Abstract: This paper aims to develop a portable power supply with a modular battery pack that is charged through a solar panel and controller that can provide the Dumagat Tribe in Norzagaray, Bulacan access to basic electric needs. Their needs were calculated using schedule of loads and the system was designed in accordance to PEC Article 6.09 (Solar PV Systems). Data was assessed by monitoring voltage levels using Arduino and statistical treatment was used to determine any significant differences in charging and discharging rates. The system is equipped with the following major components: inverter, a 12V battery pack with battery management system (BMS), a rectifier circuit, portable solar panel, solar charger controller, and a 3D-printed enclosure. Interpretation of the data shows that the charging and discharging rates of the battery during the 3-day duration of testing is fairly consistent. Hence, the following objectives were achieved: determine the energy requirements of the main outpost area of the Dumagat tribe located in Norzagaray, Bulacan, to develop a portable power supply system that will satisfy the aforementioned demands, to measure the effectiveness of the system in delivering energy to the tribe through quantitative means and provide renewable energy for lighting and basic electric purposes. The following recommendations are suggested: 1) To further improve the battery pack by using higher quality (higher capacity) 18650 battery cells to prolong usage duration, 2) To utilize a much more powerful solar panel that is preferably much more compact than the one used in this study, and 3) To try different types of batteries, such as Li-Po. Keywords: Portable Power Supply, Modular Battery Pack, Solar Charger Controller, Solar Panel, Inverter, Battery Management System. Title: DESIGN OF A SOLAR-BASED PORTABLE POWER SUPPLY WITH MODULAR BATTERY SYSTEM FOR THE DUMAGAT TRIBE IN NORZAGARAY, BULACAN Author: John Kimsfer Gozano, Ryuto Lorenzo, Lorenz Anthony Sobrevega, Zamhuel John Taberdo, Engr. John Christopher Yacap International Journal of Electrical and Electronics Research ISSN 2348-6988 (online) Vol. 11, Issue 3, July 2023 - September 2023 Page No: 8-17 Research Publish Journals Website: www.researchpublish.com Published Date: 18-July-2023 DOI: https://doi.org/10.5281/zenodo.8159802 Paper Download Link (Source) https://www.researchpublish.com/papers/design-of-a-solar-based-portable-power-supply-with-modular-battery-system-for-the-dumagat-tribe-in-norzagaray-bulacan

International Journal of Electrical and Electronics Research, ISSN 2348-6988 (online), Research Publish Journals, Website: www.researchpublish.com