Selmarturbo4batterychargerinstructions Direct

clip to a solid metal part of the vehicle chassis away from the battery to act as a ground (this minimizes spark risk). Plug the charger into the mains and switch it on. Monitoring: Because this is an older-style manual charger, it will not stop automatically

| Problem | Likely Cause | Solution | | :--- | :--- | :--- | | | No AC power or internal fuse blown | Check outlet with another device. Replace fuse (see manual for rating). | | Red light flashing on one bank | Battery too low (<3V) or shorted cell | Test battery with multimeter. If voltage <3V, battery is likely dead. | | Charger stays on red (never goes green) | Battery won’t hold charge; sulfated or aged | Try desulfation cycle (if feature exists). Replace battery. | | Green light on but battery not full | Loose or corroded connections | Clean terminals and retighten clamps. | | Unit hums or gets hot | Normal operation | Ensure ventilation. If extremely hot (uncomfortable to touch), unplug and contact support. | selmarturbo4batterychargerinstructions