Modern car batteries are low maintenance items in general and they only require periodic cleanings and checks in order to ensure that they operate reliably. Electrical components may fail occasionally, but many vehicle owners also leave the car accessories switched on for an extended period of time which results with a car battery that has been completely drained of electrical energy. In those cases, car battery chargers can replace the lost charge of the battery. Using those chargers is simple, but some troubles may still be encountered, so read this article in order to find out how to solve the problems of your auto battery charger.
Problems with polarity
Car batteries feature two posts and the cables of the battery are connected to those posts. Each of the posts has specific polarity (negative or positive). In order to replace the charge of the battery properly, you must connect the positive connector of the charger to the positive terminal of the battery, and the negative connector of the battery charger to the negative terminal of the battery. If you connect the car battery charger improperly, you will not only fail to replace the charge of the battery, but you may also cause an explosion. How to connect the car battery charger properly is the most important thing you should know when you are trying to use it. Please don’t try to charge the car battery if you are not sure how to connect the charger.
Overcharging the car battery
There are two main kinds of car battery chargers: manual and automatic. Automatic chargers are easier to be used because they sense when the car battery is charged fully and they automatically stop supplying the electrical energy to the battery. That is a very useful feature because it keeps the battery from the damages of overcharging. If your car battery charger is manual, you must monitor it and disconnect or shut it off when the battery charges fully. Manual car battery chargers don’t have the ability to monitor the charged state of the battery, so if you don’t disconnect them properly – you will overcharge the car battery and permanent damage will be caused by that.
Voltage and no output issues
Some chargers for car batteries can be set to various voltages. The voltage you set the car battery charger to has to match the voltage of the battery. If you fail to select the proper voltage you will risk the occurrence of overcharging or excessively long time needed for proper charging. When you connect a battery charger to a car battery that has been completely discharged, it will show little reading on the voltage meter, or no reading at all. If the voltage doesn’t rise after twenty minutes, it may be a sign that the charger is not supplying any current to the car battery and you will need to check all connections. If the battery charger has been connected properly and the contact with the terminals is good, your car battery might have a dead cell or it may be damaged beyond use. In such case, you should test the car battery in order to determine its condition.