I have a 2013 SL, battery has 28 miles of range left, and the L2 charging does not work. 28 miles isn't enough for how I want to use it. 60 miles of range would be enough.
From what research I have done, a 2015 SL would have a compatible 24 kWh battery and PDM. A 24 kWh battery with 70% SOH...