After returning home from a recent long vacation, Xiao Zhang found a classic car parked at home, even if it wanted to start, it made a clicking sound that could not return to the sky. When I was hesitating to change the battery, a DIY idea popped up - to make a homemade emergency starter power supply for a classic car. **The car emergency starting power supply of the big brand** is more than 200 yuan, but it is better to make one by hand, which is both cost-effective and creative.
After flipping through the disassembly of some car emergency starting power supplies**, he found that the core of these products is actually a lithium battery and a charging pad, and the connector of the ignition is directly connected to the battery, bypassing the circuit board. This inspired him to buy a model airplane battery directly and weld it with the appropriate joints, which should make a lower cost emergency starting power supply.
After some searching, he decided to choose 4 strings of lithium iron phosphate batteries, so that even if they are stored in the car for a long time, they do not have to worry about safety issues, and the maximum voltage is 146V, compared to 12 of ternary lithium batteries6V is more conducive to multiple boots. I spent 50 yuan to buy a 4-string lithium iron phosphate battery with a capacity of 4ah, and then welded an EC5 connector myself, plus the shopping platform 17 yuan car with an electric crocodile clip, the entire emergency starting power supply was so simple to make, the total cost is only 67 yuan.
Of course, this DIY project wasn't entirely smooth sailing. During the production process, Xiao Zhang found that the battery he purchased was not marked with a discharge rate, which made him a little worried about whether it could meet the needs of car starting. However, he decided to give it a try first, as the DIY project itself is a process of practice and experimentation.
In order to charge, Xiao Zhang directly used the model airplane battery charger. If you don't have a friend with a model battery charger, you can also consider buying a 4-string lithium iron phosphate protection board, which is about 11 yuan. Then, weld an XM2 according to the definition provided by the sellerThe 54 female connector is connected to the balance head of the battery, and then a Type-C connector is connected, so that you can use an ordinary charger for charging.
After the production was completed, he deliberately put the battery power to the loss voltage, the total voltage was reduced to 12V, and then tried to start the car. Unexpectedly, the classic car actually started easily, which gave him confidence in this DIY project. It is believed that in the case of full power, this emergency starting power supply can easily cope with multiple starts, and there is no need to worry about safety issues at all.
The success of this DIY project gave Zhang a taste of the joy of hands-on creation. Compared to buying a finished emergency starter, making it yourself not only saves money, but also allows you to customize it according to your individual needs. Of course, there were some challenges along the way, but it was these challenges that made the whole experience more interesting and rewarding.
In the process, Zhang learned how to choose the right type of battery, how to weld and assemble, and how to solve the problem of charging. These skills have not only been applied in this DIY project, but have also opened up more possibilities for my future car maintenance and other DIY projects.
Overall, this DIY project not only successfully solved the problem of starting a classic car, but also gave him more gains in terms of technology and creativity. For those who like to get their hands dirty, such a DIY project is definitely a fun and rewarding experience.
Through this successful DIY experience, Xiao Zhang has a deeper understanding of automotive power systems. Hands-on crafting is not only a way to solve problems, but also a way to improve your skills and broaden your horizons. In the future, we look forward to continuing to explore the field of automotive technology and discover more interesting possibilities.