Key Features Certified High-Capacity Power: 48V, 15Ah (720Wh) high-density cell configuration engineered for sustained high-torque output Designed for Hynox ebikes: Compatible with Trooper and Trooper X Seamless Factory Integration: Designed for an exact, rattle-free fit inside the Hynox custom frame compartment, ensuring flawless connection with your bike’s original terminal block and controller. Important Purchasing Notes Charger Not Included: This is a standalone battery unit. Hazmat Shipping & Final Sale: Due to strict federal shipping regulations regarding high-capacity lithium-ion batteries, all battery purchases are final sale and non-returnable.except in the case of verified manufacturer defects or quality issues