How to properly charge the battery using another vehicle

How to properly charge the battery using another vehicle

In summer, the problem of starting a car is not great, you can start a car even on a very discharged battery. But in winter, the internal resistance of the battery increases sharply, as do the friction forces in the car components.

The battery requirements are much higher in winter than in summer. Here, 2 wires with crocodiles at the ends and a car with a serviceable battery will often be indispensable to start a car.

Drivers of a car with a charged battery need to be attentive to the process of "lighting up", there are many nuances here.

Most importantly, you can give your battery to help only to start a faulty car that did not start only because of a discharged battery. Otherwise, you can hopelessly "drain" the battery on your car.

Therefore, it is necessary to first carefully inspect the faulty car (whether there is a smell of gasoline, in what condition the ignition system, wiring is), ask the owner about the behavior of the car recently.

If before that the engine tripled (perhaps problems with faulty spark plugs), started with difficulty, stalled unexpectedly, you must first eliminate the cause, and then "light up".

If there is a pungent smell of burnt electrical wiring under the hood, then there can be serious problems when "lighting up". Most likely, we have a car with a short circuit in the wiring, starter or battery. In this case, when starting, you can easily lose your wiring, the battery may even explode (there is a powerful reaction of heating the electrolyte, it boils quickly).

there is a powerful reaction of heating the electrolyte

Не надо давать «прикуривать» автомобилю с более мощным двигателем и при морозе ниже минус 20 градусов.

The same applies to a car with a diesel engine: in order to start, the diesel must develop a solid speed, so in this case you need to have a powerful battery of increased capacity. In this case, you risk "draining" your battery and you should refuse to light up.

Wires for "lighting up" should have a cross-section of at least 16 square mm, with powerful "crocodile" clips soldered at the ends.

with heavy-duty soldered alligator clips at the ends

Connect the battery terminals of two cars with wires in the following sequence:

  • First of all, connect the "plus" of a discharged battery with a "plus" serviceable battery.
  • Then connect with the second wire to the negative terminal of the charged battery.
  • В последнюю очередь «крокодилом» подключаемся к борту неисправного автомобиля, но не минусовой клемме разряженного аккумулятора, а к корпусу авто. Причём подальше от минусовой клеммы, так как в момент пуска автомобиля будет неизбежно искрение на «крокодилах» при большом зарядном токе на разряженном аккумуляторе. Будет выделяться гремучий газ (возможен взрыв).

At first, it is the positive wire that is connected so as not to touch the ground when the negative one is already connected.

After starting a faulty car, the wires are removed strictly in reverse order.

You need to connect the wires very carefully, only by yourself, you don't know what kind of "kettle" you will run into (it can simply short-circuit your battery, confusing the terminals).