So, as soon as Li Shan got home from work, he put the mysterious jade stone into a vacuum box along with this piece of crystal.

This vacuum box was specially purchased by Li Shan from the Internet, and it was specially intended to be used for vacuum treatment, but it has not been used yet.

The length and width of this vacuum box are about the same as ordinary 16K books, but the thickness is much thicker, made of all-metal, it looks very thick, and the sealing effect should be good. This vacuum box was originally used for vacuum preservation of food or medicine, but now it is used by Li Shan for vacuum treatment.

He placed the hedron and jade in the vacuum box, then pulled out the air from the box and pressed the lid tightly. If you want to see the results, you'll have to wait a few days.

Next, Li Shan thought about transforming the battery on the drone with the pulverized coal, the transformed battery can generate strong power, if this battery is used on the drone, it can greatly increase the distance and time of the drone's flight, which makes Li Shan always look forward to it. Li Shan had been brewing in his heart for a long time, and it was only at this time that he had time to start this matter.

The distance and length of time a drone flies often depends on the power of the battery. Judging from the effect of transforming ordinary batteries, the transformation of the battery of drones this time should not be a big problem, after all, there has been a successful experience.

Li Shanhu thought again,Once the UAV battery transformation is successful,It means that the battery power will increase significantly,If it is not restricted,Then the UAV's motor may not be able to withstand it,Therefore,You should add a power control device,This is a bit like a mobile phone charger,You can adjust the 220V household electricity to the voltage that the mobile phone can withstand。

This kind of modification work requires professional skills, so I can only go to Lao Gu to solve it, and it just so happens that the last time I asked to transform the camera, the work has already been completed. It's just that Li Shan was on a business trip, so he didn't pick it up in time.

In the face of Li Shan's request, Lao Gu said that it was impossible, mainly because there were too many accessories inside the drone, and there was no room for other accessories.

Li Shan's current drone is the one that Lao Gu gave him at the beginning, which belongs to the lowest generation of aircraft in the professional field, although it has been continuously transformed, the power of the battery and motor has been improved to a certain extent, but due to the constraints of factors such as the shape and some basic components, the space for this UAV to continue to improve is limited, and it is barely able to reach the level of the second-generation aircraft, and the bottom plate used to install accessories has basically been occupied, and there is almost no space for installing other accessories.

Lao Gu's suggestion is that it is better to change to a drone, so that there is much more room for improvement.

I know that what Lao Gu said is good, but due to his own tight funds, it is impossible to make too much investment, so he can only tap the potential value of this drone as much as possible to achieve its optimal performance.

"If you want to improve the performance of this drone, do you see what accessories need to be replaced?" Li Shan asked tentatively.

"All for all!" Lao Gu said without hesitation, which made Li Shan speechless for a while.

"Forget it, now it's better to think about helping me install that power regulator. Li Shan retreated and put forward the main purpose of this visit.

"Oh, aren't you embarrassing me?" Lao Gu frowned and said.

"Hehe, if you can transform it in this way, doesn't it seem that you are at a high level?" Li Shan deliberately praised Lao Gu.

"You kid don't put a high hat on me, I said that you kid is getting more and more unreliable now, and the ideas you come up with are all weird, I really don't know what you want to do! After Lao Gu finished speaking, he stopped paying attention to Li Shan and began to get busy with the things at hand.

The power adjustment thing is basically done, and then Li Shan began to transform the drone's battery. This matter is related to one's own secrets, so you can't fake others.

The battery he wanted to transform was replaced by Lao Gu on the drone he gave him, and because it was later replaced with a higher power battery, this battery was temporarily idle, and now it is best to use it for modification tests.

Through the relevant knowledge found on the Internet, I learned that the battery in my hand is a lithium battery. Lithium-ion battery is mainly composed of positive electrode, negative electrode, electrolyte, separator, shell and part, the positive and negative electrodes of lithium battery are composed of compounds that can be embedded in lithium ions, when the lithium battery is connected to the power supply, under the action of the external power supply, the lithium ions in the battery positive plate material flow to the negative plate of the battery through the electrolyte and the separator, and accumulate on the negative electrode material, so that the electromotive force of the battery is improved, that is, the charge of the battery: On the contrary, after the lithium battery is connected to the load, the positive ions embedded in the negative plate flow back to the positive plate through the electrolyte and the separator, and release electrical energy to the outside.

Due to the experience of successfully modifying ordinary dry batteries last time, Li Shan is also full of confidence in this transformation of lithium batteries.

His confidence mainly comes from the mysterious coal, this mysterious coal does not know whether it is coal or not, but when it is added to the ordinary dry battery, and it is a little little, but the performance of the battery has made a geometric leap, after loading the ordinary laser pointer, it can shoot a powerful laser, which is really a bit incredible.

In Li Shan's eyes, this piece of coal is simply a treasure, as for what other uses it will have, it is unknown, just what it has embodied so far is enough to subvert his perception of this world.

Although only a very small part of the dry battery is used, it is a little less when it is used, and when it is always used up, thinking of this, Li Shan can't help but be a little distracted.

The last time he remodeled the dry battery, he grinded a small part of the coal into fine particles, and he carefully collected some of the remaining unused pieces, not even a little dregs.

Li Shan is not very clear about how much to add, and can only be measured according to the amount of dry batteries put in the last time.

Looking at the instructions on the outer packaging of the battery, one of the warnings is not to throw into the fire to avoid explosion, and do not disassemble the battery without permission to avoid danger.

Li Shan didn't care about this, he directly used a surgical knife to cut the metal outer packaging of the battery, and as soon as he made a small cut, he saw that some liquid oozed out of the incision, which should be a non-aqueous electrolyte.

He held the pliers in his left hand and grabbed the battery with needle-nose pliers in his right hand, and the metal skin of the battery was pulled outward, so that the incision widened a little, revealing a small hole.

Li Shan laid the battery flat on the table, with the bare holes facing upward. Then he opened a small paper packet and unfolded it to reveal the black powder inside, and he used a toothpick to carefully dial the coal dust down the small hole into the battery.

Then, the metal sheath was re-sealed and a layer of welding glue was applied to the outside.

The glue dries quickly, and it doesn't take long for it to solidify.

It will take some time for the pulverized coal to fuse with other components inside the battery, so Li Shan made a simple launch device. This device is actually very simple, the main thing is to draw out the positive and negative poles of the battery, connect with the positive and negative poles of the laser attacker, and in addition, a control switch is installed in the middle to control the start of the laser attacker.

This experiment is relatively simple, Li Shan didn't want to run to the mountains, one was troublesome, and the other was that deep in his heart, he felt that he and Qinling Mountain were not in charge, and he went twice to make a lot of trouble, the first time he went to debug the laser gun, but he fought with others on the way back, and caused a chaos, but the second time he met two guys who robbed the house, and he almost lost his life.

Therefore, when Qinling Mountain was mentioned, Li Shan unconsciously had a fear in his heart.

After thinking about it, Li Shan decided to take the risk of doing it at home, but this would have to face the risk of the wall being broken down.

For this reason, Li Shan also went to a construction site outside, picked up a few bricks and came back, and when his mother saw it, he was a little surprised: "The two lingzi of the house next door, the old ones were flustered, I haven't seen them for a few years, the cars are all on, and I move here and that from time to time, you are good, I didn't see you take anything useful to the house, and now I have picked up these broken bricks, which is really more and more interesting." ”

Looking at his mother's serious expression, Li Shan's heart moved, and he leaned over to his mother and whispered, "Have you ever heard of Qin bricks and Han tiles?"

"What, you're saying these bricks are..."

"Shh Li Shan made a silent gesture and blinked mysteriously, and then went back to his room, leaving his mother with an inexplicable face.

According to past experience, lasers cannot penetrate the walls of the hut, and this wall is also four red bricks thick, in order to prevent accidents, Li Shan specially got six bricks to strengthen the thickness of the wall.

He arranged the six bricks in a row, aimed the laser at the bricks, and then taped the laser gun to prevent it from moving around.

Now that you're all set, it's time to start experimenting.

When Li Shan confidently pressed the switch, he thought that after the laser made a soft sound, a hole would appear in the brick.

However, the laser didn't move at all!

Is there something wrong? He flipped the switch a few more times, but there was still no response.

By searching the relevant information on the Internet, Li Shan is relatively clear about the structure of the battery, but he has no idea how the mysterious pulverized coal reacts with other chemicals, so he can only rely on this test to verify it.

Is it due to a mistake when installing pulverized coal in the battery?

With this question, in the next few days, Li Shan found a few more rechargeable batteries and repeatedly experimented, but the results were not different.

Li Shan originally had great hopes. If this test is successful, then this powerful battery only needs to be charged in the future, and there is no need to worry about the loss of pulverized coal, but the current test results are obviously not as Li Shan expected.

Could it be that this kind of pulverized coal can only be used for that kind of dry battery, but not for this kind of rechargeable battery? At present, it seems that this is the case, that is to say, the mysterious pulverized coal is a kind of consumable, and once it is used up, the laser can no longer be used.

On this day, Li Shan just wanted to go out, but was stopped by his mother, and she asked with a nervous expression: "Xiaoshan, you tell me the truth, seeing that you have been mysterious and mysterious a few days ago, are you pouring cultural relics? This is a criminal thing, we can't do it." ”

Li Shan was a little puzzled when he heard this, and thought to himself where this is, so he said, "Mom, what are you talking about?"

My mother felt that Li Shan was pretending to be confused, so she was a little anxious: "It's the pieces you brought home two days ago, and that thing ......" After speaking, she also drew a square shape to Li Shan.