Bought a second hand car within 2 weeks it was faulty

[Chocolate2020]

I bought a second hand car from a private seller who sells multiple cars all the time as a sort of side business and the seller was very professional.

The car was an older car I think its an 04 plate.
And its had regular services and is low milage and had 2 Owners before me
I did mention, what if somthing was to go wrong when Ive bought the car, he mentioned somthing about getting some sort of cover just incase.

Anyway I got the car and 2 weeks later the battery died while I sat in the car parked up, I thought I must have left the light on.

Got it started after jumpstarting it..
After that it then said electronic fault and hand brake fault (ridiculous cars have electric hand brakes, so i couldn't bump start it as i can't remove the hand brake when battery dies).

Another 2 weeks pass and the car is fine until I go to the shop and then I get back and the car is dead and I know I didn't leave the lights on.
Anyways I get it charged and 4 days later my car is dead again..

1 week later I go an buy a new battery and the car still won't start....
A car mechanic over the phone said the battery in the key might need replacing because the car dash board is lighting up.

My question is I must have rights as the guy I bought if off sells cars for a side business.
If it was someone random I bought the car off I know I wouldnt be covered...

I also made him aware of the issue within 2 weeks of buying it

Did you try changing the battery in the key?

No lemon laws here (England) it's buyer beware.
Unless you can prove the seller knew? Did he mention any electrical issues?

No rights - if you buy from a private seller thems the breaks.

If you buy a 16 year old car (as I have done before), you accept things can go wrong at any second.

I’d get your alternator checked, cos if that’s dodgy it won’t be able to charge up even the newest battery.

Private sales like this are usually "sold as seen" so you have no rights. You are relying on the sellers good will to do anything about it unfortunately.

You cannot sell cars 'on the side' report to trading standards.

Ps I used to work in this field. Trading standards will take a very dim view.

I haven't changed the battery in the key....
Ughhh........
Bloody lemons

With a private seller the warranty expires when they shut the front door. However this person is a trader dodging the law. Get on to trading standards.