Charging a car battery - in theory - possible to do this with a transformer ?

Hi guys,

My car battery is dead. My real battery charger which has 2 charging modes, 2amp and 15 amp, seems to also be dead.

Is it possible in theory to charge this car battery using a transformer that is rated at say 2 amps of out put, 12 volts DC ?

I never thought of it before, but charging a car battery, or AA batteries in a tiny charger that you use in your camera, is nothing more than DC voltage flowing into
those batteries ... is that correct ?

I have one of these stupid new electronic car battery chargers that won't charge unless it detects some juice inside of the battery... if there is none, nothing comes out in terms
of voltage out of the battery charger.

What happened to the good old days when we had battery chargers that just put out voltage, without needing to connected to anything. I DID have one of these old old chargers,
and stupid me, tossed it out last year. Argh. It was old, but it still worked. I could just plug it into the wall, and test the 2 alligator clip things coming off of it, and it was showing voltage... but these new chargers... nothing. :-(

Well if anyone wishes to answer my question above, I'd be very happy !

thanks guys.

"Is it possible in theory to charge this car battery using a transformer that is rated at say 2 amps of out put, 12 volts DC ?". If you mean a power supply supplying 12V DC then yes. A transformer is a device that alters AC voltages. A fully charged 12V lead acid car battery should be greater the 13.8V, most likely, 14.2V
Frank

Hi Frank,

thanks for the reply, and yes, that's exactly what I mean.

By the way, I tried charging a very dead / brand new battery ( car battery ) today,
which I killed trying to start my car with the other day.

It's inside right now on my kitchen table, and I tried charging it with a tiny charger that
is meant to charge 12 volt batteries - but tiny ones like you would find in a lawn tractor.

it's a trickle charger rated at 1 amp. ( 12 volts output ) It overheated, and very quickly,
so I decided to not use it anymore.

I guess even though it's rated at an amp, because the car battery is SO dead, it just keep trying to
**** energy from the tiny trickle charger. This trickle charge looks like the typical power brick you would
see for a laptop, or more so for a telephone, it's tiny and not meant for that kind of job I'm trying to do.