The 6 Best Car charger

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Thirty years ago, when the driver noticed that his car battery had emptied overnight, either the ADAC had to be called or the neighbour helped to bridge the gap. Nowadays, this problem is less explosive as there are easy-to-use car chargers at affordable prices. When prices for devices with a microchip interior fell in 2000, intelligent chargers for car batteries were soon also on the market. These car chargers were equipped with a power supply unit as well as two terminals, allowing anyone to attach them to an empty car battery to recharge them. Connecting the car charger made easyA commercially available charger for a car battery is preferably used to charge accumulators like a car battery. They have an electronic circuit as well as a charge controller that controls and monitors the charging process. In some devices, the charge controller is also mounted on the battery-operated device itself, whereby the power supply is provided by a power supply unit. These car chargers are usually used when an electrical load was still in operation when leaving the car, or when the car battery is already weak. If a battery for the car is weak or has emptied completely, the driver notices that the car does not start up when the car key is turned. In such a case, the car charger can simply be connected. Usually a red and blue cable is connected to the car charger with two terminals for the positive and negative terminals of the battery. A mains cable is often attached to the rear of the charger, and there are also chargers that run on rechargeable batteries. Since in modern cars an on-board computer controls almost all processes, both battery terminals of the car should be unscrewed before using the car charger. Otherwise there is a risk that the charger will overload and damage the on-board computer. Some models of these car chargers even build up superimposed voltages. These are high electrical voltages that cause long-term damage to electronic components. First always disconnect the ground terminal from the negative terminal of the battery. The minus pole on the battery is always marked with a minus sign. The terminal on the positive pole should then be removed to avoid a short circuit. Once the battery is disconnected, the two terminals of the car charger can be connected. Here, too, the negative terminal must be connected to the negative pole. If the poles are reversed, the fuse on the car charger jumps out. The car chargers are now so inexpensive that it is well worth a driver in the winter months to store such a device in the car in case of an emergency. Especially devices with a rechargeable battery are well suited if the car battery fails. They can also be used without help by technically unskilled persons. The handling is so simple that one instruction manual is sufficient for operation. The correct charging of a car batteryThe modern car chargers are equipped with high-quality electronics to automatically regulate the charging current, which is not a matter of course with older models. Most devices inform in different ways about the remaining time until the battery is fully charged. This process usually takes several hours, but this is also due to the charging current. A normal car battery is charged with 48 ampere-hours. Before removing the charger, the mains plug should be removed from the power source. As the next step, the driver removes the terminals from the charger and screws them back on again. The terminal of the positive pole should be screwed on first and then the earth terminal of the negative pole. Because charging a car battery with these devices has become so easy, the car charger is one of the useful car accessories that everyone should have. Anyone who wants to buy such a device should make sure that the charging capacity of the car charger matches the capacity of the car battery. Some car batteries, especially in large vans or station wagons, require far more power than the car battery for a small car like a Smart. In addition, the quality of the car chargers should be taken into account, as not all are really cold-resistant.

Our Top Car charger Pick

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