Sooner or later, every motorist is faced with the need to charge the battery. At this moment, many people face the question of whether it is necessary to remove the battery from the car at all for this. Especially when it comes to a modern car model, where there is a fairly large number of all kinds of electrical equipment settings that are guaranteed to fail when the battery is removed.
In fact, everything is quite simple. In modern cars, the battery really can not be removed during charging, as well as the terminals can not be disconnected. Those who have visited car dealerships at least once could have witnessed the following spectacle: the brand new cars in the hall are charged directly with the battery. Ordinary motorists can do the same, although you should remember and impeccably observe several conditions regarding the charging technique.
So, what should you know and remember when charging a battery without removing and disconnecting the terminals from it? Firstly, the charger used must be automatic, and its maximum voltage must not exceed 14.5 volts. Secondly, the hood of the car must be open, and the car engine must be turned off. All this is necessary in order to avoid an explosion of the battery, its overheating, and also a short circuit. Thirdly, it is strongly discouraged to use "complex" battery charging modes, such as "pulse mode".
In addition to all of the above, for any battery charging (including in cases where the battery is removed from machine), it is necessary not to forget that the procedure must be performed only in a well-ventilated the room. This is necessary in order to negate the risk of an explosion of electrolyte vapors, which will inevitably appear during the operation of the charger.
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As for charging devices with manual adjustment, you can use them, however, exclusively at your own peril and risk. This is because any wrong action in this case can ruin not only the battery, but also part of the car's electronics (if the battery has not been removed). A 1-volt jump is unlikely to get things done, but when it comes to your own car, who wants to risk it again?
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If you want to know even more interesting things, then you should definitely read about 5 positive tipsthat will help to significantly extend the life of the battery.
A source: https://novate.ru/blogs/130520/54507/