The battery pack is one of the potential parts to be developed on a laboratory scale. The battery pack is a unit of several rechargeable battery cells assembled in series-parallel. Battery packs are generally equipped with a Battery management system (BMS). BMS is an electronic circuit that functions to limit the current and voltage entering the battery in the charging process when the battery is full. This will certainly prevent short circuits and increase battery life. As one of the vocational education institutions, SMK are expected to be able to read and take advantage of existing opportunities related to the increasing number of national vehicles and the acceleration of battery-based electric vehicles according to Presidential Regulation number 5 of 2019. In line with the link and match agenda of vocational universities with SMK, this community service team took the initiative to collaborate with SMK together with PTV as a facilitator and SMK teachers as SMK partners. This training activity begins with preparing an electric vehicle battery pack prototype and testing it in the automotive engine laboratory, engineering drawing and computing studio and DUDI partner workshops. At the end of the training, an evaluation was carried out in the form of a questionnaire on the success of the battery assembly training activities using a linkert scale. As a result, the battery assembly training which activities are measuring and monitoring battery pack, increase the knowledge of teachers about how to assemble 18650 lithium ion batteries according to the requirements of the motor that is used.
Penelitian ini bertujuan untuk mengembangkan bahan bakar polypropylene sebagai bahan bakar alternatif.Dengan melimpahnya sampah plastik di sekitar kita, sampah tersebut dapat dijadikan bahan baku bahan bakaralternatif dengan proses pirolisis. Hal tersebut dilakukan dengan memisahkan senyawa hidrokarbon dalampolypropylene pembentuk plastik. Dalam kenyataannya tanpa proses lanjutan setelah pemanasan awal bahanbakar tersebut belum mampu memberikan hasil optimal ketika digunakan. Adapun upaya sederhanameningkatkan kemampuan bahan bakar polypropylene ini dengan menambahkan zat aditif. Dalam pengujianbahan bakar polypropylene ini digunakan sepeda motor bermesin bensin yang diuji unjuk kerja padadinamometer. Hasil penelitian menunjukkan bahwa daya terbesar diperoleh pada pengujian dengan campuranbahan bakar VP-Power dengan polypropylene dan oli sintetis yaitu sebesar 34,7 Hp.
The development of electric vehicles in Indonesia, especially the BEV (Battery Electric Vehicle) type, has received serious attention and support from the government. This is evidenced by the issuance of Presidential Regulation Number 55 of 2019 concerning the acceleration of the Battery-Based Electric Motor Vehicle Program for Road Transportation. Electric vehicles designed and developed in this study use an on-wheel BLDC type electric motor, Li-Ion batteries and are equipped with a watt hour meter to monitor battery consumption. The results of testing the accuracy and precision of the watt hour meter show a good value. This is evidenced by the difference in the measurement value of the watt hour meter against theAvometer and the difference between each repetition of the data 5 times which is below 1 Volt and 1 Ampere. Other test results show that the track with a large slope will also experience a large voltage drop, namely 0.8 V at a slope of 100 and the maximum current flowing is 8.35 A. Meanwhile, when the slope of the track is 70 and 60, the battery voltage decreases and the current flowing respectively are 0.5 V and 8.12 A; as well as 0.2 V and 7.84 A.
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