After posting in 2018, I haven’t been on the forum much. Now there are not many posts on the forum, so I will post a usage experience.
Previous post address http://bbs.ucar.run/thread_14485425_1_1.html
18-year itinerary: Starting from Weihai, Shandong, passing through Henan, Shaanxi, Chengdu, and Yunnan, to Tibet, then to Golmud on the Qinghai-Tibet line, then west to Xinjiang, and then back to Shandong. The whole journey is about 15,000 kilometers. There is no problem with the car, and the Transit car is still very good. It is durable and has been maintained once in Xinjiang. In terms of abnormal noise, it is mainly tableware. The aluminum profile frame itself is very strong and there is no problem.
As for the water tank, I changed it after I came back, and changed the original size of the water tank into a single water tank with a capacity of 200L, one water inlet pump, one water outlet pump, and the water outlet pump is respectively connected to the faucet, the RO membrane water purifier, and then connected to the small kitchen treasure. The hot water is then used for bathing.
The waste water from the water purifier flows back into the water tank, so no water is wasted. This ro-membrane water purifier is very useful all the way. I have never had diarrhea after drinking water, and I have never bought mineral water.
In terms of heat insulation, I don’t think there is much problem along the way. Xinjiang doesn’t feel too hot, and Tibet doesn’t feel too cold. It’s probably because the season is right, after all, I went in summer.
After I came back, the biggest part of the modification was the electric part. It used to be 12 liters of 54v and then 54v to charge the lithium battery, and the lithium battery was connected to a 54 liter 220v inverter.
So there is a problem, because the 12-54v inverter technology is immature, so the charging power is not large, at most 500 watts. Sometimes less than 200 watts. After researching after returning home, I changed it to 12v to 220v, and then the 220v charger charges the lithium battery. The charging current can be adjusted. I have 10 batteries, so the 20A charging current is set. Of course, the Transit generator is only 150A. Adjust the charging current of 30A, and it is estimated that the Transit generator will not be able to drive it.
In this case, the whole car is actually two sets of 220v inverter systems, one is 12v to 220v, and the other is 48v lithium battery to 220v. Generally, only the refrigerator works when driving, so only turn on 12v to 220v. In this case, it is enough to charge and bring a refrigerator. After the car stops, it will switch to the lithium battery for power supply. The two sets of power supply cannot be turned on at the same time, so it is also very safe.
The pictures of the circuit part are not easy to take, because they are all in the dark, so I will not upload the picture, but a picture of the modified water tank. This kind of water tank is cheap and easy to clean in the car.
Don’t tell me how good the bottom of the car is, stainless steel is not easy to get moss or something. It’s okay not to wash it for one or two years, but why not wash it for five or six years? The three-point water pipe I use is enough, and it is soft and can be rotated at will. There is really no need to use the six-point pipe for home use in the RV.