The Internal Battery for OnePlus 5 & 5T BLP637 3300mAh Replacement with ToolsKit is a high-quality Li-ion battery designed for OnePlus 5T and OnePlus 5 models. Made from durable aluminium material, this black battery comes with a manufacturer warranty of 1 year and has a capacity of 3300 mAh. The sleek design and glossy finish add a stylish touch to your phone while ensuring longer battery life. Perfect for those looking to replace their old or worn-out battery, this OEM product is a reliable choice for your mobile phone needs.