 The proposed improved guerrilla troops technique, IGTT, is an effective method for accurately estimating the parameters of proton exchange membrane fuel cells, PEMFCs. It combines the migration approach with a tangent flight strategy, TFS, to improve the exploitation phase and avoid getting stuck in local minima. Additionally, it uses a dual implementation of the migration approach to increase the exploration rate while reducing the risk of getting trapped in local minima. The IGTT was successfully applied to two PEMFC stacks, BCS 500W and Modular State Route 12, and its results were compared to those of other algorithms such as Gray Wolf Algorithm, GWA, Particle Swarm Optimization, PSO, Supply Demand Optimization, SDO, Flying Fox Optimizer, FFO, and Red Fox Optimizer, RFO. The IGTT outperformed all other algorithms in terms of accuracy and efficiency. This article was authored by Abdullah Shaheen, Reykab El-Sihimi, Atiyah El-Fergani, and others. We are article.tv, links in the description below.