Abstract: Hybrid energy storage refers to systems that combine multiple storage technologies and aim to improve energy efficiency while reducing costs. These systems are employed to balance fluctuations in energy demand, manage the intermittency of renewable sources, and ensure continuity in energy supply. This study comprehensively examines the design and performance of hybrid energy storage systems with three battery technologies. By analyzing the characteristics of lithium-ion (Li-ion), lead-acid batteries (LA), and supercapacitors (SC), the study evaluates energy efficiency and cost mitigation. Simulations conducted using MATLAB Simulink revealed critical parameters such as energy flow, load balancing, and system stability. The integration of supercapacitors and lead-acid batteries within the high-power class in the system has established a complementary balance. This balance has enabled lead-acid batteries to reduce the need for supercapacitors by a factor of five, thereby lowering costs and extending the system’s operational lifespan. A Brushless DC motor (BLDC) is attached to the model as the load. Results show that the implemented model provides reliable, sustainable and economic advantages for energy storage systems. The research sheds light on the innovative potential of hybrid systems.