How to choose a battery charger

A battery, by its physical and chemical nature, can work regularly for an infinite amount of time-there is simply nothing to break. In reality, everything happens completely differently, and every motorist, if he didn’t find himself in such a situation, then he was definitely watching from the side a couple of cars that “light” or try to start the engine “from the pusher”. Why does this happen? How to avoid such situations?

The answer to this question is simple: you need to look into the online store of auto goods and choose, based on the parameters, charging. Perhaps such a banal answer may even seem annoying, but only a few will take advantage of it, because the key concept here is: “based on parameters”. Quite a few people are well aware of what they are talking about.

We will try to explain some features so that you can choose the right charger for your battery.

A few words about batteries

Batteries are needed for consumers to receive a constant voltage (it can be 3, 6, 12, or even 24 volts), so you need to charge them with the same corresponding constant voltage. The accumulation of energy in the battery is based on a single principle, which bears the name “reversible electrochemical reaction”, although the elements that participate in it can be completely different: lithium-ion, lead-acid, gel, antimony, calcium, AGM, nickel cadmium.

This means that before you make a choice of charger for the battery, you need find out his type. In the characteristics of the memory, you can see whether it is suitable for charging such batteries.

Battery capacity shows how much electricity it can accumulate and hold in its structure. For example, a battery with a capacity of 60 A/h provides a 5-amp device without recharging for as much as 12 hours, and if you connect a device that pulls 120 A to it, then the reserve will last only half an hour.

The charging process itself is also characterized, which is carried out with the help of a current equal to 10% of the capacity (in this case 6 A) and will continue until its original parameters are restored (in this case-10 hours). Given this, the correct selection of the battery charger must necessarily take into account the capabilities of the charger based on the charging current and capacity of the battery that is connected.

The principle of operation of the charger, as well as their types

In fact, battery chargers are step-down rectifiers that regulate output stabilization according to one of several parameters (voltage U or current I). In other words, 220 V is reduced to a predetermined value with the help of a step-down transformer, then with the help of a diode bridge the low-voltage variable is changed to a constant, the electronics smooths the pulsations and makes the output signal stable. At 130.com.ua you can buy a battery charger in Kharkov, Odessa, Kiev with delivery in Ukraine.

Transformer chargers are reliable, proven devices over the years , the purchase of which is advisable if used in the garage. They are quite large and have a lot of weight due to the massive transformer in their design.

So, if you are offered to buy a powerful transformer charging somewhere at 200 A/h and weighing only 2 kilograms, you should consider the veracity of the stated parameters. There is one more thing: devices of this type work with a quiet and uniform hum. If it is buzzing loudly, with a metallic tinge, and the sound increases dramatically with the load-this indicates a poor assembly of the core plates in the transformer and the operation of such an instrument can lead to overheating or even fire.

Pulse chargers (intelligent) work something like this like transformer, but the principle of voltage conversion is different. In order to realize it, a small transformer operates in a pulsed mode under the control of a microprocessor.

This scheme makes it very easy to automate the process of charging the battery itself, to make an organized system for diagnosing and recovering the battery, visualizing its parameters on the display. On pulsed chargers respond very well, despite the fact that they have recently appeared on the market. These charges are lightweight, small size. But they are multifunctional, informative and able to work with high-capacity batteries. Considering this, buying a pulse charger is a reasonable choice, because they now rightfully occupy a leading position in the market.

Main characteristics of the memory

There are only 3 important parameters to look at when buying a charge: voltage, current and capacity. There are still some small rules. It concerns the characteristics of the charger and battery. If you buy a 12-volt charge for a 24-volt battery, this is wasted money. If the device, in which the maximum current is 2 A, try to charge the battery with a capacity of 75 A/h, then charging will take about 2 days.

You can select battery charging modes based on the type of battery, the level of its discharge, the temperature that surrounds and other factors. But the criteria for the qualitative choice of automotive memory are as follows:

1. The voltage at the memory output must be greater than the battery voltage by 20 percent. An important factor is the presence of voltage regulation.

2. The current should be such that it could provide charging for 10-12 hours, and it is desirable that it be with a margin. This is in case you need an accelerated charging mode.

3. The capacity of the battery (which should be restored by the charger) is proportional to the charge current. Best of all, if this indicator is somewhere in 1.5 times more than the capacity of the battery that is currently in use.

Conclusions

Transformer chargers are big, heavy, but reliable (time-tested) and inexpensive.

Pulse chargers are modern, technologically advanced, they work automatically, but their price is several times higher.

What type of charger to choose, you decide. But do not forget that the right approach when choosing-compliance with the parameters of the charger and rechargeable battery.

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Looking for a quality and the best battery chargers? This rating of battery chargers is made on the basis of such parameters as: high demand with positive feedback from our customers, high-quality manufacturing — absence of factory defects and service calls, and official warranty and post warranty support in Ukraine.