Many motorists are familiar with the situation when one frosty morning the engine refuses to wake up after a cold night. Then it becomes clear that the battery is discharged. But do not rush to rush to buy a new one. After all, you can restore a "dead" battery. If recharged correctly, it will last for a long time.
Instructions
Step 1
Remember to charge the battery at a specific rate. If, for example, your battery has a capacity of 50 ampere hours, it needs to be charged for 10 hours at 5 amperes. Remember to remove the covers when charging.
If you try to charge the battery faster, it may result in overheating or boiling of the electrolyte. And if the plates warp, the battery will die. If the battery is sealed, charge it even more slowly. On average, no more than 2.5% of the ampere-hour characteristic. However, keeping the battery charged for too long is also not worth it.
There are chargers equipped with a quick charge function. It must be used
only in extreme cases. After all, this procedure reduces the life of the battery.
Step 2
If your battery is dead and you urgently need to start the car, the easiest way is to charge the battery from an external source. Usually motorists help each other out by letting the discharged battery recharge from their car. However, for this you need to have a starter cable. They are very different. But it is better to buy not a "left" one made by a handicraft method, but a factory one. After all, the wrong cable can melt at the first use. Because of this, it will warm up and lose energy. So it’s not far from the fire.
Step 3
If you have a starter cable, first connect the red cable to the (+) terminal on the charged battery. Then you need to connect the other end of the red cable to the (+) terminal on the dead battery. Then connect the black cable to the (-) terminal on the charged battery and the other end to a clean ground point on the engine block or chassis. The main thing is that it is away from the battery, carburetor, fuel hoses. At the time of connection, a small spark may slip through.
Care must be taken to ensure that both cables do not touch moving parts. The vehicle can now be started with a charged battery. It should run for at least one minute. Then try to start the car with a discharged battery. If the engine does not start, wait a few minutes and try again. When everything works out, you can drown the donor car. When you disconnect the starter cable, repeat the entire procedure in reverse order.
