Renault Traffic 3 2015 program 2nd key with Lonsdor K518ISE successfully. 10 min job.
Read flash, prepare dealer key and learn key.
Done a lot of these, 30-40. No issues. But always with battery support.
2015 10 min. 2018 onwards up to 40 min.
Smart Pro does these in 5mins. Lost key too. Autel can add key no problem, nice no Lonsdor does them. Tools so powerful now.