Schumacher Speed Charger 1.5 Amp Manual

The Schumacher Speed Charger 1.5 Amp is a compact, automatic battery charger designed for 6V and 12V lead-acid batteries, including standard, AGM, and gel cell types. It features automatic voltage detection, multi-stage charging (bulk, absorption, float), reverse hook-up protection, and a maintenance mode to keep batteries fully charged. Ideal for motorcycles, ATVs, lawn tractors, snowmobiles, and other small vehicles. Below are key sections for safety, features, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Safety Instructions 3. Installation & Setup 4. Specifications 5. Controls and Indicators 6. Charging Procedure 7. Maintenance Mode 8. Care & Storage 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Charger unit, Battery Clamps (red/black), AC power cord, LED status indicators.

Feature	Description
Automatic Voltage Detection	Detects 6V or 12V battery automatically
Multi-Stage Charging	Bulk, Absorption, and Float stages for optimal charging
Maintenance Mode	Automatically switches to float mode to maintain charge
Reverse Polarity Protection	Protects charger if clamps are connected incorrectly
Spark-Proof Technology	Reduces risk of sparks during connection
Compact & Portable	Lightweight design for easy transport and storage
LED Status Indicators	Shows charging status and fault conditions
AC Input	Standard 120V AC, 60Hz wall outlet
Output Current	1.5 Amp continuous output
Compatible Battery Types	Standard, AGM, Gel Cell (lead-acid)

Safety Instructions

Read all instructions before use. Use in well-ventilated area.

Wear eye protection and avoid leaning over battery.
Do not charge frozen or damaged batteries.
Ensure area is free of flames, sparks, and flammable materials.
Connect to battery before plugging into AC outlet.
Disconnect AC power before removing clamps from battery.

WARNING! Risk of explosive gases. Battery acid can cause severe burns. Keep out of reach of children.

Installation & Setup

Unpack and inspect contents. Ensure battery is in a stable, dry location.

Prepare battery: Clean terminals if corroded. Remove battery caps (if applicable) to vent gases.
Connect clamps: RED clamp to POSITIVE (+) terminal. BLACK clamp to NEGATIVE (-) terminal or grounded metal.
Plug in charger: Insert AC plug into 120V outlet. Charger will automatically detect battery voltage.
Monitor LEDs: Refer to indicator chart for charging status.

CAUTION! Never connect clamps in reverse order. Ensure firm connection to terminals.

Specifications

Model: Speed Charger 1.5 Amp
Input Voltage: 120V AC, 60Hz
Output Voltage: Automatic 6V/12V DC
Charging Current: 1.5 Amps (continuous)
Battery Compatibility: 6V and 12V lead-acid (Standard, AGM, Gel Cell)
Charging Stages: 3-stage (Bulk, Absorption, Float)
Protections: Reverse polarity, short circuit, overcharge
Indicators: LED (Power, Charging, Maintenance, Fault)
Operating Temperature: 32°F to 104°F (0°C to 40°C)
Dimensions: Compact design (approx. 6" x 3" x 2")
Weight: Lightweight (approx. 1.5 lbs)

Controls and Indicators

Unit features LED status lights to monitor charging process.

LED Indicators:

POWER (Green): Lit when AC power is connected.
CHARGING (Red): Lit during bulk/absorption charging stages.
MAINTENANCE (Green): Lit when battery is fully charged and in float/maintenance mode.
FAULT (Red Flashing): Indicates reverse connection, bad battery, or other error.

No manual controls; operation is fully automatic once connected.

Charging Procedure

Automatic charging for 6V/12V batteries.

Ensure battery is in a safe, ventilated location.
Connect clamps: Red to positive (+), black to negative (-).
Plug charger into AC outlet. POWER LED will light.
CHARGING LED will light (red) while battery is charging.
When battery reaches full charge, CHARGING LED turns off and MAINTENANCE LED lights (green).
Charger will maintain battery indefinitely in float mode.
To disconnect: Unplug AC power first, then remove black clamp, then red clamp.

Tip: For deeply discharged batteries, charging may take several hours to complete.

Maintenance Mode

After full charge, charger switches to float/maintenance mode automatically.

MAINTENANCE LED indicates active float charging.
Maintains optimal voltage without overcharging.
Safe for long-term connection (weeks or months).
Ideal for seasonal vehicles or storage.

Note: Periodically check battery and connections during extended maintenance.

Care & Storage

Unplug and disconnect before cleaning. Store in dry, cool place.

Wipe charger with dry cloth; do not use liquids or solvents.
Inspect clamps and cords for damage before each use.
Coil cords loosely for storage; avoid kinks or sharp bends.
Store in original box or protective case if available.

CAUTION! Do not expose to rain, snow, or excessive moisture. Keep ventilation openings clear.

Regulatory Information

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

Troubleshooting

Symptom	Possible Cause	Corrective Action
No LED lights	No AC power	Check outlet; ensure plug is fully inserted; try different outlet.
FAULT LED flashing	Reverse connection / bad battery	Disconnect and reconnect clamps correctly. Test battery voltage.
CHARGING LED stays on for extended time	Deeply discharged or large battery	Allow more time (up to 24 hrs). If no progress, battery may be defective.
Charger gets warm	Normal operation	Some warmth is normal. If excessively hot, disconnect and allow to cool.
Battery not holding charge	Old or sulfated battery	Test battery with voltmeter; replace if voltage drops quickly after charging.

Reset: Unplug charger, disconnect clamps, wait 30 seconds, then reconnect.

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