Help Qi chargers

[thequeenscheese]

I have a sta card Samsung own Qi charger (the round type) I also have a magnetic Qi charger for the car which I have been unable to use as it requires me to stick a circular ring into the phone case so it sticks to the charger which normally wouldn't be a problem but the ring stops the Samsung charger from working.
Can anyone recommend a Qi charger for the house that will work if I have the metal ring installed into my phone so I can use the car charger also?

TIA