If I replace my battery on my 2015 NX200t will I lose all my presets? Also, if that is the case, can I attach a trickle charger on the cables while replacing the battery to preserve all my settings?

 

Trickle charger will do it. I bought a OBD 2 memory saver connector that uses a 9v battery for $12. It works great, no need for a 120v outlet or charger. Ca be used on any car with OBD 2. Just plug it into OBD connector under driver's side dash. Don't even have to turn the car on for it to work. I changed my battery in the Costco parking lot and got my deposit back on the spot.

 

I just replaced my battery last month using the OBD connector memory saver, unfortunately somewhere along the line it got disconnected. Car started and ran fine with no issues . I don’t think it’s a big issue no radio codes like Honda and Acura.