DANGER: This is a MANUAL charger. It will NOT shut off automatically. Leaving it on a fully charged battery will cause electrolyte boiling, internal grid corrosion, thermal runaway, and potential explosion.
| Issue | What the manual says | User tip | |-------|----------------------|-----------| | Doesn’t start charging | Battery below minimum voltage (often <3V for 6V mode or <7V for 12V) | Jump-start or use a basic charger to bring voltage up first. | | Flashing error light | Reverse polarity, bad connection, or battery sulfated | Check clamps clean/tight. If sulfated, try desulfation mode (if available) or small trickle for 24h. | | Engine start doesn’t work | Battery must have some charge (≥10V) | Don’t use start mode on a totally dead battery – it won’t work and may damage charger. | | Won’t charge AGM | Not all 111568 versions have AGM profile | If manual says “lead-acid only”, use standard mode but monitor heat. |
Cause: The battery is likely aged or sulfated beyond recovery. The 111568 includes desulfation logic, but it cannot resurrect physically damaged plates. motomaster battery charger 111568 manual
Solution:
| Symptom | Likely Cause | Solution | | :--- | :--- | :--- | | Ammeter reads 0A at 10A/2A | No connection / Sulfated battery | Rock clamps; desulfate using 2A for 48h. | | Ammeter pegs >15A at 2A setting | Dead short in battery (internal cell failure) | Stop; replace battery immediately. | | Charger hums but no output | Tripped thermal breaker | Wait 30 min; press reset button (rear/side). | | Needle jumps at 50A Start mode | Normal engine crank current | Do not exceed 5 seconds crank; rest 3 min. | DANGER: This is a MANUAL charger
To keep your charger working for a decade or more, follow these maintenance tips (many found in the manual’s final pages).
Cause: This model has a “safety lockout” if it detects improper connection or a sulfated battery. | Issue | What the manual says |
Solution from manual: