How to charge a car battery?

How to charge a car battery?

Is it possible to use a laptop power supply (DC 15V - 5A) as a charger? The voltage and current parameters seem to be suitable. The question is: Will the power supply produce the necessary 4-5 amperes or will the charge current increase uncontrollably until it burns (charger)?

p.s.

it is understood that in addition no current regulator is used.

it’s easier to find a transformer of the type TVK-70 or TVK-110, the last one just gives out 12v, you can turn on any other one that is connected to the network, the main thing is to measure the secondary windings and put a diode bridge at the output, one guy in the village generally charged with a cell charger, though he kept says two days, but it’s not worth doing this, just such a charger once if it can withstand and it’s good ..

You won’t be able to go straight to the defense, because the battery at the beginning eats under 10A ... you need any 55 or 60W 12v through the lamp

Necessary 5 amperes? Who said that this is necessary, Akum is charged with current, and everywhere they write only the maximum permissible, because with a higher current, Akum can die, and with a smaller one, only increases the charging time

I will not argue (new to this matter), but on the forums they have said many times that the charge current is about 1/10 of the battery capacity. My capacity is 62 Ah, that is, even 6 amperes is obtained.

Yes, but it’s the most permissible and supposedly safe, the lean ones charge with a small current, 1-3 amperes, limit the current to the prose with a light bulb for one reason, 15 volts multiply by one ampere you get 15 watts, where do you get a 15 watt resistor?

5 amp will be 5 times more powerful

Itself collected chargers. We need a transformer for 15-14 volts of 4-2 diodes, the more powerful, the better and a smoothing capacitor, so that the plates do not crumble during charging, but it is possible without a capacitor if the battery is not a pity.

the lamp from the headlamp in series for reinsurance.

I charged with a normal UPS, turned on the car instead of the native one. the same lead, the same 14.2 volts

You’ll burn the block. Connect the load to the circuit. The lamp is in series with the battery, preferably 55-60W of headlights. But the charging current will be too small, you will wait a long time, so it’s better to take 2-4 bulbs, connect them in parallel with each other and then turn on this “triple” in series with the battery. The current will be normal.

Will charge. There will be no problems. Itself charged 18V 5A, but put a lamp in a chain