Schumacher SC1361 Owner's Manual

The Schumacher SC1361 is a fully automatic battery charger and maintainer designed for 6V and 12V lead-acid batteries, including standard, AGM, and gel cell types. It features microprocessor-controlled charging, automatic voltage detection, multi-stage charging (bulk, absorption, float/maintenance), reverse hook-up protection, and spark-proof technology. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

Features at a Glance

Key components: Microprocessor control unit, LED status indicators, Battery clamps, AC power cord, Mode selection button.

Installation

Unpack and inspect contents. Place on stable, dry, non-flammable surface.

1. Select Location: Choose well-ventilated area away from battery and engine.
2. Connect AC Power: Plug charger into 120V AC, 60Hz outlet. LED may illuminate.
3. Prepare Battery: Ensure battery terminals are clean and free of corrosion.
4. Connect Clamps: Attach RED clamp to POSITIVE (+) battery terminal. Attach BLACK clamp to NEGATIVE (-) battery terminal or vehicle chassis ground.

WARNING! Always connect clamps to battery before plugging into AC outlet to prevent sparking. Keep charger away from flammable materials.

First-Time Setup

Once connected, charger will automatically begin charging process.

1. Automatic Detection: Charger detects battery voltage (6V or 12V) automatically.
2. LED Indicators: Observe LED lights:
   • POWER (Green): AC power connected.
   • CHARGING (Red): Bulk/Absorption charging in progress.
   • MAINTAINING (Green): Float/maintenance mode active.
   • FAULT (Red Flashing): Error condition (reverse connection, bad battery).
3. Charging Completion: Charger automatically switches to maintenance mode when battery is fully charged.
4. Disconnecting: Unplug AC cord first, then remove BLACK clamp, then RED clamp.

CAUTION! Do not disconnect clamps while charger is plugged in. Ensure area is well-ventilated during charging.

Specifications

• Model: SC1361
• Input Voltage: 120V AC, 60Hz
• Output Voltage: 6V/12V DC automatic selection
• Charging Current: 1.5A (maximum)
• Battery Compatibility: 6V and 12V lead-acid batteries (Standard, AGM, Gel Cell)
• Charging Stages: 3-stage (Bulk, Absorption, Float/Maintenance)
• Protections: Reverse polarity, short circuit, overcharge
• Indicators: LED status lights (Power, Charging, Maintaining, Fault)
• Operating Temperature: 32°F to 104°F (0°C to 40°C)
• Dimensions: Compact portable design

Controls and Settings

Fully automatic operation with minimal user controls.

LED Indicators:

• POWER (Solid Green): AC power connected, charger ready.
• CHARGING (Solid Red): Battery charging in progress (Bulk/Absorption stages).
• MAINTAINING (Solid Green): Battery fully charged, maintaining optimal voltage.
• FAULT (Flashing Red): Error detected (reverse connection, damaged battery, over-temperature).

Automatic Features: Voltage detection, stage switching, maintenance mode activation.

Manual Reset: If FAULT light appears, disconnect AC power and battery clamps, wait 30 seconds, then reconnect properly.

Connecting to Battery

Proper connection sequence is critical for safety.

1. Ensure charger is unplugged from AC outlet.
2. Clean battery terminals if corroded.
3. Connect RED clamp to POSITIVE (+) battery terminal.
4. Connect BLACK clamp to NEGATIVE (-) battery terminal or clean, unpainted metal on vehicle chassis.
5. Plug charger into AC outlet.
6. Observe LED indicators for proper operation.

Tip: For maintenance charging on stored vehicles, connect directly to battery terminals. For regular use, chassis ground connection is acceptable.

Charging Process

Three-stage automatic charging cycle.

1. Bulk Stage: Delivers maximum current to bring battery to ~80% charge. RED CHARGING light is on.
2. Absorption Stage: Voltage held constant, current tapers as battery approaches full charge. RED CHARGING light remains on.
3. Float/Maintenance Stage: Battery at 100% charge. Charger switches to lower voltage to maintain charge without overcharging. GREEN MAINTAINING light illuminates.

Charging Time: Varies based on battery size and discharge level. A completely discharged battery may take 24+ hours to charge fully.

WARNING! Do not cover charger during operation. Monitor for excessive heat or unusual odors.

Maintenance Mode

After full charge, charger automatically enters float/maintenance mode.

• Maintains battery at optimal voltage for long-term storage.
• Prevents sulfation and discharge during periods of inactivity.
• Can be left connected indefinitely for seasonal vehicles (boats, motorcycles, RVs).
• GREEN MAINTAINING light indicates active maintenance mode.

Note: For best results, charge battery fully before storage and connect maintainer.

Care & Cleaning

Unplug from AC outlet and disconnect from battery before cleaning.

1. Exterior: Wipe with dry, soft cloth.
2. Clamps: Clean with wire brush if corroded. Ensure good metal-to-metal contact.
3. Cords: Inspect for damage. Do not use if cords are frayed or cracked.
4. Storage: Store in cool, dry place away from moisture and direct sunlight.

CAUTION! Do not immerse in water or use liquid cleaners. Do not disassemble charger.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. UL Listed. Copyright © Schumacher Electric Corporation. All trademarks are property of their respective owners. For support, visit www.schumacherelectric.com or contact 1-800-621-5485.

Troubleshooting

Reset: Unplug AC power and disconnect clamps for 30 seconds to reset microprocessor.

Service: 1-800-621-5485; www.schumacherelectric.com