Battery charger - device and usage rules

A battery charger isA special device with which you can check the serviceability of the car battery. The most primitive devices of this type consist of a voltmeter and a load resistance. Slightly more sophisticated devices have in their design also an ammeter. In addition, the load fork for the battery can measure not only the battery, but the entire electrical circuit of the vehicle.

Device

Load fork measuring the voltage levelin the battery, consists of a body that is located on the handle. It includes a voltmeter and several resistances, which are called load coils. To the "plus" of the voltmeter is connected a thick wire, on the back side there is a clamp, which serves to connect the device to the battery terminals of the car. "Minus" is connected to a metal pin, which is located on the back of the case. There are also 2 fixing nuts here. They are designed to connect load coils with a current strength of 100 amperes each.

It should be noted that the load plug forbattery can be suitable not only for standard 12-volt batteries. Most modern devices perfectly handle low-capacity devices (here, as a rule, only one spiral is used) and increased (both spirals are used).

How to use it?

Checking the battery with a load plugoccurs in 2 stages. First, the device must measure voltage without connecting the load resistors. The clamp is connected to both battery terminals. Specialists recommend measuring after the battery is no longer supplied with a memory for at least 6-7 hours. If the battery is not charged, it is necessary to wait for the same amount of time before the measurements after the car has stopped working (that is, you can not wait for it to be muffled).

Further the load fork for the accumulatoris connected to the "+" terminal on the battery terminal and by means of a minus charging pin, the device touches the "-" terminal. Now the arrow displays the readings on the scale. Everything, the first stage is completed. If the device shows a charge of 100%, you can safely proceed to the next stage. To do this, you need to do all the same work as the first time, and in addition, you need to connect the necessary load to the device. And one more nuance - the readings from the plug are removed only after the device has held in this state for not less than 5 seconds. At the time of measurement, the probe can become very hot, so immediately after carrying out the work, do not touch it with your hands. In the second stage, the voltmeter needle should show a value of more than 9.0 V. If so, your battery is in good working order.

How much does the load fork for the battery cost?

The price for this device varies from 2 to 4 thousand rubles, depending on the type and manufacturer.

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