Installation Guide
Tools Needed:
- Adjustable wrench
- Wire cutters/strippers
- Screwdrivers (flat and Phillips)
- Multimeter
- Safety gloves and goggles
Step-by-Step Installation
- Choose Installation Location: Select a dry, well-ventilated area away from flammable materials and moisture.
- Inspect Battery: Check battery for cracks, leaks, or damage before connecting charger.
- Connect Battery Cables: Connect RED clamp to POSITIVE (+) battery terminal, BLACK clamp to NEGATIVE (-) terminal.
- Power Connection: Plug charger into a properly grounded 120V, 60Hz AC outlet. Do not use extension cords.
- Set Charging Rate: Select appropriate charging rate based on battery size and condition (2A, 10A, or 50A Engine Start).
- Monitor Charging: Observe charging process and check battery temperature periodically.
- Disconnect Properly: Unplug charger from outlet first, then remove clamps from battery terminals.
Specifications
| Model Series | SC1325 / SC1355 |
| Type | Manual Battery Charger |
| Color | Red / Black |
| Voltage | 12V DC |
| Charging Rates | 2A, 10A, 50A Engine Start |
| Control Type | Manual Rate Selection |
| Battery Compatibility | Standard, AGM, Gel, Deep Cycle |
| Input Voltage | 120V AC, 60Hz |
| Power Requirements | 120V, 60Hz, 5A |
| Dimensions (HxWxD) | 30 x 20 x 15 cm |
| Weight | 4.5 kg |
| Cable Length | 1.5 meters |
Warranty Information
- Full Warranty: 1 year parts and labor
- Transformer Warranty: 5 years on heavy-duty transformer
- Additional Coverage: Optional extended warranty available
For warranty service, contact Schumacher Customer Service at 1-800-621-5485 or visit SchumacherElectric.com
Key Features
Multi-Rate Charging
Three charging rates (2A, 10A, 50A Engine Start) allow optimal charging for different battery sizes and conditions, from maintenance charging to jump starting.
Battery Compatibility
Charges all types of 12V lead-acid batteries including standard, AGM, gel, and deep-cycle batteries for versatile use with various vehicles and equipment.
Heavy-Duty Transformer
Industrial-grade transformer provides reliable power delivery and extended service life, designed for frequent use in automotive and marine applications.
Reverse Polarity Protection
Built-in protection prevents damage if battery clamps are accidentally connected to wrong terminals, ensuring safe operation.
50A Engine Start
High-current setting provides instant power to start vehicles with dead batteries, functioning as both a charger and emergency jump starter.
Durable Construction
Rugged steel case with protective rubber feet and heat-resistant components designed for workshop and field use.
Charging Rates Explained
2A Trickle Charge
Slow charging for battery maintenance, ideal for motorcycles, lawn equipment, and seasonal storage
10A Standard Charge
Regular charging rate for car, truck, and marine batteries, provides complete charge in 4-12 hours
50A Engine Start
High-power boost for starting vehicles immediately, not for continuous charging
Deep Cycle Support
Proper charging algorithm for marine and RV deep-cycle batteries to extend battery life
AGM/Gel Mode
Special charging profile for sealed batteries to prevent overcharging and damage
Maintenance Mode
Automatic float charging maintains battery at optimal level during long-term storage
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger won't turn on | Power issue, blown fuse, faulty outlet | Check power supply, replace fuse if needed, try different outlet |
| No charging current | Poor connections, dead battery, wrong setting | Clean battery terminals, ensure proper connections, select correct rate |
| Charger gets very hot | Overuse, high ambient temperature, blocked vents | Allow to cool, ensure proper ventilation, don't exceed duty cycle |
| Battery not holding charge | Old battery, sulfation, internal short | Test battery condition, may need replacement |
| Spark when connecting | Charger turned on, wrong connection order | Always connect clamps with charger off, follow proper sequence |
| Engine Start not working | Severely discharged battery, poor connections | Check all connections, battery may be too dead for jump start |
Indicator Lights & Status
- Power Light (Green): Charger is properly connected to power source
- Charging Light (Red): Battery is receiving charging current
- Complete Light (Green): Battery is fully charged and on maintenance mode
- No Lights: Check power connection and fuse
- Flashing Red Light: Fault detected - check connections and battery condition
- Both Lights Flashing: Reverse polarity detected - immediately disconnect and correct connections
Manual Downloads
Current Model Manuals
SC1325
12V Manual Charger 2/10/50A
SC1355
12V Manual Charger with Engine Start
SC1353
12V Manual Charger 2/10A
SC1315
12V Basic Manual Charger
Popular Previous Models
SC1201A
12V Manual Charger 10A
SC1307
12V Manual Charger 6/2A
SC1002
12V Manual Charger 2A
SC1217A
12V Manual Charger 25A