Installation Guide
Tools Needed:
- Safety glasses
- Adjustable wrench
- Wire cutters/strippers
- Screwdrivers (flat and Phillips)
- Voltage meter
Step-by-Step Installation
- Choose Installation Location: Select a well-ventilated area away from sparks, flames, and combustible materials on a stable, level surface.
- Safety Preparation: Wear safety glasses and remove all jewelry. Ensure battery area is well ventilated.
- Battery Preparation: Clean battery terminals and remove any corrosion. Check electrolyte levels in non-sealed batteries.
- Voltage Selection: Set the voltage selector to match your battery (6V or 12V). Do not connect before setting correct voltage.
- Connection Order: Connect RED clamp to POSITIVE (+) battery terminal first. Connect BLACK clamp to NEGATIVE (-) battery terminal or vehicle chassis.
- Power Connection: Plug charger into a properly grounded 120V, 60Hz outlet. Do not use an extension cord.
- Charging Settings: Select appropriate charge rate based on battery size and condition (2A, 10A, or 50A engine start).
- Initial Test: Monitor charger for proper operation during first 15 minutes of charging.
Specifications
| Model Series | SC1352 / SC1353 |
| Type | Manual Battery Charger |
| Color | Black / Yellow |
| Voltage Compatibility | 6V and 12V Batteries |
| Charge Rates | 2A, 10A, 50A Engine Start |
| Display Type | Analog Meter with Charge Indicator |
| Input Power | 120V AC, 60Hz |
| Output Power | 6V/12V DC |
| Dimensions (HxWxD) | 12 x 8 x 6 inches |
| Weight | 15 lbs |
| Cable Length | 6 feet |
| Clamp Type | Heavy-duty copper clamps |
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-Voltage Charging
Charges both 6-volt and 12-volt batteries with easy selector switch. Perfect for automotive, marine, motorcycle, and lawn equipment batteries.
Three Charge Rates
2A trickle charge for small batteries and maintenance, 10A fast charge for standard batteries, and 50A engine start for quick vehicle starting.
Heavy-Duty Transformer
Industrial-grade transformer provides reliable performance and long service life. Designed for frequent use in professional and home settings.
Reverse Polarity Protection
Built-in protection prevents damage if clamps are accidentally connected to wrong battery terminals. Warning indicator alerts user to incorrect connection.
Analog Meter Display
Easy-to-read analog meter shows charging status and battery condition. Charge indicator shows when battery is fully charged.
Heavy-Duty Clamps
Copper clamps with strong spring tension ensure solid connection to battery terminals. Insulated handles for safety during connection.
Charging Modes Explained
2A Trickle Charge
Slow, gentle charging for small batteries like motorcycles, ATVs, and maintenance charging
10A Fast Charge
Standard charging rate for automotive batteries and deep cycle marine batteries
50A Engine Start
High-amperage boost to start vehicles with dead batteries quickly and safely
6V Mode
Special setting for older vehicles, golf carts, and equipment with 6-volt electrical systems
12V Mode
Standard setting for modern vehicles, boats, and most equipment with 12-volt systems
Maintenance Mode
Automatic float charging to maintain battery charge during storage periods
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger won't turn on | Power issue, blown fuse, tripped circuit breaker | Check power outlet, replace fuse if equipped, reset circuit breaker |
| No charge indicated on meter | Poor connections, dead battery, wrong voltage setting | Clean and tighten connections, check battery condition, verify voltage setting |
| Charger gets very hot | Overheating, ventilation blocked, excessive charging time | Ensure proper ventilation, check for obstructions, monitor charging time |
| Reverse polarity light on | Clamps connected backwards | Disconnect immediately and reconnect with correct polarity |
| Battery won't hold charge | Old battery, sulfated plates, internal short | Test battery condition, may need replacement if old or damaged |
| Meter shows charge but battery dead | Bad connections, faulty battery, charger issue | Check all connections, test battery with load tester, consult manual |
Indicator Lights & Codes
- Green Power Light: Charger is properly connected to power
- Red Charge Light: Battery is actively charging
- Yellow Reverse Polarity Light: Clamps connected incorrectly - DISCONNECT IMMEDIATELY
- Meter in Red Zone: High charge rate - normal during initial charging
- Meter in Green Zone: Battery approaching full charge
- Meter at Zero: No charge flow - check connections and settings
Manual Downloads
Current Model Manuals
SC1352
6/12V 2/10/50A Manual Charger
SC1353
6/12V 2/10/50A with Wheel Kit
SC1307
6/12V 2/10/40A Manual Charger
SC1325
6/12V 2/10/25A Compact Charger
Popular Previous Models
SC1000A
6/12V 2/10/40A Classic Charger
SC1200A
6/12V 2/10/75A Heavy Duty
SC600A
6/12V 2/6/40A Compact Charger
SC800A
6/12V 2/10/50A Professional