Schumacher SE-4020 - Manuals

2 1. WARNING: Wear complete eye protection and clothing protection, when working with lead-acid batteries. 2. Make sure someone is within range of your voice or closeenough to come to your aid when you work with or near alead-acid battery. 3. Have plenty of fresh water and soap nearby for use if bat...

3 OPERATING INSTRUCTIONS: CHARGING BATTERY IN VEHICLE When charging battery in the vehicle, take care to determine the battery type and which post is grounded. To reduce risk of a sparknear battery, follow these steps when battery is installed in vehicle. WARNING: A spark near battery may cause batt...

4 H. OUTPUT SELECTOR CONTROLS TIMER: The main function of the timer is to prevent over charging while allowing a battery time to obtain a satisfactory charge. To properly setthe timer you must know the size of the battery in ampere hours orreserve capacity in minutes and the state of charge. Often t...