Features: This is a high-quality lithium polymer cell, ensuring safety. 3.7V, 1200mAh large capacity, not oversized in capacity. Multiple intelligent management systems effectively guarantee safety during the charging process. Effectively prevents short circuits and battery leakage, resulting in a battery with fine durability. 4 types are available for you to choose from, you can choose according to your needs. Specifications: Name: Rechargeable Battery Material: Plastic Type: 4 optional Item Size: 71 * 51 * 29mm / 2.80 * 2.01 * 1.14in Item Weight: 100g / 3.53ounce Package Size: 100 * 100 * 50mm / 3.94 * 3.94 * 1.97in Package Weight: 150g / 5.29ounce Packing List: 1 * Rechargeable Battery Please pay attention to the size and dimensions of the product when purchasing to ensure it meets your needs. The title and description provide detailed information about the product, including its features and specifications. We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!