There are many questions regarding how much to charge a car’s battery. This article will provide a minimum of information about this - a small guide to action. Immediately say that the battery can fully charge for 10-12 hours. Let's talk a little more about this, because charging is an important point, and the life of your battery will depend on its correctness .
For example, we have a 55 Ah battery. There are rules that oblige you to charge such a device with a current of not more than 5.5 A. The whole charging process takes about 10 hours. It is quite clear that the more current there is, the less time it takes to charge, and vice versa: the less current, the more time will be needed.
If the question of how much to charge the battery is more or less clear, let's talk about recharging. It must be said right away that this is a short charge transfer to a battery that has been discharged. We give an example to convince. The battery does not have enough power to start the engine. You connect it to another donor car. So, when the “donor” engine is running at medium speed (a charge of 30 A is provided), your battery will receive 0.5 A charge every minute. This figure is easy to calculate using the formula 1/60 * 30 = 0.5 A / hour. We consider further. Starting current is approximately 200 A. So charging a battery lasting one minute can torment your starter for about 9 seconds, but the engine will not be able to start at the same time.
How much to charge a car battery so that it can start the engine? Quite enough 10-15 minutes. You can and a little more. However, after that you will have to tackle the nearest streets to fully charge the battery. During such a “walk”, it is advisable to turn off all unnecessary current consumers: radios, headlights, stove and other devices.
As for car services, there are often times when the master connects the battery to the charger for only 15 minutes, and then returns the device to the owner, reporting successful charging. However, we already know how much to charge the battery, so this cannot be enough time to charge the battery.
To sufficiently charge the battery, you need to spend 10-12 hours. The current density should be no more than 0.1 battery capacity. About how much to charge the battery, you will learn by boiling, it is accompanied by the end of charging. According to the hydrometer, the total battery charge in the winter is 1.27-1.28, and in the summer - 1.26.
The battery charging process is not fast. But you have to spend a little time. Otherwise, in the future you will have to buy a new battery due to the failure of the old one. How long it takes to charge a car battery depends on the type of device, as well as on the amount of current. But still, if you want to charge correctly, thereby increasing the life of the device, contact qualified specialists.