Product Description: Bring your iPhone 12 or iPhone 12 Pro back to life with the Yesido 2815mAh Replacement Battery! Engineered to provide a reliable, long-lasting power source, this battery is designed to restore your device to its optimal performance. Whether you're experiencing battery drain, boot loops, or the “service battery” warning, this replacement battery is the ideal solution. Technical Specifications: Capacity: 2815mAh Voltage: 3.83V Watt Hours: 10.78 Wh Battery Type: Lithium Polymer (Li-Po) Compatibility: iPhone 12 & iPhone 12 Pro Key Features: Long Battery Life: Enjoy up to 24 hours of power with normal usage, 12 hours of talk time, and approximately 36 hours of standby time, depending on background apps and settings. High-Quality Materials: Assembled using a high-quality chipset from Texas Instruments to ensure reliable performance and durability. Factory Tested: 100% factory tested with a 95% capacity or higher and a customer return rate of just 1%. Pre-Installed Battery Adhesive: The battery comes with pre-installed adhesive for easier installation and improved repair quality. Trusted by Experts: Spot tested by iFixit staff in San Luis Obispo, CA to confirm consistency and quality. Instructions & Safety Tips: Installation Tips: If your iPhone doesn’t turn on after installation, please reinstall the ribbon cable, check the connector, and ensure it’s properly clipped. Charge your phone for at least 20 minutes before attempting to power it on. Avoid Overheating: Do not place the battery near a heat source or expose it to excessive temperatures (above 45°C). Always charge the battery at room temperature (0°-45°C). Caution: Do not open, crush, puncture, or expose the battery to fire or water. These actions pose a fire, explosion, or burn risk. Safe Disposal: Do not dispose of the battery in fire or water and avoid any damage to the battery’s outer casing.