The Turbo 4 delivers high amperage. Ignoring safety protocols can damage your battery or cause injury.
| Code | Meaning | Solution | | :--- | :--- | :--- | | FUL | Fully Charged | Charging is complete. Disconnect the charger. | | F01 | Internal Short Circuit | The battery has an internal short. Replace the battery. | | F02 | Bad Battery Connection | Check clamps for corrosion or poor contact. Clean terminals. | | F03 | Sulfated Battery | The battery will not accept a charge. Replace the battery. | | F04 | Overheated / Overtime | The charger has shut down to prevent overheating. Wait for the fan to cool the unit. | | F06 | Reverse Polarity | The clamps are connected backward (Red to Black). Correct immediately. | selmarturbo4batterychargerinstructions
A: No unless the manual explicitly states “selectable 6V/12V.” Most Selmar Turbo 4 models are 12V-only. Using on 6V will damage the battery. The Turbo 4 delivers high amperage