**5. Conclusions**

The OBAOA algorithm is proposed in this paper to recognize the complicated parameters of the PEMFC model. In the present work, the practical reading of Ballard Mark V PEMFC is considered for the identification of seven unknown parameters (*ζ*1, *ζ*2, *ζ*3, *ζ*4, λ, *Rc*, and *b*). Based on the results obtained, the findings are as follows.


It is also worth noting that the proposed formulation will pique the attention of the fuel cell community, both researchers and practitioners, due to its capacity to solve problems effectively.

**Author Contributions:** Conceptualization: A.S. (Abhishek Sharma), A.S. (Abhinav Sharma) and S.R.; Methodology and formal analysis: A.S. (Abhishek Sharma), R.A.K. and D.K.; Investigation, A.S. (Abhishek Sharma), R.A.K. and S.R.; Writing—original draft preparation, A.S. (Abhishek Sharma), D.K. and R.A.K.; Writing—review and editing, A.S. (Abhinav Sharma) and S.R.; Supervision, A.S. (Abhinav Sharma) and S.R.; Fund acquisition: S.R. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** The data presented in this study are available on request from the corresponding author.

**Conflicts of Interest:** The authors declare no conflict of interest.
