1. ADATA power banks utilize rechargeable li-ion batteries. Rated capacities are affected by various factors including but not limited to ambient temperature, testing conditions, and methods. Rated capacities of ADATA power banks are all tested and approved by third party test labs under strict conditions. The available capacity of rechargeable batteries decreases gradually with time and number of uses.
2. When using an ADATA power bank to charge USB-C devices, please use the provided cable or a certified third-party cable for optimal charging.