Why is the Charging Output on My CTEK Battery Charger & Maintainer Low and Unpredictable?
Low, unpredictable charging output usually means the charger is stuck in a pulse or desulfation stage, or it cannot sense a stable battery voltage. That happens when the battery is deeply discharged, has a bad cell, or has loose, corroded connections. I check my clamps and terminals first, then test the battery with a multimeter. … Read more