Three batteries of new batteries - small, light, with enormous capacity... provided the Pioneer with lighting, heating, propulsion... for a continuous fifteen-day journey in a submerged position...
G. Adamov. "The Mystery of Two Oceans"
It is unlikely that the great science fiction writers of yesteryear expected that they would fail with a seemingly reliable theme - . Or rather, with the lack of the power that was unanimously predicted for them. But the tasks of the batteries, which we decided to test in the next annual examination, are much more mundane: turning starters and helping generators. This time we are checking the “European” ones, which fit into the dimensions of 242x175x190 mm. Different manufacturers have fit into this volume of just over eight liters declared capacities from 60 to 66 Ah. In total, we purchased 28 batteries from company stores: with receipts, guarantees, etc.
All that remains is to compare their actual power supply. This is where modern science fiction begins...
Judge for yourself: the spread in the original reserve capacity is 17-fold. For some reason, the weight indicated on the label exceeds the true weight by kilograms. And five batteries were afraid of the Russian frost of three tens of degrees!
No, the science fiction writers were clearly optimists. But our numbers are real.
The measurements were carried out by specialists from the Research Center AT 3 Central Research Institute of the Russian Ministry of Defense. The test results refer to a specific sample of batteries and are not general criteria for their quality.
HOW THE POINTS WERE ASSIGNED
Based on the measurement results recorded in the protocol, points were assigned: in each type of test, the best and worst results were taken, assigning them 5 points and 1 point, respectively. All other participants received intermediate points according to the position they occupied between the leader and the outsider. For example, if, when measuring reserve capacity, the leader showed a result of 124 minutes, and the outsider - 81, then the participant with a result of 105 minutes received 3.23 points. And so on for all five types of tests. The final score is the arithmetic average of five intermediate scores. We did not introduce weighting coefficients that increase the significance of one parameter in relation to others: all parameters were recognized as equivalent. The figures we present allow anyone to make their own calculations. It is clear that the arrangement of seats will certainly change.
Reserve capacity
Shows how long a car with a damaged alternator will last. An expert will say differently: how many minutes will it take for the voltage at the terminals of a battery delivering a current of 25 A to the load to drop to 10.5 V. Measurements are carried out at a temperature of 25 °C. The higher the result, the better.
The best result was shown by MULTI: 124 min.
Worst - avtoSil: 81 min.
Reduced starting energy by declared current
Characterizes the battery energy in starting mode. The test is carried out at -18 °C. First, the battery is discharged with the declared cold cranking current Ixp for 30 s, then the voltage U30 is recorded at its terminals. After a pause of 20 s, the battery is discharged with a current equal to 60% of the declared Ixp until the voltage at the terminals drops to 6.0 V. The discharge time t6 is recorded. The reduced starting energy is calculated using the formula:
E = 0.3I xn (U 30 - 6.0)t 6
The higher the final score, the better.
The best result is MEDALIST: 28.21 kJ.
The worst is “Kursk Accumulator” 6 ST‑60N: 10.37 kJ.
Reduced starting energy with a single current
Allows you to compare the current characteristics of all batteries under the same conditions, regardless of their rating data. The test is carried out at -18 °C. First, the battery is discharged with a current of 450 A for 30 s and the voltage U30 is recorded at its pole terminals. After a pause of 20 s, the battery is discharged with a current of 270 A until the voltage at the terminals drops to 6.0 V. The discharge time t6 is recorded. The reduced starting energy is calculated using the formula:
E = 135(U 30 - 6.0)t 6.
The higher the score, the better.
The best result is MEDALIST: 34.73 kJ.
The worst is “Kursk Accumulator” 6 ST‑60N: 6.86 kJ.
Reduced starting energy with a single current at -29 °C
Similar to previous tests, the only difference is the temperature. The higher the score, the better.
Best result - VARTA: 8.85 kJ.
The worst are “Kursk Accumulator” 6 ST-60N, START. BAT, “Podolsk battery” 6 ST-62N, ACDelco M62-H3, Energizer PLUS EP60-L2X:
they all gave up before the end of the test.
THE ACTUAL ENERGY CONSUMPTION OF NEW BATTERIES VARY 17 TIMES. SHAME ON THE SELLERS!
Reduced starting energy with a single current after testing for vibration resistance
Vibration resistance is an indicator of the build quality of a product.
The batteries are mounted on a wooden pallet in the back of a heavy truck and shaken for 16 hours on cobblestones. The root mean square value of vibration accelerations in the frequency range 0.7–22.4 Hz is 2.77–4.29 m/s².
Measurements of current characteristics are carried out according to the method of the previous paragraphs. The higher the score, the better.
The best result is a-mega Innovative Hybrid 6 ST-60-A3: 34.82 kJ.
The worst is “Kursk Accumulator” 6 ST-60N: 9.33 kJ.
WELL FORGOTTEN NEW
A well-known saying takes on a new meaning in the context of batteries. You pay the seller for a new battery, and then find out that they sold you a product that had been sitting in a dusty warehouse for a long time. With a guarantee and other pieces of paper, but at the same time dressed up to the point of indecency. Therefore, before starting tests, we make sure to charge all batteries! And we present their reserve capacity at the time of purchase in the table for reference only: they say, people, know what kind of crap they can slip you. But this parameter is not involved in the distribution of seats.
"According to Einstein's vile theory"
Vysotsky sang about a change in the passage of time, but we observed a change in mass. Almost all samples are much lighter than the label says! We leave the interpretation of this fact to the manufacturers. Our option: banal saving of lead. And those who do not indicate the mass seem to be out of business. As they say, keep quiet - you will pass for smart...
WHERE TO FLY TO GET A BATTERY
Science fiction is fiction, but how to choose? Persistently looking for the next Zarulevsky winner in the store? If you do not want to contact the service or the help of the seller, then the algorithm is as follows. You need to take the one that fits in the niche allotted to it, be it the engine compartment, trunk or something else (it would be stupid to miss by a couple of centimeters). At the same time, we determine the polarity by looking at the old battery: what is on the right and what is on the left. Of course, if the car is not European, then the terminals themselves may differ from most usual ones, both in shape and location. After that, we choose a brand: here we definitely advise you to be guided by the list of our winners of recent years and never fall for newcomers or outsiders. Even if their labels are beautiful.
The brand of the battery usually determines its price. The declared current and capacity will be obtained by themselves - based on the dimensions. We charge the battery, connect it instead of the old one - and the key is ready to go!
IN PLACES
28th place “Kursk Accumulator” 6ST-60N
Russia,
LLC "SOURCE TOKA Kursky"
Approximate price, rub. 2800
Declared capacity, A∙h 60
Declared current, A 420
Weight with electrolyte, kg 13,67
When the mass of the battery is more than three kilos less than promised, you shouldn’t expect anything good from it. The result is last place, and without attempts at a decent fight.
27th place avtoSil 6CT-60N
LLC "Nest"
Kaliningrad region, Nesterov
Approximate price, rub. 3100
Declared capacity, A∙h 60
Declared current, A 480
Weight with electrolyte, kg 14,07
The inscription “Tested at -58 °C” is certainly impressive, but even at a modest -29 °C the battery was at the bottom of the table. The reserve capacity is the worst, all other ratings are between 1 and 2. And the price is not the lowest.
26th place START.BAT Professional Starter Battery 6CT-62N
Russia,
LLC "SOURCE TOKA Kursky"
Approximate price, rub. 2300
Declared capacity, A∙h 62
Declared current, A 450
Weight with electrolyte, kg 14,42
The lack of 2.5 kg of mass had a particularly strong effect in the cold: the battery died after 18 s. The declared current is quite modest. In general, everything is bad. What attracts you is the price.
25th place “Podolsk battery” 6ST-62N
Kursk,
OOO"CURRENT CURRENT SOURCE Kursk"
Approximate price, rub. 2700
Declared capacity, A∙h/min 62 / 105
Declared current, A 520
Weight with electrolyte, kg 14,55
This battery seems to have saved on lead plates. The Kursk-Podolsk product did not shine with high performance anyway, and at -29 ° C it capitulated after 19 seconds. And this is with a single current, which is more modest than stated. All in all, a failure.
24th place UNIFORCE BLACK 6CT-62A3
Approximate price, rub. 2200
Declared capacity, A∙h 62
Declared current, A 540
Weight with electrolyte, kg 13,53
“Weight loss” record: actual weight is 3.5 kg less than declared! It’s strange that with such a shortage of lead the battery works at all. And it’s better not to think about high performance.
23rd place BARS Silver 6ST-AP3
Kazakhstan,
Kainar-AKB LLP
Approximate price, rub. 2000
Declared capacity, A∙h 60
Declared current, A 500
Weight with electrolyte, kg 14,66
The lack of mass when weighing is immediately alarming. That’s right: all indicators are among the lowest, especially at -29 °C. But the price turned out to be the most attractive.
22nd place VM 6ST-60AP3(VL)
Kazakhstan,
Kainar-AKB LLP
Approximate price, rub. 2800
Declared capacity, A∙h 60
Declared current, A 500
Weight with electrolyte, kg 14,69
Weight is one kilogram less than stated. All energy characteristics are rather weak: probably they did not add enough lead. The product did not cause delight.
21st place ABSOLUT Art of Power 6CT-62VL
Russia
Approximate price, rub. 3100
Declared capacity, A∙h 62
Declared current, A 540
Weight with electrolyte, kg 14,5
When weighing, we missed one and a half kilograms. We won’t guess what exactly the manufacturer missed, but all the results turned out to be very weak. With such conditions, there is no reason to vote for what is domestic.
20th place ACDelco M62-H3
Korea
Approximate price, rub. 4200
Declared capacity, A∙h/min 62 / 100
Declared current, A 510
Weight with electrolyte, kg 14,38
The most expensive battery in the test disappointed us. It’s cold in Russia in winter, and you have to work in the cold, and not give up after 21 seconds, that is, at the very first stage of measurements. The rest of the results were also not impressive.
19th place Energizer PLUS EP60-L2X
Johnson Controls
Approximate price, rub. 3600
Declared capacity, A∙h 60
Declared current, A 540
Weight with electrolyte, kg 14,31
The expensive battery did not want to catch up even to the average, frankly refusing to work in the cold. Out of the required 30 s of discharge with a single current, she lasted only 24 s and did not reach the second stage of testing.
18th place SZNAJDER PLUS Calcium
Poland,
ZAP SZNAJDER BATTERIES
Approximate price, rub. 3600
Declared capacity, A∙h 60
Declared current, A 520
Weight with electrolyte, kg 13,9
A rare brand on the market, it failed to demonstrate anything unusual. The results are closer to weak, and at such a price they are generally puzzling.
16th–17th place ZUBR 6ST-62A3
Belorussia, SP LLC
"Polesskaya batteries"
Approximate price, rub. 3200
Declared capacity, A∙h 62
Declared current, A 540
Weight with electrolyte, kg 14,52
Battery weight - 14.52 kg. And the declared weight is 17.1 kg! The savings backfired: the results are weak.
16–17 place Banner POWER BULL
Austria
Approximate price, rub. 3700
Declared capacity, A∙h 62
Declared current A 540
Weight with electrolyte, kg 15,38
The long-term litigation of the Austrian company with plagiarists near Moscow ended, and Banner got rid of the doubles that were pushing it out of our market. But there is nothing to say about the battery itself: everything is very average.
15th place BLACK HORSE
Serbia,
Approximate price, rub. 2600
Declared capacity, A∙h 62
Declared current, A 510
Weight with electrolyte, kg 13,76
Quite a light battery and one of the most inexpensive. Perhaps this is its main advantage. She performed without failures, but did not reach for the stars.
14th place GELIOS
Belarus,
"Polesskaya batteries"
Approximate price, rub. 3000
Declared capacity, A∙h 60
Declared current, A 500
Weight with electrolyte, kg 14,67
Let's note one and a half kilograms of difference between the declared weight and the real one. Not enough plates? Very similar, since the battery produced the declared current with difficulty, showing only the 23rd result. The result is in the middle of the table.
13th place TN TITAN ARCTIC SILVER
Russia,
TUBOR Accumulating Energy
Approximate price, rub. 2600
Declared capacity, A∙h 62
Declared current, A 575
Weight with electrolyte, kg 15,68
The manufacturer provides a table of battery applicability - from Alfa Romeo to Volkswagen. As for the tests, they were successful, but no significant breakthroughs were noted, so we had to finish in the middle.
12th place SUPER PRESIDENT
Korea
Approximate price, rub. 2900
Declared capacity, A∙h/min 60 / 110
Declared current, A 560
Weight with electrolyte, kg 14,71
The big name isn't backed up by equally impressive numbers. The battery passed the tests, but it is difficult to note obvious advantages.
11th place Vortex 6CT-62A3(0)
Ukraine,
Westa Corporation
Approximate price, rub. 2800
Declared capacity, A∙h/min 62 / 105
Declared current, A 570
Weight with electrolyte, kg 15,83
The usual results from the middle of the table: there’s nothing special to praise or criticize. But why did the battery fall short of the stated weight?
10th place FORSE 65 6CT-65A(0)
Ukraine, Westa Corporation,
Made for Europe
Approximate price, rub. 3400
Declared capacity, A∙h/min 65 / 110
Declared current, A 640
Weight with electrolyte, kg 16,2
Second place in reserve capacity - excellent! But at -29 °C only the 22nd result. However, in the all-around, all indicators were successfully summed up and earned a place in the top ten.
9th place MULTI
Serbia,
Sombor
Approximate price, rub. 3000
Declared capacity, A∙h 63
Declared current, A 540
Weight with electrolyte, kg 14,37
Among the pleasant surprises is the first place in reserve capacity tests. In other measurements everything is also good. But I don’t want to praise it for its external resemblance to the most popular Turkish battery.
8th place TYUMEN BATTERY 6CT-62L
Tyumen
Approximate price, rub. 3000
Declared capacity, A∙h 62
Declared current, A 500
Weight with electrolyte, kg 16,76
The heaviest battery in our test, as always, did not disappoint, confidently displacing two dozen competitors. Fifth place in reserve capacity, confident performance in the cold - in general, everything is fine. It’s a pity that the usual low Tyumen price is a thing of the past.
7th place BOSCH SILVER PLUS S5
Germany
Approximate price, rub. 3800
Declared capacity, A∙h 63
Declared current, A 610
Weight with electrolyte, kg 14,92
Usually Bosch batteries claim modest currents, but here - 610 A! During this test, fourth place was won - very good. Moreover, the battery is quite light. In general, the performance is typical for the brand: the place is quite high, but not a prize.
4–6 place AKTECH class SLI-PRO 6CT-64L3(R)
Russia, Svirsk
Approximate price, rub. 3200
Declared capacity, A∙h 64
Declared current, A 550
Weight with electrolyte, kg 15,66
“Sibiryachka” became the third when testing the reserve capacity and the fifth in the test with the declared current. Very good. One thing is not clear: why during the weighing were kilograms missing from the promised mass? Maybe he wasn’t enough to be in the top three?
4–6 place EXIDE Premium EA640
Poland
Approximate price, rub. 3100
Declared capacity, A∙h 64
Declared current, A 640
Weight with electrolyte, kg 15,3
The battery manufacturers' promises turned out to be slightly higher than its actual capabilities. She delivered the declared currents, becoming only ninth in this test. However, everything worked out well in the all-around: sharing high places with Ukrainian and Siberian competitors.
4th–6th place a-mega Innovative Hybrid 6ST-60-A3
Ukraine
Approximate price, rub. 3200
Declared capacity, A∙h 60
Declared current, A 540
Weight with electrolyte, kg 15,85
This is not the first year that the Ukrainian brand has felt confidently in the group of leaders. In this examination, the battery turned out to be the best after testing for vibration resistance, and in total it scored the same number of points as EXIDE and AKTECH. Note that the declared weight is 700 g more than the actual one...
3rd place topla ENERGY
Approximate price, rub. 4000
Declared capacity, A∙h 66
Declared current, A 570
Weight with electrolyte, kg 15,65
The batteries of this brand have long gained well-deserved popularity, but have not reached the pedestal. And so it happened: excellent energy characteristics were reflected in the test report. The only criticism for the bronze medalist is his price tag: to put it mildly, a little expensive...
2nd place MEDALIST Premium Battery
Delkor Corporation
Approximate price, rub. 3300
Declared capacity, A∙h 62
Declared current, A 600
Weight with electrolyte, kg 15,16
This battery, as always, fought only for gold, but... The reserve capacity failed - only the seventh result. As a result, even the usual victories in tests with declared and unified currents did not help to rise to the top of the podium again. But the highest class of the brand is confirmed: “Medalist” is the vice-champion!
1st place VARTA BLUE dynamic D43
Johnson Controls
Approximate price, rub. 3600
Declared capacity, A∙h 60
Declared current, A 540
Weight with electrolyte, kg 14,51
Despite ranking sixth in reserve capacity, the battery very confidently withstood high current tests, winning at -29 °C, and ultimately took clear first place. These are the results that consumers expect from big names. Our congratulations!
QUESTION ANSWER
- Why do batteries produce the declared current for such a short time when tested? If the capacity is 60 Ah, then arithmetic dictates: a current of 600 A should be delivered for approximately 0.1 hour, or 6 minutes. But the real count is only tens of seconds...
The fact is that at this current the battery capacity is no longer 60 Ah, but much less: approximately 20–25. The inscription “60 Ah” only means that for 20 hours at a temperature of 25 ºC you can discharge your battery with a current of 3 A (60:20), and no more. At the same time, at the end of the discharge, the voltage at the battery terminals should not drop below 10.5 V.
Estimating capacity in ampere hours is very inconvenient. And measuring it in these units is simply illiterate: the product of current and time does not give the capacity, but the amount of electricity, which is otherwise called charge. The unit of quantity of electricity is the coulomb. 1 C = 1 A s. Accordingly, 1 Ah = 3600 C. The term “reserve capacity” is much clearer, showing how many minutes the battery will last in a car whose generator has failed.
- Is it true that if you install a battery with a larger capacity than the standard one, it will be undercharged, and the starter will fail due to excessive current?
Not true. What will prevent the battery from charging fully? Here's an analogy: if you scooped up a glass of water from a bucket or barrel, then to restore the original level of liquid you will need to add the same glass from the tap - both into the bucket and into the barrel. As for the expected breakdown of the starter, its current consumption will not change, even if the battery capacity increases by a factor of a hundred or a thousand. Ohm's law does not depend on ampere hours.
Talk about future breakdowns is only appropriate for extreme sports enthusiasts who are accustomed to getting out of the swamp on the starter. At the same time, the latter, of course, gets very hot, and therefore a low-capacity battery can save it from fatal overheating, dying first... But this is a hypothetical case.
BATTERIES IN FACTORIES DO NOT LEAD LEAD INTO BATTERIES. WHO IS GUILTY?
- Is it possible to assess the condition of the battery by the voltage at the terminals?
It's approximately possible. At room temperature, a fully charged battery, disconnected from loads, should produce at least 12.6–12.7 V.
- What is hidden behind the term “calcium battery”?
The Ca (or even Ca-Ca) icon on batteries is increasingly present today. We are talking about very small (fractions or units of percent) additions of calcium to the alloy from which the plates are made. If it is added to both positive and negative electrodes, then the same Ca-Sa is obtained. All other things being equal, such batteries are more difficult to boil, which is important for maintenance-free batteries. They also have less self-discharge during storage. Therefore, batteries with traditional antimony additives (usually indicated by the presence of plugs) are almost never found on sale today.
FIVE BATTERIES COULD NOT WITHstand THE FROST!
- Why choose a battery with a declared current of, say, 600 A, if the real need is half that?
The declared current is also an indirect indicator of the quality of the battery: the higher it is, the lower its internal resistance. In addition, in severe frost the oil thickens and the current increases.
- What is better - serviced batteries or maintenance-free ones?
Batteries that still have access to banks are leaving. Such products - let's call them serviceable - are best suited for old machines with unstable mains voltage, in whose batteries water can boil away. For a modern car this is unnecessary: a new battery is simply placed under the hood and forgotten about for several years. Note that even in a new car it costs nothing to ruin the battery in a week. Night winter starts, a full range of switched-on power consumers, short runs in traffic jams - under such conditions it does not have time to recharge from the generator and slowly dies.
Team START allows you to run applications in a separate window, with the ability to specify some parameters for their execution.
Format command line:
START ["header"] [command/program] [parameters]
Command line options:
"heading"- window title. Must be in double quotes.
path- working directory.
B- launching the application without creating a new window and disabling processing of the CTRL+C key combination. If an application does not handle CTRL+C on its own, the only way to break it is to use CTRL+Break.
I- The new environment will be the original environment passed to cmd.exe, not the current environment.
MIN- Run a command/program in a minimized window.
MAX- Launch a command/program in a maximized window.
SEPARATE- Run 16-bit Windows programs in a separate memory area.
SHARED- Running a 16-bit Windows program in a shared memory area.
LOW- Launch the application with IDLE priority (lowest priority).
NORMAL- Launch the application with NORMAL priority.
HIGH- Launch the application with priority HIGH.
REALTIME- Launch the application with priority REALTIME (highest priority).
WAIT- Launching an application and waiting for it to complete.
ABOVENORMAL- Launching an application with priority class ABOVENORMAL (higher than standard)
BELOWNORMAL- Launching an application with a BELOWNORMAL priority class (lower than standard)
team/program- If this internal team cmd.exe or batch file, the command processor (cmd.exe) is launched with the /K switch. This means that the window will not be closed after the command completes. If it is not a cmd.exe internal command or a batch file, then it is a program that will be launched in a graphics or text window.
options- Parameters passed to the command/program.
To call non-executable files through the file type mapping mechanism, simply enter the file name on the command line. For example, the command
START MYFILE.TXT
Will trigger text editor NOTEPAD with opening the MYFILE.TXT file. Learn about creating similar mappings from batch files See the ASSOC and FTYPE command descriptions.
When running a 32-bit application with graphical interface The user command handler CMD.EXE does not wait for the application to exit before returning to the command prompt. This new behavior does NOT apply to running applications from batch files.
When executing a command line whose first element is the text string "CMD" without extension file name or specifying a path, it is replaced by the value of the COMSPEC variable. This prevents launch CMD.EXE from the current active folder, if such a program exists there.
If the first command line item does not contain a filename extension, the command processor CMD.EXE uses the value environment variable PATHEXT to define executable file name extensions and search order the desired file. By default, the PATHEXT variable is set to:
COM;.EXE;.BAT;.CMD
Note that this syntax is similar to the syntax for the PATH variable, i.e. individual elements separated by semicolons.
If no extension is matched when searching for an executable file, a match is checked specified name folders. If the folder name matches the one specified, then the START command runs EXPLORER for that path. If this action is performed from the command line, then it is equivalent to executing the CD /D command for specified path. So, for example, the command
start C:\windows
Opens the C:\windows folder in an Explorer window.
Examples of using:
start /?- issue a certificate about the use of the command.
start- when launched without parameters, a new CMD command interpreter window will open.
start "My new CMD window"- as in the previous case, CMD will be launched in a new window, but text will be displayed as the window title My new CMD window
start devmgmt.msc- the extension will be launched .msc Windows Device Manager.
start http://google.com- the Internet browser will launch and the Google search engine page will open.
start mailto: [email protected] - launch will be completed mail client in preparation mode email for address [email protected] .
start /min notepad.exe- Notepad will be launched in a minimized window.
start "Backup Files" /min /belownormal mybackup.bat- launch batch file in a minimized window with reduced priority.
start /abovenormal /MAX winword.exe- launch the editor Microsoft Word in a new window, maximized to full screen and with higher priority.
start "" /high /MAX "C:\Program Files\Good game\MyGame"- launching the program MyGame with high priority.
Priority management is convenient to use to ensure comfortable user experience with interactive applications while performing lengthy calculation tasks. So, for example, equal priorities of the MS Word editor and a calculation task that consumes a significant share of resources central processor, there may be a freezing effect when working with text document. Reducing the priority of the calculation task will create normal conditions for the user’s work against the background of her work.
Please note that the window title can be omitted, but the peculiarity of processing input parameters by the command start may cause unexpected results when attempting to run a program whose name or path contains space(s). For example, if you try to run the following command:
start "C:\Program Files\FAR\FAR.EXE"
Due to the presence of a space in the path to the executable file, the line to run FAR.EXE must be enclosed in double quotes, however the format of the input parameters for start assumes the presence of a window title, also enclosed in double quotes, as a result of which “C:\Program Files\FAR\FAR.EXE” is interpreted not as an executable program, but as a window title - the interpreter will be launched CMD with the window title "C:\Program Files\FAR\FAR.EXE" . To prevent this from happening, you need to use any header, even empty:
start "" "C:\Program Files\FAR\FAR.EXE"
When running batch files using the command start, the command interpreter window (cmd.exe) is launched with the parameter /K, i.e., after executing the commands in the batch file, cmd.exe does not terminate. For example, there is a batch file test.bat the following content:
ECHO TEST
When running it with the command start test.bat will be fulfilled echo and the shell window will remain open, waiting for user input. This fact must be taken into account when using the command start in scenarios that are executed automatically without human operator intervention. To close a window CMD After executing the batch file, just add the command to the end of it EXIT.
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