The value of plant soil resistance is related to the water content in the soil under conditions of sufficient or water drought. When the water content in the plant's soil decreases, it can cause the plant to wither. In this study, the soil water conditions of the plants were tested in sufficient condition or experiencing drought based on the soil resistance value of the plant. The test results on plant soil are in a rectangular container having the dimensions of the parameters of length, width and height in centimeters. The results of the research on plant soils were in the container in the condition that the soil water content was sufficient, the soil resistance value R(t.c) = 40.5 kOhm. The condition of the plant soil experienced water drought, the value of soil resistance parameter R(t.k) = 51.2 kOhm. An indication of the water content of the plant's soil experiencing water dryness, the electronic switch from the electronic circuit equipment activates a buzzer sound. Then watering is carried out into the soil container of the plants experiencing water drought to prevent the plants from wilting, then the electronic switch deactivates the buzzer condition so that it does not sound.

Daya listrik motor listrik ac sebesar Pin = 310,4 watt menghasilkan putaran poros output digunakan menggerakkan putaran puli roda gigi flywheel menghasilkan kecepatan putar Vrpm(in)  = 347,8 rpm dengan torsi putaran parameter Tin = 8,53 Nm ditransmisikan menuju setiap masing-masing beban putaran puli roda gigi transmisi maju-1 s/d transmisi maju-4 dan transmisi mundur. Hasil penelitian pada kecepatan putar puli roda gigi flywheel parameter Vrpm(in) sebesar 347,8 rpm tersebut ditransmisikan menuju beban roda gigi transmisi maju-1 menghasilkan putaran Vrpm(maju-1) = 89,6 rpm, torsi Tout(maju-1) = 33,1 Nm dan daya mekanik Pout(maju-1) = 191,87 watt. Kemudian ditransmisikan menuju beban roda gigi transmisi maju-2 menghasilkan Vrpm(maju-2) = 162,7 rpm, Tout(maju-2) = 17,34 Nm dan Pout(maju-2) = 100,51 watt. Selanjutnya ditransmisikan menuju beban roda gigi transmisi maju-3 adalah Vrpm(maju-3) = 248,2 rpm, Tout(maju-3) = 11,36 Nm dan Pout(maju-3) = 65,85 watt. Ditransmisikan menuju beban roda gigi transmisi maju-4 menghasilkan Vrpm(maju-4) = 347,8 rpm, Tout(maju-4) = 8,11 N dan Pout(maju-4) = 47,01 watt. Untuk menuju beban roda gigi transmisi mundur menghasilkan Vrpm(mundur) = 75,4 rpm, Tout(mundur) = 37,44 Nm dan Pout(mundur) = 217,03watt.

Pengembangan daya mekanik penggerak putaran puli flywheel berasal dari sumber daya tenaga hasil pembakaran bahan bakar bensin digantikan menjadi sumber daya tenaga putaran poros output motor listrik ac. Daya tenaga putaran poros output motor listrik ac dengan kapasitas daya listrik sebesar Pin = 310,4 watt menghasilkan putaran puli flywheel dengan kecepatan putar Vrpm(in)  = 347,8 rpm, torsi putaran Tin = 8,53 Nm ditransmisikan menuju setiap masing-masing beban putaran puli roda gigi transmisi maju-1 s/d transmisi maju-4 dan transmisi mundur. Hasil penelitian parameter Vrpm(in) sebesar 347,8 rpm tersebut ditransmisikan menuju beban roda gigi transmisi maju-1 menghasilkan parameter mekanik putaran poros output Vrpm(maju-1) = 89,6 rpm, torsi Tout(maju-1) = 33,1 Nm dan daya mekanik Pout(maju-1) = 191,87 watt. Kemudian ditransmisikan menuju beban roda gigi transmisi maju-2 menghasilkan putaran poros output Vrpm(maju-2) = 162,7 rpm, Tout(maju-2) = 17,34 Nm dan Pout(maju-2) = 100,51 watt. Selanjutnya ditransmisikan menuju beban roda gigi transmisi maju-3 menghasilkan Vrpm(maju-3) = 248,2 rpm, Tout(maju-3) = 11,36 Nm dan Pout(maju-3) = 65,85 watt. Ditransmisikan menuju beban roda gigi transmisi maju-4 menghasilkan Vrpm(maju-4) = 347,8 rpm, Tout(maju-4) = 8,11 N dan Pout(maju-4) = 47,01 watt. Untuk menuju beban roda gigi transmisi mundur menghasilkan Vrpm(mundur) = 75,4 rpm, Tout(mundur) = 37,44 Nm dan Pout(mundur) = 217,03watt.

<p>The charging of DC accumulator that<br />experiences a lack of electric charge energy, usually<br />utilizes an AC input power from the PLN network. When<br />the AC input power from the PLN network is unavailable,<br />a DC power source is used from the backup DC<br />accumulator as a substitute. The research objective is to<br />design an internal DC accumulator charging using a<br />backup DC accumulator equipment based on inverter<br />and converter equipment. The charging system will use<br />input power from the backup DC accumulator to replace<br />the AC input power from the PLN network. The electric<br />voltage of the internal DC accumulator that is filled<br />(charged) is the initial condition of V<br />DC(Acu.Int.)= 8.76 Volts<br />until it reaches the normal condition of 12.05 Volts with a<br />capacity of charging current of 5 Ah (Ampere.hours)<br />absorbs electrical energy of W(Acu.Int.)<br /> = 16.45 Wh(Watt.hours). The results show that the equipment supply<br />a DC charger of 13.0 volts and PDC<br />of 21.32 watts to theinternal DC accumulator. The comparison of W<br />(Acu.Int.) to PDC produces time charging, t(charging)of 46.29 minutes</p>