Not one of these, but I have an Energizer, with the same output of 12000mAh.
They claim it with jump engines up to 5 litre petrol and 4 litre diesel.
I have jump started a totally dead 2 litre diesel with it.
I was expecting the device to be flat after that, but it didn't even touch it and was still reading 100%.
I recon it could have gone on and jumped a few more engines if needed.
So it would be okay for a 1.8 petrol.
That is a great price from Lidl for a jump starter.
My Energizer was about £130!
But, at least I got a carry case with it.
