How (on average) many *amps* does an 14.4volts car battery charger dish-out?
Depends on make, should have a tag on it to tell you amp hour rating.
Most battery chargers have a selector depending on the size and quality of the charger. The amp rating used on most are any of or a combination of the following - 2amp 10amp, 40amp, 100amp, 200amp. I have seen chargers that go as low as .5 amp, which is the current of a tricke charger also.
The typical 4 cylinder car requires about 300 amps to start, a V-8 might require 600 amps. If you're thinking about buying one buy one that's sized for your engine. I don't know about average because there's a lot of junk for sale called jump starters.
For jump start an engine of average size atleat 50 ah battery is required During cranking of the engine self starter consumes more than 200 amps In this case this 50 ah battery can crank contineously for 15 munutes If you take any battery charger its out put would be around 55 amps (bigger size charger) In this case this charger can not supply 200 amps hence poor cranking
I recently purchased one from Halfords, it was just under a ?100. I suppose you know that a totally flat battery would make it very difficult to start. When you try, connect up and leave it for about fifteen minutes don't try to start is straight away. My car is a 2000cc diesel I go along with all the other answers but if you have a wife like mine that will not close a door properly, running down my battery, a new battery would not help. I suppose the real answer is buy both, rather like belt and braces
