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Jeffrey SalasJul 25, 2025
Why does the green CHARGED light turn on quickly on my Schumacher SpeedCharge 1200A?
- JJennifer Ross PhDJul 26, 2025
If the green CHARGED light on your Schumacher Battery Charger turns on shortly after connecting to the battery, it could mean the battery is already fully or recently charged. This results in a high battery voltage that appears fully charged. To resolve this, if the battery is in a vehicle, turn on the headlights for a few minutes to lower the battery voltage, then try charging again. You can also try selecting a lower CHARGE RATE.
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