Hippo Lithium Battery with Japanese technology. Smartphone battery capacity will naturally decrease over time. Hippo Battery is a replacement battery solution with guaranteed quality, durability, and warranty, equipped with Double IC Protection to prevent overcharging and short circuits, making it more durable and safe. Before checking out the ORIGINAL HIPPO Battery, please read the following: 1. 1 Year Official Warranty (Unit Replacement) 2. Warranty Claims via Expedition (shipping costs borne by the buyer for round trip) 3. Items already purchased cannot be exchanged. Why should you choose an ORIGINAL HIPPO Battery for your iPhone? 1. ORIGINAL HIPPO Battery uses Japanese Lithium battery technology. 2. Capacity matches original. 3. Double IC Protection. The warranty is not valid if: 1. The protective layer is damaged/torn/scratched. 2. The IC is not original from Hippo (Replaced/Modified). 3. Incorrect installation. The package consists of: 1x Battery, 1x Warranty Card, 1x Adhesive Glue. Warning: 1. Installation is recommended to be done by a trained technician to avoid damaging the battery. 2. New batteries need 5-10 charge cycles to function at normal capacity as they require adaptation and synchronization with the gadget. 3. Store in a cool place and avoid extremely hot temperatures. When unboxing, a video unboxing is required. Without a video unboxing, the warranty is VOID.