How to choose start-up devices for a car battery?

Probably, each of those who own a car, at least once was late for an important meeting or for work, and the car refused to start. This is a signal that the battery of the iron "horse" died in an unequal battle. But you have to go.

Start-charging devices will help here. This is the most optimal, reliable and at the same time quite civilized way.

What it is

This equipment to ensure that in the case of weak or dead batteries it was possible to start the engine. Also, these devices can charge rechargeable batteries of various capacities, the nominal voltage of which is either 12 V or 24 V.

Today, there are three types of starting and charging devices. These are household, professional systems and universal or combined. Most drivers use household appliances. They are inexpensive, and the simplest version can even be made by yourself, if you have a little knowledge of electrical engineering and know the simplest laws of physics.

Household charger for car battery

The simplest model can consist of simple components. This is often a transformer, a diode bridge, voltage regulators. However, despite the apparent simplicity of the design, these devices differ in some drawbacks at the circuit level.

One of the most important and serious shortcoming is the lack of protection from the "fool". So, these devices do not provide fuses that would protect users from possible errors. For example, you can confuse the battery poles or short the terminals. In addition, household start-up chargers can not charge the battery in the optimal mode for it.

Professional Models

This is in most practical systems. Here, the manufacturer has installed protective systems from short circuit, improper connection, accidental operation errors. Also, there are already functions for automatic adjustment of charging current, reverse charging function, voltage stabilization function. Professional start-up charger for a car battery must necessarily be equipped with connectors - crocodiles. They make it possible to connect the device to the battery as easily and conveniently as possible. There are start-charging devices, where the connection is via a wire. Here, such a connector can break down or deteriorate almost at any time.

Therefore, professionals recommend for cars only professional equipment. In addition, that there are explicit advantages in the design, such starting-charging devices are more powerful, and therefore, one device can charge a few batteries.

Universal equipment

Universal or combined devices for cars are modified apparatuses for welding works. They are quite dangerous with regard to electronic auto devices. In order for such a device to be able to charge batteries, the welding apparatus at the output is equipped with a voltage divider. This is the combined equipment.

Such a ROM can be used for welding, and to switch it to the battery mode or to start the motor, the device is equipped with a special toggle switch. The big and fat minus here is that many people forget about this toggle switch. As a result, the wiring in the car burns out. Experts do not recommend using such a start-up device for the car. How to choose the right device, let's try to find out.

How to choose a ROM for a car

Let's try to find out which devices are optimal for use. The task that is put before this equipment is to provide the most optimal charging process at all stages. Therefore, for each stage, the maximum stable voltage must be maintained.

When DC is applied at all stages, the current that the ROM creates is also constant. In this case, the battery will be charged quickly enough, but the battery life will shorten. If the charger is used in the constant voltage mode, the battery will be charged quickly only at the beginning of the process. In the end - there is a slowdown, which is also not too good for the battery.

The best solution for modern tasks

Modern equipment uses the principle of combined systems. That is, at the first stage the device issues a stabilized current, and then gives out the stabilized voltage. This is the optimal solution for most modern car batteries.

Car charger: how to choose

Choosing a charging and starting equipment, you must remember: the possibilities should be with a margin. This will increase the life of the device. It is also desirable to have indicators of the progress of the process.

Car memory can be of two different types. These are charging and starting devices and charging and pre-starting. The first can be used both as an autoloader, and in the starting mode - here they give the maximum current. But the price for this equipment is slightly higher. As for the second type of device, their capabilities can barely be enough to charge the battery. They can not work as starting equipment. However, they can be connected to the battery without disconnecting the battery from the on-board network. This will please the owners of foreign cars.

Brands

Let's consider some popular devices among car enthusiasts. Some of them were participants in the test, which produced one famous automotive publication.

Power Start-Charger

This device is a compact case with a power button and an LED charge indicator. Also, the device is equipped with a LED flashlight, an input for recharging the internal battery, two USB outputs and a connector for "crocodiles." The device is equipped with chargers for internal batteries, power wires with "crocodiles", various attachments.

The cost of this device was 5000 r. Its capacity is 12 000 mAh, the starting current is 200 A, the maximum possible is 400 A.

During the tests of this device it can be seen that the initial voltage at the power outputs is 12.64 V. When the load is connected, it works almost perfectly. As for the starting current, it is 152.5 A. Voltages during frequent and numerous inclusions of the device showed good results. What can I say? With this device it is quite possible to start a motor. Indicators - at a high level. To completely discharge the device, it took 18 starts.

Fubag

If you need to purchase a universal start-up charger, then the devices of this manufacturer can be a good choice. In most cases, the company offers professional models for working with modern batteries and cars. Models are designed for use with 12 V and 24 V batteries. There are also several charging modes depending on the model.

Fubag start-up charger is a professional model that will help not only to charge the battery without harm to it, but also quickly and confidently lead the motor, even if the battery is completely discharged. It's a great choice.

"Autoelectrics"

This company represents a series of devices with a capacity of 9 to 200 mAh. Models are characterized by a smooth charge control. The battery charge current is from 1 to 21A.

Start-charging device "Auto-electric" allows you to charge both in automatic and in manual mode. To select the desired mode of operation, there is a special switch. To monitor the process, an LED and a digital indicator are provided.

In addition, the device perfectly starts the engine even at extremely low air temperatures. Starting current of 120 A will cope with any problems. The devices are also equipped with modern means of protection against short-circuit, incorrect connection, overloads. The family of equipment from "Autoelectrics" is an excellent choice for a motorist.