Selmarturbo4batterychargerinstructions | Link

The Turbo 4 is designed for 12-volt negative-ground systems (the standard for almost all modern cars).

If your specific charger looks different or has a different brand name (like "Stanley" or "Black+Decker"), please selmarturbo4batterychargerinstructions link

Contact the seller or a battery specialty shop. The Turbo 4 is rugged; many repair shops keep a laminated copy of the instructions on the wall. The Turbo 4 is designed for 12-volt negative-ground

: If possible, remove the battery from the vehicle to prevent potential spillage from damaging the alternator or engine bay. If charging in the car, ensure all vehicle accessories (lights, radio) are turned off. : If possible, remove the battery from the

Ensure the charger is used only for 12V lead-acid batteries (Wet, Maintenance Free, AGM, or Gel).

: Despite its age, it includes essential safety mechanisms such as protection against short circuits , reverse polarity , and thermal overload .