SL Battery Diagnostic Adapter Cable (48V Internal Battery to Diagnostic Tool) Perform diagnostics on 48V SL internal batteries using the Turbo Diagnostic Tool with this adapter cable. Also compatible with SL Range Extenders. Rosenberger plug connects to the Diagnostic Tool, SL charger tip connects to the SL battery. SL internal battery may need connection to an SL charger to wake up the BMS before diagnostics. Compatible with SL Range Extenders as well.