The grades of oil palm fresh fruit bunches (FFB) influences both processing and market values as this oil palm sector is highly contributed to Malaysia’s Gross Domestic Product (GDP). Traditional techniques used during the screening process must be enhanced in order to minimize the quantity of low-quality oil palm that is delivered to the mills for further processing. This study presents an innovative method to grading the oil palm, based on a fruit-based maturity sensor with charging technique. The sensor's sensitivity is evaluated by examining the relationship between the sensor voltage and the moisture content of the oil palm fruit, which is done with the use of several set of electrodes in this research. When a four-set of electrodes in fruit battery was utilized instead of a single set of electrodes, the sensitivity of the sensor improved by triple times for the range of 50 to 80 per cent moisture content, compared to the single-set of electrodes. The accuracy of fruit maturity grade is the common difficulty encountered throughout the receiving process, was substantially enhanced as a result of the suggested method.