OEM charger
The biggest risk to chargers is "owners lazy ass"
Most buy shiny pig tails, set up port, keep in box......then the one time they come back from long track day, hot date or dont feel like opening hood.....boom, they dont and forget for 1day-6mo.
Then its too late.
OEM you leave plugged in wall 24/7/365/6yrs, 25 ft cord sits on edge of gargae floor, you pop in cigarette lighter DONE.