Use safety glasses and gloves to protect against battery acid and potential sparks.
Do not plug the charger into a wall outlet until after the clips are connected to the battery. Napa Battery Charger Instructions
For a battery installed in a vehicle, connect the black clip to a heavy metal part of the engine block or frame away from the battery. If the battery is outside the vehicle, connect it directly to the negative (-) terminal. Power On: Plug the charger into a grounded AC outlet. 3. Setting the Charge Use safety glasses and gloves to protect against
