|| T. B. Groom, J. R. Gabl, and T. L. Pourpoint, "Portable Power Generation for Remote Areas Using Hydrogen Generated via Maleic Acid-Promoted Hydrolysis of Ammonia Borane," Molecules, vol. 24, no. 22, Nov 8 2019.|
 S. Chalasani and J. M. Conrad, "A survey of energy harvesting sources for embedded systems," in IEEE SoutheastCon 2008, 2008: IEEE, pp. 442-447.
 F. K. Shaikh and S. Zeadally, "Energy harvesting in wireless sensor networks: A comprehensive review," Renewable and Sustainable Energy Reviews, vol. 55, pp. 1041-1054, 2016.
 H. Ko, J. Lee, S. Jang, J. Kim, and S. Pack, "Energy Efficient Cooperative Computation Algorithm in Energy Harvesting Internet of Things," Energies, vol. 12, no. 21, 2019.
 M. Zareei et al., "Enhancing the Performance of Energy Harvesting Sensor Networks for Environmental Monitoring Applications," Energies, vol. 12, no. 14, 2019.
 T. Wilberforce, A. Alaswad, A. Palumbo, M. Dassisti, and A. G. Olabi, "Advances in stationary and portable fuel cell applications," Int. J. Hydrogen Energy, vol. 41, no. 37, pp. 16509-16522, 2016.
 Y.-S. Chen, S.-M. Lin, and B.-S. Hong, "Experimental Study on a Passive Fuel Cell/Battery Hybrid Power System," Energies, vol. 6, no. 12, pp. 6413-6422, 2013.
 P. Bajpai and V. Dash, "Hybrid renewable energy systems for power generation in stand-alone applications: A review," Renewable and Sustainable Energy Reviews, vol. 16, no. 5, pp. 2926-2939, 2012.
 J. Lagorse, D. Paire, and A. Miraoui, "Sizing optimization of a stand-alone street lighting system powered by a hybrid system using fuel cell, PV and battery," Renewable Energy, vol. 34, no. 3, pp. 683-691, 2009.
 M. Alsharif, "A Solar Energy Solution for Sustainable Third Generation Mobile Networks," Energies, vol. 10, no. 4, 2017.
 J. W. Choi and D. Aurbach, "Promise and reality of post-lithium-ion batteries with high energy densities," Nature Reviews Materials, vol. 1, no. 4, pp. 1-16, 2016.
 M. W. Ellis, M. R. Von Spakovsky, and D. J. Nelson, "Fuel cell systems: efficient, flexible energy conversion for the 21st century," Proc. IEEE, vol. 89, no. 12, pp. 1808-1818, 2001.
 V. Velisala, G. N. Srinivasulu, B. S. Reddy, and K. V. K. Rao, "Review on challenges of direct liquid fuel cells for portable application," World Journal of Engineering, vol. 12, no. 6, pp. 591-606, 2015.
 L. Carrette, K. Friedrich, and U. Stimming, "Fuel cells–fundamentals and applications," Fuel cells, vol. 1, no. 1, pp. 5-39, 2001.
 T. Zhang and Q.-M. Wang, "Performance of miniaturized direct methanol fuel cell (DMFC) devices using micropump for fuel delivery," J. Power Sources, vol. 158, no. 1, pp. 169-176, 2006.
 V. Das, S. Padmanaban, K. Venkitusamy, R. Selvamuthukumaran, F. Blaabjerg, and P. Siano, "Recent advances and challenges of fuel cell based power system architectures and control – A review," Renewable and Sustainable Energy Reviews, vol. 73, pp. 10-18, 2017.
 Y.-D. Kuan, S.-M. Lee, and M.-F. Sung, "Development of a Direct Methanol Fuel Cell with Lightweight Disc Type Current Collectors," Energies, vol. 7, no. 5, pp. 3136-3147, 2014.
 Y. Zhu, J. Liang, C. Liu, T. Ma, and L. Wang, "Development of a passive direct methanol fuel cell (DMFC) twin-stack for long-term operation," J. Power Sources, vol. 193, no. 2, pp. 649-655, 2009.
 F. Achmad, S. K. Kamarudin, W. R. W. Daud, and E. H. Majlan, "Passive direct methanol fuel cells for portable electronic devices," Applied Energy, vol. 88, no. 5, pp. 1681-1689, 2011.
 M. Z. F. Kamaruddin, S. K. Kamarudin, W. R. W. Daud, and M. S. Masdar, "An overview of fuel management in direct methanol fuel cells," Renewable and Sustainable Energy Reviews, vol. 24, pp. 557-565, 2013.
 M. Sgroi et al., "Cost Analysis of Direct Methanol Fuel Cell Stacks for Mass Production," Energies, vol. 9, no. 12, 2016.
 S. K. Kamarudin, F. Achmad, and W. R. W. Daud, "Overview on the application of direct methanol fuel cell (DMFC) for portable electronic devices," Int. J. Hydrogen Energy, vol. 34, no. 16, pp. 6902-6916, 2009.
 X. Li and A. Faghri, "Review and advances of direct methanol fuel cells (DMFCs) part I: Design, fabrication, and testing with high concentration methanol solutions," J. Power Sources, vol. 226, pp. 223-240, 2013.
 N. Marx, L. Boulon, F. Gustin, D. Hissel, and K. Agbossou, "A review of multi-stack and modular fuel cell systems: Interests, application areas and on-going research activities," Int. J. Hydrogen Energy, vol. 39, no. 23, pp. 12101-12111, 2014.
 B. Vulturescu, A. De Bernardinis, R. Lallemand, and G. Coquery, "Traction power converter for PEM fuel cell multi-stack generator used in urban transportation," in 2007 European Conference on Power Electronics and Applications, 2007: IEEE, pp. 1-10.
 J. Cardozo, N. Marx, L. Boulon, and D. Hissel, "Comparison of Multi-Stack Fuel Cell System Architectures for Residential Power Generation Applications Including Electrical Vehicle Charging," in 2015 IEEE Vehicle Power and Propulsion Conference (VPPC), 2015: IEEE, pp. 1-6.
 C.-C. Wu and T.-L. Chen, "Dynamic Modeling of a Parallel-Connected Solid Oxide Fuel Cell Stack System," Energies, vol. 13, no. 2, 2020.
 H. Cheng, Chang, H. Yen, and Chang, "A Dynamic Analysis of the Multi-Stack SOFC-CHP System for Power Modulation," Energies, vol. 12, no. 19, 2019.
 Y. Kim et al., "System integration of a portable direct methanol fuel cell and a battery hybrid," Int. J. Hydrogen Energy, vol. 35, no. 11, pp. 5621-5637, 2010.
 X. Hu, X. Wang, J. Chen, Q. Yang, D. Jin, and X. Qiu, "Numerical Investigations of the Combined Effects of Flow Rate and Methanol Concentration on DMFC Performance," Energies, vol. 10, no. 8, 2017.
 C.-J. Chou, S.-B. Jiang, T.-L. Yeh, L.-D. Tsai, K.-Y. Kang, and C.-J. Liu, "A portable direct methanol fuel cell power station for long-term internet of things applications," Energies, vol. 13, no. 14, p. 3547, 2020.
 T. Leo, M. Raso, E. Navarro, and E. Mora, "Long Term Performance Study of a Direct Methanol Fuel Cell Fed with Alcohol Blends," Energies, vol. 6, no. 1, pp. 282-293, 2013.
 J. Pielecha, K. Skobiej, and K. Kurtyka, "Exhaust Emissions and Energy Consumption Analysis of Conventional, Hybrid, and Electric Vehicles in Real Driving Cycles," Energies, vol. 13, no. 23, p. 6423, 2020.
 J. Woodcock et al., "Public health benefits of strategies to reduce greenhouse-gas emissions: urban land transport," The Lancet, vol. 374, no. 9705, pp. 1930-1943, 2009.
 P. Rode et al., "Accessibility in cities: transport and urban form," in Disrupting mobility. Cham: Springer International Publishing, 2017, pp. 239-273.
 M. Aftabuzzaman and E. Mazloumi, "Achieving sustainable urban transport mobility in post peak oil era," Transport Policy, vol. 18, no. 5, pp. 695-702, 2011.
 M. Brenna et al., "A review on energy efficiency in three transportation sectors: Railways, electrical vehicles and marine," Energies, vol. 13, no. 9, p. 2378, 2020.
 S. Adheesh, M. S. Vasisht, and S. K. Ramasesha, "Air-pollution and economics: diesel bus versus electric bus," Current Science, pp. 858-862, 2016.
 O. Topal and İ. Nakir, "Total Cost of Ownership Based Economic Analysis of Diesel, CNG and Electric Bus Concepts for the Public Transport in Istanbul City," Energies, vol. 11, no. 9, 2018.
 L. Lu, X. Han, J. Li, J. Hua, and M. Ouyang, "A review on the key issues for lithium-ion battery management in electric vehicles," Journal of Power Sources, vol. 226, pp. 272-288, 2013.
 Z. Gao et al., "Battery capacity and recharging needs for electric buses in city transit service," Energy, vol. 122, pp. 588-600, 2017.
 J.-Q. Li, "Battery-electric transit bus developments and operations: A review," International Journal of Sustainable Transportation, vol. 10, no. 3, pp. 157-169, 2014.
 M. Rogge, S. Wollny, and D. U. Sauer, "Fast charging battery buses for the electrification of urban public transport—a feasibility study focusing on charging infrastructure and energy storage requirements," Energies, vol. 8, no. 5, pp. 4587-4606, 2015.
 X. Zhang and G. Wang, "Optimal dispatch of electric vehicle batteries between battery swapping stations and charging stations," in 2016 IEEE Power and Energy Society General Meeting (PESGM), 2016: IEEE, pp. 1-5.
 Y. Zheng, Z. Y. Dong, Y. Xu, K. Meng, J. H. Zhao, and J. Qiu, "Electric Vehicle Battery Charging/Swap Stations in Distribution Systems: Comparison Study and Optimal Planning," IEEE Transactions on Power Systems, vol. 29, no. 1, pp. 221-229, 2014.
 K. An, W. Jing, and I. Kim, "Battery-swapping facility planning for electric buses with local charging systems," International Journal of Sustainable Transportation, vol. 14, no. 7, pp. 489-502, 2019.
 T. H. Wu, G. K. Pang, K. Choy, and H. Lam, "An optimization model for a battery swapping station in Hong Kong," in 2015 IEEE Transportation Electrification Conference and Expo (ITEC), 2015: IEEE, pp. 1-6.
 J. Moon, Y. J. Kim, T. Cheong, and S. H. Song, "Locating battery swapping stations for a smart e-bus system," Sustainability, vol. 12, no. 3, p. 1142, 2020.
 W. Choi and J. Kim, "Electrification of public transportation: Battery swappable smart electric bus with battery swapping station," in 2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014: IEEE, pp. 1-8.
 H. Shen, X. Wang, J. Wang, Y. Xie, and W. Wang, "Vision based battery exchange robots for electric vehicle," in 2012 IEEE International Conference on Mechatronics and Automation, 2012: IEEE, pp. 2472-2476.
 Y. Cheng and J. Tao, "Optimization of A Micro Energy Network Integrated with Electric Bus Battery Swapping Station and Distributed PV," in 2018 2nd IEEE Conference on Energy Internet and Energy System Integration (EI2), 2018: IEEE, pp. 1-6.
 M. Hemmati, M. Abapour, and B. Mohammadi-ivatloo, "Optimal Scheduling of Smart Microgrid in Presence of Battery Swapping Station of Electrical Vehicles," in Electric Vehicles in Energy Systems: Modelling, Integration, Analysis, and Optimization. Cham: Springer International Publishing, 2020, pp. 249-267.
 T. B. Reddy, Linden’s handbook of batteries. McGraw-Hill Education, 2011.
 Y. Wang et al., "A comprehensive review of battery modeling and state estimation approaches for advanced battery management systems," Renewable and Sustainable Energy Reviews, vol. 131, p. 110015, 2020.
 H. A. Gabbar, A. M. Othman, and M. R. Abdussami, "Review of Battery Management Systems (BMS) Development and Industrial Standards," Technologies, vol. 9, no. 2, p. 28, 2021.
 H. Rahimi-Eichi, U. Ojha, F. Baronti, and M.-Y. Chow, "Battery management system: An overview of its application in the smart grid and electric vehicles," IEEE Industrial Electronics Magazine, vol. 7, no. 2, pp. 4-16, 2013.
 M. T. Lawder et al., "Battery energy storage system (BESS) and battery management system (BMS) for grid-scale applications," Proceedings of the IEEE, vol. 102, no. 6, pp. 1014-1030, 2014.
 X. Hu, S. Li, and H. Peng, "A comparative study of equivalent circuit models for Li-ion batteries," Journal of Power Sources, vol. 198, pp. 359-367, 2012.
 J. Cao, N. Schofield, and A. Emadi, "Battery balancing methods: A comprehensive review," in 2008 IEEE Vehicle Power and Propulsion Conference, 2008: IEEE, pp. 1-6.
 D. Lim and A. Anbuky, "A distributed industrial battery management network," IEEE Transactions on Industrial Electronics, vol. 51, no. 6, pp. 1181-1193, 2004.
 M. Chin-Sien, N. Kong Soon, and H. Yao-Ching, "Parallel Operation of Battery Power Modules," IEEE Transactions on Energy Conversion, vol. 23, no. 2, pp. 701-707, 2008.
 Y. Zhang, R. Zhao, J. Dubie, T. Jahns, and L. Juang, "Investigation of current sharing and heat dissipation in parallel-connected lithium-ion battery packs," in 2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016: IEEE, pp. 1-8.
 Y. Li and Y. Han, "A module-integrated distributed battery energy storage and management system," IEEE Transactions on Power Electronics, vol. 31, no. 12, pp. 8260-8270, 2016.
 K.-H. Lin, L.-R. Yu, C.-S. Moo, and C.-Y. Juan, "Analysis on parallel operation of boost-type battery power modules," in 2013 IEEE 10th International Conference on Power Electronics and Drive Systems (PEDS), 2013: IEEE, pp. 809-813.
 D.-I. Stroe, M. Swierczynski, S. K. Kær, and R. Teodorescu, "Degradation behavior of lithium-ion batteries during calendar ageing—The case of the internal resistance increase," IEEE Transactions on Industry Applications, vol. 54, no. 1, pp. 517-525, 2017.
 G. Piłatowicz, A. Marongiu, J. Drillkens, P. Sinhuber, and D. U. Sauer, "A critical overview of definitions and determination techniques of the internal resistance using lithium-ion, lead-acid, nickel metal-hydride batteries and electrochemical double-layer capacitors as examples," Journal of Power sources, vol. 296, pp. 365-376, 2015.
 S. Lee and J. Kim, "Inrush current estimation and hot-swapping for safe parallel battery pack," International Journal of Electronics, vol. 107, no. 10, pp. 1609-1624, 2020.
 C.-T. Hsu, S. Sheng, Q. Sun, P. Li, and B. Lehman, "Increased energy delivery for parallel battery packs with no regulated bus," in Intelec 2012, 2012: IEEE, pp. 1-8.
 C.-J. Chou, S.-B. Jiang, T.-L. Yeh, and C.-C. Sun, "Fault-Tolerant Battery Power Network Architecture of Networked Swappable Battery Packs in Parallel," Energies, vol. 14, no. 10, p. 2841, 2021.
 A. S. Aricò, V. Baglio, and V. Antonucci, "Direct methanol fuel cells: history, status and perspectives," Electrocatalysis of direct methanol fuel cells, pp. 1-78, 2009.
 T. S. Zhao, W. W. Yang, R. Chen, and Q. X. Wu, "Towards operating direct methanol fuel cells with highly concentrated fuel," J. Power Sources, vol. 195, no. 11, pp. 3451-3462, 2010.
 C. Xie, J. Bostaph, and J. Pavio, "Development of a 2W direct methanol fuel cell power source," J. Power Sources, vol. 136, no. 1, pp. 55-65, 2004.
 "LG Chem commercializes portable fuel cell," Fuel Cells Bulletin, vol. 2005, no. 11, 2005.
 "Latest DMFC prototypes from Toshiba, Hitachi," Fuel Cells Bulletin, vol. 2003, no. 12, 2003.
 (01 March 2020). EFOY COMFORT Technical data [Online]. Available: https://www.efoy-comfort.com/technical-data.
 J. Jiang and C. Zhang, Fundamentals and applications of lithium-ion batteries in electric drive vehicles. John Wiley & Sons, 2015.
 D. Andrea, "Battery Management Systems for Large Lithium Battery Packs," in Library of Congress Cataloging-In-Publication Data, 2011.
 I. Pavić, M. Beus, V. Bobanac, and H. Pandžić, "Decentralized master-slave communication and control architecture of a battery swapping station," in 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC/I&CPS Europe), 2018: IEEE, pp. 1-6.