The person who went to the river to charge the next day was replaced by Li Jing to lead the team, and Ding Chen stayed in the apartment.Since he didn't go, Rogge had no interest in chopping wood, and followed Li Xiang's hunting team into the mountains under the mobilization of Zheng Yu.This is also the first time that Rogge has set off with a team other than Ding Chen since joining the apartment.In the past, she had always followed Ding Chen's actions, and there were already some strange rumors among the middle-aged and elderly women in the apartment.Ding Chen's limelight has not been weak since he arrived at the apartment, because he has made great contributions to the apartment in a short period of time, and he is obviously pursuing Ye Dai, everyone loves the house and birds, and he has a good impression of Ding Chen, and directly regards him as the son-in-law of the apartment.But in this way, everyone naturally has a bad opinion of Rogge, an outsider who suddenly jumped out to grab the apartment son-in-law, the men are a little better, and the women, especially the middle-aged and elderly women, have a particularly strong opinion.Fortunately, when Rogge and Ding Chen went out together, a third person was present every time.Especially after Zheng Yu showed his affection for Rogge, rumors about Rogge's character did not continue to increase.After all, Zheng Yu's family still has a lot of influence in the apartment, and the woman that his youngest son has a crush on can't watch her reputation dive.Of course, it is very important to go to the river to connect the generator to charge the battery, but the technical content in the whole process is not high, Li Jing has already seen Ding Chen do it once, with this child's comprehension ability, he is completely capable of operating independently, so this time Ding Chen did not follow the past.Ding Chen stayed in the apartment, preparing to toss out at least one electric car to use.He brought back a total of 72 batteries, all of which were used to provide lighting power, which was a bit wasteful.And Daddy and Hoss's suggestion is very reasonable, there is no need for electricity in the apartment, it is better to use the precious electricity to do something more important.There are many important things, and it is not that you can decide it three times, but the transformation of the means of transportation is definitely the most important thing at this stage.Of course, this result is also divided into time periods, and if it is a busy farming time, this seat has to be given to agricultural machinery.At least in yesterday's five-person meeting, Ding Chen's work today was ranked at the forefront, so not only was Zheng Tai, who had the greatest strength, stayed, but Ye Dai did not go to the basement to stab the butt of the bullet shell, but stayed to help Ding Chen.This is not the first time Ding Chen has entered the apartment's agricultural machinery warehouse, but it is the first time he has comprehensively inspected the inventory.The last time he renovated the corn thresher, he only opened the warehouse for farm tools, and this time he opened the warehouse where the transport tools were stored.There are not many means of transportation here in the apartment, most of them are tractors and tractors, and there is not a car in the real sense.Considering that the other warehouse is full of agricultural equipment, Ding Chen estimates that the vehicles equipped here should not be responsible for transportation.According to Ding Chen's speculation, the apartment should have been built in the late new energy era, but what made him feel strange was that most of the large agricultural machinery here was fuel-driven.Judging by the date of manufacture on the nameplate, this is completely unconscionable.However, since he had no way of guessing what the people who built this place in the past thought, of course he was not interested in guessing.Picked an electric tricycle in the garage and pushed it out.In Ding Chen's memory, this kind of walk-behind tricycle was once quite popular, and some European countries once imported thousands of fuel tricycles from China for transporting materials on low-intensity battlefields, and greatly appreciated the seaworthiness of this vehicle.In the cities of China, because they do not need much power, electric tricycles are popular and bloom everywhere, and later many large cities even had to issue bans to ban such civilian vehicles to make room for cars.Basically, you don't need to practice driving this kind of car, as long as the motor nerves are not too bad, you can get started directly.The tricycle uses the lowest-cost rubber battery, and the quality is not comparable to the battery that Ding Chen brought back from the power plant, or even the lead-acid battery used in Ding Chen's portable lamp.In the past, it was used on a large scale for civilian use, simply because it was low-cost and maintenance-free.However, in the view of people like Ding Chen, who came from the manufacturing industry, the so-called maintenance-free is basically equivalent to not being able to maintain.Ding Chen dismantled the original battery, which had been seriously aged on the outside, removed the motor, disassembled the inner shell and carefully inspected it, and carefully cleaned the internal components with a coarse cloth.The structure of the brushless motor is relatively simple, so this motor is still well preserved.However, during the first link test, Ding Chen found that the motor did not rotate at all, and the multimeter measurement found that the motor control circuit did not have an output voltage, which was obviously a damage to the components.The brushless motor needs to adjust the current frequency through the control circuit to achieve the purpose of changing the number of revolutions, so Ding Chen has no way to bypass these electronic components anyway, so he has to go back to the warehouse to find a replacement.Generally speaking, the service life of semiconductor components is significantly lower than that of mechanical products.Because for mechanical products, the most common corrosion phenomenon will be delayed as the corroded surface deepens, and the performance of semiconductor components in this regard is very insignificant.This feature made Ding Chen suffer a little, there were few electric vehicles that could be used in the warehouse, and after all were removed, only one board could be used at that time, but it smoked after a few more attempts.Fortunately, among the tools that Ding Chen brought back from the power plant were electric soldering iron and solder, and with these things and Ding Chen's half-hanging technology, he removed the modules from under other circuit boards and put them together, and finally put together a piece that could be used.By the time he had installed the ill-fated electric tricycle, it was getting dark again, and the three of them didn't even bother to eat lunch.Except for the time when he was disassembling parts, Zheng Tai was basically at the point where he had nothing to do, so at this time, he was sitting with Zheng Xiao on the side with a knife to cut wood.Winter is coming, Zheng Xiao wants a spinning top to play on the ice, Zheng Tai of course wants to satisfy his son, just take this opportunity to start work.Seeing the rear wheels of the tricycle being erected rotating rapidly under the electric drive, Ding Chen was in a good mood, wiped his hands with a rag and said, "When I get the machine tool when I get back, my uncle will give you an iron car." ”Since witnessing Ding Chen's understatement of the six "drifters" who attacked the apartment, Zheng Xiao and several other children have admired Ding Chen so much.So after hearing Ding Chen's words, although Zheng Xiao didn't know what a machine tool was, nor did he know what a "car" was, he understood the word "iron", and immediately jumped up happily and shouted: "I want iron, I want iron." ”Ding Chen laughed, and Zheng Tai scolded: "Don't you give this wood to someone else." ”Six-year-old Zheng Xiao was not slow to react at all, and immediately changed his words and shouted: "I want wood too." ”Zheng Tai saw Ding Chen turn off the power switch of the tricycle and planned to put down the rear wheels that had been erected, so he handed the knife and spinning top in his hand to his son and went over to help.Ye Dai stood aside and clapped her hands and said, "Zheng Xiao, when you grow up, don't see one like now, ask for one." ”Ding Chen's heart suddenly weakened, and his hand slipped, if it weren't for Zheng Tai's strength, he held it up in time, and the wheel would have smashed into Ding Chen's feet.Zheng Tai let go of his hand and glanced at Ding Chen.As the boss of the Zheng family, he is not as lively as Zheng Yu, he usually doesn't talk much, he looks old and stubborn, but his brain is not stupid at all, so he naturally knows why Ding Chen missed.However, Ding Chen's bubble is not his sister, so this matter is not in his hands.Ding Chen coughed and shouted to Zheng Xiao: "Do you want to go out with your uncle" Zheng Xiao has the demeanor of his own uncle in many aspects, and his action is off the charts, after listening to Ding Chen's words, he agreed, threw the things in his hand, and climbed into the car.Ye Dai frowned and said, "Don't have anything wrong." ”"What can happen" Ding Chen said with a smile: "I'll just drive slowly on the highway, at most lie down, and there is no danger if it breaks down." ”Seeing that Ye Dai no longer spoke, he smiled again: "You can't come" "You go." ”Ye Dai said: "I pack up the tools. ”So Ding Chen looked at Zheng Tai again, Zheng Tai hurriedly shook his head, so Ding Chen picked a few tools from the ground that might be used and threw them into the carriage, got into the car and screamed, and left in the dust in Zheng Xiao's excited screams.Ye Dai looked at Ding Chen's back, shook her head and smiled: "Sometimes, I don't think he is as old as Zheng Yu. ”Zheng Tai laughed, shook his head and did not speak.aa2705221，，； mobile phone reading,