Installation Guide
Tools Needed:
- Safety glasses
- Adjustable wrench
- Wire brush
- Voltmeter
- Clean cloth
Step-by-Step Installation
- Choose Safe Location: Select a well-ventilated area away from sparks, flames, and combustible materials.
- Prepare Battery: Clean battery terminals with wire brush to ensure good connection.
- Check Battery Voltage: Use voltmeter to confirm battery is 6V or 12V system.
- Connect Charger: Connect RED clamp to POSITIVE (+) terminal first, then BLACK clamp to NEGATIVE (-) terminal.
- Power Connection: Plug charger into grounded 120V AC outlet. Do not use extension cords.
- Select Voltage: Choose appropriate voltage setting (6V or 12V) based on battery type.
- Monitor Charging: Observe charging process and disconnect when battery is fully charged.
Specifications
| Model Series | SC-1200A / SC-600A Series |
| Type | Manual Battery Charger |
| Color | Red / Black |
| Charging Voltage | 6V / 12V Selectable |
| Charging Rate | 2A / 10A / 50A Start |
| Control Type | Manual Controls with Analog Meter |
| Battery Types | Standard, AGM, Gel Cell, Deep Cycle |
| Input Power | 120V AC, 60Hz, 8A |
| Dimensions (HxWxD) | 30 x 20 x 15 cm |
| Weight | 4.5 kg |
| Clamp Cable Length | 1.5 meters |
| Reverse Polarity Protection | Yes |
Warranty Information
- Full Warranty: 1 year parts and labor
- Transformer Warranty: 3 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
Dual Voltage Selection
Switch between 6V and 12V charging to accommodate various battery types including automotive, motorcycle, lawn tractor, and marine batteries.
Multi-Rate Charging
Three charging rates: 2A for trickle charging/maintenance, 10A for standard charging, and 50A for engine start assistance.
Heavy-Duty Transformer
Industrial-grade transformer provides reliable performance and long service life, with overload and thermal protection.
Analog Charging Meter
Easy-to-read analog meter displays charging status and battery condition, allowing precise monitoring of charging progress.
Reverse Polarity Protection
Built-in protection prevents damage if clamps are accidentally connected to wrong battery terminals.
Spark-Resistant Clamps
Heavy-duty copper clamps with spark-resistant design for safe connection to battery terminals.
Charging Modes Explained
2A Trickle Charge
Slow charging for battery maintenance, ideal for seasonal vehicles and long-term storage
10A Standard Charge
Normal charging rate for most automotive and marine batteries, provides complete charge in 4-12 hours
50A Engine Start
High-amperage boost to help start vehicles with weak or discharged batteries
6V Mode
Specifically designed for 6-volt systems commonly found in classic cars, motorcycles, and golf carts
12V Mode
Standard charging for modern 12-volt automotive, marine, and power sports batteries
Battery Reconditioning
Helps recover slightly sulfated batteries through controlled charging cycles
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger won't turn on | No power, blown fuse, faulty outlet | Check power supply, test outlet, check fuse |
| No charging current | Poor connections, dead battery, wrong setting | Clean terminals, check battery voltage, verify voltage setting |
| Meter shows no movement | Battery fully charged, meter fault, incorrect connection | Test battery voltage, check connections, verify polarity |
| Charger overheats | Ventilation blocked, excessive load, ambient temperature | Improve ventilation, reduce charging rate, move to cooler area |
| Battery not holding charge | Old battery, sulfation, internal short | Test battery condition, try reconditioning mode, replace if necessary |
| Spark when connecting | Load on battery, wrong connection sequence | Turn off vehicle accessories, connect positive first then negative |
Indicator Meanings
- Meter at Zero: No connection or dead battery - Check connections and battery voltage
- Meter High Then Drops: Normal charging process - Battery accepting charge
- Meter Stays High: Battery may be sulfated - Try reconditioning mode
- Meter Fluctuates: Poor connection - Clean and tighten clamps
- Charger Humming: Normal transformer operation - No action needed
- Bubbling Sounds: Battery gassing - Reduce charging rate or check water level
Manual Downloads
Current Model Manuals
SC-1200A
12V/6V Manual Charger
SC-600A
6V/12V Manual Charger
SC-1200A-CA
Canadian Version
SC-1200A-PRO
Professional Series
Popular Previous Models
SC-1000A
10A Manual Charger
SC-800A
8A Manual Charger
SC-600
6V/12V Basic Charger
SC-500
5A Manual Charger