mAh ratings, though performance may vary.
You can find various options ranging from budget cells to comprehensive DIY kits: