The Honor 90 pro can be adjusted for slow charge and fast charge by following the steps: Go to Settings - Battery - Charge and select \"Slow Charge\" or \"Fast Charge\" mode to adjust. In slow charge mode, the phone is charged at a lower current to protect battery life; In fast charge mode, the battery can be quickly filled. According to the actual needs, choose the appropriate charging mode, which can not only extend the battery life, but also meet the needs of fast charging.