Design and Simulation of Cellphone Charging System for a Shop in Nigeria. European Journal of Energy Research, [S. l.], v. 5, n. 2, p. 16–21, 2025. DOI: 10.24018/ejenergy.2025.5.2.162. Disponível em: https://ej-energy.org/index.php/ejenergy/article/view/162. Acesso em: 29 sept. 2025.