How to Replace the Rate Switch on a Schumacher Battery Charger
Learn how to replace a Schumacher SE-4020 battery charger rate switch with a compatible replacement, including wiring, terminal identification, installation, and testing.
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How to Replace the Rectifier in a Battery Charger
Read nowLearn how to replace a Schumacher SE-4020 rectifier with PLP Battery Supply’s 696640 universal rectifier, including mounting, insulation, wiring, and testing.
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How to Replace the Fan in a Battery Charger
Read nowLearn how to replace the original 12V DC fan in a Schumacher SE-4020 battery charger with PLP’s 7011330 AC fan, including wiring, installation, airflow direction, and testing.
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How to Test Your Car Battery: Carbon Pile vs. Conductance Battery Testers
Read nowLearn how to test your car battery using a carbon pile load tester or conductance tester and understand why the correct CCA rating matters when testing battery health.
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How to Replace a 3-Position Switch on a Benchtop Battery Charger
Read nowLearn how to replace a three-position switch on a tabletop battery charger and understand the difference between PLP Battery Supply switch kits 696364 and 696363.
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Battery Charger Replacement Wheels vs. Cooler Wheels: Why They Aren’t Interchangeable
Read nowLearn why battery charger replacement wheels won't fit rolling coolers and how to measure wheel diameter and axle bore to choose the correct replacement wheel.
