There are several synonyms for the phrase "maximum efforts." One option is "utmost exertion," which refers to giving one's all and not holding back. Another synonym is "full capacity," indicating that someone is performing at their highest level. "Total commitment" is also a synonym for maximum efforts, as it suggests complete dedication and dedication to achieving a goal. "Extreme dedication" is another option, emphasizing the intense and unwavering commitment required to achieve success. Finally, "maximum output" is a more straightforward synonym for maximum efforts, indicating the highest level of productivity and efficiency.