Battery won't stay charged/car dead after hitting pot hole

I would check all earth wire on your car , as it sounds if there is a bad earth wire or a broken one ., this would explain your battery going flat and the flat battery would probably cause your problem with the steering as it will probably be an electric steering pump

Sounds like something came lose in the wiring or the altanator got damaged

get it into a garage before something really goes bad then you'll be looking for a new beamer

If you just hear a click, try this:
This procedure usually works:
·Check the battery cable connections:
Make sure the positive cable, makes a good connection at the battery and at the starter. Make sure the negative cable makes a good ground connection at the battery and (preferably) at the engine.

·Check the battery the simple way, like this:
Turn on the headlights, then try to start the car.If the headlights do not dim or go out, then the battery is likely ok.

·Check the starter and solenoid:
If the wiring looks ok, then look at the starter solenoid for a good connection, and proper voltage at the starter(10 volts minimum while cranking).
If the starter spins and no crank, the problem is most likely the Solenoid's bendix gear is stuck.
Have someone hit (not too hard) the starter while you try to start the car. This usually works by dislodging a stuck bendix gear.
·Make a simple test of the alternator:
If you can, somehow get the engine running, measure the voltage at the battery. It should be at least 13.6 volts to properly charge the battery.

I think there is a possiblity that the ABS Braking System
had a role there

Hopefully that was just a normal car issue,although one
that won't be understood, if all continues as in the past

Either its a bad new battery or tour altenator isn't charging it. Jumpstart it.

check ur distributer cap

check the obvious
bad ground wire from the battery, loose battery terminals

check the engine earth the gearbox earth and the battery connections...

scan code it will point you at problem area,usually when batt. light is on indicates problem whith charging cicuit