Installation Guide
Tools Needed:
- Adjustable wrench
- Screwdrivers (flat and Phillips)
- Wire cutters/strippers
- Multimeter
- Safety gloves and goggles
Step-by-Step Installation
- Choose Installation Location: Select a dry, well-ventilated area away from flammable materials and moisture.
- Unpack and Inspect: Remove all packaging materials and inspect the charger for any shipping damage.
- Mounting: Mount the charger on a stable vertical surface using appropriate mounting hardware.
- Electrical Connection: Connect to a properly grounded 120V, 60Hz, AC outlet. Ensure circuit can handle the load.
- Battery Connection: Connect battery cables - RED to positive (+), BLACK to negative (-) terminals.
- Grounding: Ensure proper grounding of both charger and battery system.
- Initial Test: Perform initial charging test with a known good battery to verify proper operation.
Specifications
| Model Series | SCB4 Series |
| Type | Automatic Battery Charger/Maintainer |
| Color | Black/Red |
| Charging Capacity | 4 Amps |
| Input Voltage | 120V AC, 60Hz |
| Output Voltage | 6V/12V Automatic |
| Charging Modes | Bulk, Absorption, Float, Maintenance |
| Battery Types | Standard, AGM, Gel, Deep Cycle |
| Display Type | LED Status Indicators |
| Protection Features | Reverse Polarity, Short Circuit, Overheat |
| Dimensions (HxWxD) | 15 x 10 x 8 cm |
| Weight | 1.2 kg |
| Operating Temperature | 0°C to 40°C |
Warranty Information
- Full Warranty: 3 years parts and labor
- Transformer Warranty: 5 years on power 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
Microprocessor Controlled
Advanced microprocessor automatically adjusts charging rate based on battery condition, ensuring optimal charging without overcharging.
Multi-Stage Charging
Four-stage charging process (Bulk, Absorption, Float, Maintenance) maximizes battery life and performance.
Battery Type Detection
Automatically detects and adjusts charging parameters for Standard, AGM, Gel, and Deep Cycle batteries.
Reverse Polarity Protection
Built-in protection prevents damage if battery cables are accidentally connected incorrectly.
Desulfation Mode
Pulse mode helps break down sulfate crystals on battery plates, potentially reviving weak batteries.
Float/Maintenance Mode
Automatically switches to float mode once battery is fully charged, maintaining optimal charge without overcharging.
Charging Stages Explained
Bulk Stage
Delivers maximum current to quickly bring battery to 80% charge
Absorption Stage
Constant voltage stage that completes the charging process
Float Stage
Maintains full charge without overcharging the battery
Maintenance Mode
Monitors battery and provides charge as needed for storage
Desulfation
Special pulse mode to break down sulfate crystals
Battery Testing
Automatically tests battery condition before charging
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger won't turn on | Power issue, blown fuse, faulty outlet | Check power supply, test outlet, check fuse |
| No charging output | Bad connections, faulty battery, reverse polarity | Check all connections, test battery, verify polarity |
| Charger overheats | Poor ventilation, excessive load, ambient temperature | Improve ventilation, reduce load, move to cooler area |
| LED indicators flashing | Fault detection, bad battery, connection issue | Check manual for flash pattern meaning, verify connections |
| Battery not holding charge | Old battery, sulfation, internal short | Test battery condition, try desulfation mode, replace if needed |
| Slow charging | Weak battery, poor connections, low input voltage | Check connections, verify input voltage, test battery |
LED Indicator Codes
- Solid Red: Charging in progress
- Solid Green: Charge complete / Maintenance mode
- Flashing Red: Fault detected - check connections
- Flashing Green: Desulfation mode active
- Red/Green Alternating: Reverse polarity detected
- No Lights: No power or unit fault
Manual Downloads
Built 4 Series Manuals
SCB4
4 Amp Battery Charger/Maintainer
SCB4A
4 Amp Advanced Charger
SCB4W
4 Amp Wheeled Charger
SCB4P
4 Amp Professional Series
Related Models
SCB2
2 Amp Battery Maintainer
SCB6
6 Amp Battery Charger
SCB10
10 Amp Fast Charger
SCB15
15 Amp Heavy Duty Charger