Installation Guide
Tools Needed:
- Safety glasses
- Adjustable wrench
- Screwdrivers (flat and Phillips)
- Wire cutters/strippers
- Voltage tester
Step-by-Step Installation
- Safety First: Ensure work area is well-ventilated and free from sparks or flames. Wear safety glasses.
- Battery Preparation: Clean battery terminals and ensure battery is in a stable, level position.
- Connect Charger: Connect RED clamp to POSITIVE (+) battery terminal. Connect BLACK clamp to NEGATIVE (-) battery terminal or vehicle chassis ground.
- Power Connection: Plug charger into a properly grounded 120V, 60Hz AC outlet. Do not use extension cords.
- Select Charge Rate: Choose appropriate charge rate based on battery type and condition (2A for maintenance, 10A for standard charging).
- Monitor Charging: Observe charger indicators during initial charging phase to ensure proper operation.
- Disconnection Procedure: When charging complete, unplug AC cord first, then remove negative clamp, followed by positive clamp.
Specifications
| Model Series | SC-1200A / SC-1002 |
| Type | Dual Rate Battery Charger |
| Color | Red/Black |
| Charge Rates | 2A (Trickle) / 10A (Standard) |
| Input Voltage | 120V AC, 60Hz |
| Output Voltage | 12V DC |
| Battery Compatibility | Standard, AGM, Gel Cell, Deep Cycle |
| Charging Technology | Automatic Voltage Regulation |
| Dimensions (HxWxD) | 8.5 x 6.5 x 4 inches |
| Weight | 4.2 lbs |
| Cable Length | 6 feet |
| Safety Features | Reverse Polarity Protection, Overcharge Protection |
Warranty Information
- Full Warranty: 1 year parts and labor
- Transformer Warranty: 5 years
- 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 Rate Charging
Select between 2A trickle charge for battery maintenance or 10A standard charge for faster charging of discharged batteries.
Automatic Voltage Regulation
Intelligent charging system automatically adjusts voltage to prevent overcharging and extend battery life.
Multi-Battery Compatibility
Charges standard flooded, AGM, Gel Cell, and deep cycle batteries with optimal charging profiles for each type.
Reverse Polarity Protection
Built-in safety feature prevents damage if clamps are accidentally connected to wrong battery terminals.
Maintenance Mode
2A trickle charge setting maintains battery charge during storage without risk of overcharging.
Spark-Free Technology
Advanced circuitry prevents sparking when connecting clamps, enhancing safety during operation.
Charging Modes Explained
2A Trickle Charge
Ideal for maintaining motorcycle, ATV, lawn tractor, and other small vehicle batteries during storage
10A Standard Charge
Perfect for charging car, truck, SUV, and marine batteries that are partially or fully discharged
AGM Mode
Special charging profile for Absorbent Glass Mat batteries commonly used in modern vehicles
Deep Cycle Mode
Optimized charging for marine and RV deep cycle batteries with different discharge characteristics
Maintenance Mode
Automatic float charging maintains optimal battery voltage during long-term storage
Recondition Mode
Helps recover slightly sulfated batteries through controlled charging cycles
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger won't turn on | Power issue, blown fuse, faulty outlet | Check power supply, test outlet, check charger fuse |
| No charging current | Poor connections, dead battery, wrong settings | Clean battery terminals, ensure proper connections, verify settings |
| Charger overheating | Ventilation blocked, excessive load, ambient temperature | Ensure proper ventilation, reduce charge rate, move to cooler area |
| Error indicator lights | Reverse polarity, battery fault, charger issue | Check connections, test battery, consult manual for specific error codes |
| Slow charging | Low input voltage, battery sulfation, wrong charge rate | Check AC voltage, try recondition mode, select higher charge rate |
| Spark when connecting | Battery load present, improper connection sequence | Connect negative clamp to chassis first, ensure charger is unplugged during connection |
Indicator Lights & Error Codes
- Green Solid: Charging complete - Battery fully charged
- Green Flashing: Maintenance mode - Battery being maintained
- Red Solid: Charging in progress - Normal operation
- Red Flashing: Error detected - Check connections and battery
- RP Error: Reverse polarity - Clamps connected incorrectly
- OL Error: Open circuit - Check connections and battery cables
- F Error: Fault detected - Disconnect and restart charger
Manual Downloads
Current Model Manuals
SC-1200A
Dual Rate 2A/10A Charger
SC-1002
Dual Rate Charger/Maintainer
SC-1355
3A/15A Dual Rate Charger
SC-1201
2A/10A/50A Engine Start
Popular Previous Models
SC-600A
6A/2A Manual Charger
SC-1000A
10A Automatic Charger
SE-82-6
2A/6A Dual Rate Charger
SC-800A
8A Automatic Charger