Schumacher SE-1010-2 Owner's Manual

The Schumacher SE-1010-2 is a 10-Amp, 2/10-Amp Manual Battery Charger with automatic voltage detection for 6V and 12V standard, AGM, and gel cell batteries. It features a microprocessor control, LED indicators for charge status, reverse hook-up protection, and a multi-stage charging process for optimal battery health and longevity. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting to Battery 7. Charging Process 8. Safety Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Charger unit, Battery Clamps (red/black), AC Power Cord, LED Status Indicators, Charge Rate Selector Switch.

Feature	Description
Microprocessor Control	Automatically adjusts charge rate and detects battery voltage
Charge Rate Selector	2A for maintenance/trickle charge; 10A for standard charging
LED Status Indicators	Show power, charging, and charge complete status
Reverse Hook-up Protection	Prevents damage if clamps are connected incorrectly
Multi-Stage Charging	Bulk, absorption, and float modes for optimal charging
Automatic Voltage Detection	Detects 6V or 12V battery automatically
Battery Type Compatibility	Standard, AGM, and gel cell batteries
Cooling Fan	Thermally controlled for quiet operation
AC Input	Standard 120V AC household outlet
Heavy-Duty Clamps	Insulated, corrosion-resistant for secure connection

Installation

Unpack and inspect contents. Place charger on stable, dry, level surface away from battery.

Position charger: Ensure charger is in a well-ventilated area, away from flammable materials.
Prepare battery: Ensure battery terminals are clean and free of corrosion.
Connect AC power: Plug charger into a grounded 120V AC outlet. Do not connect to battery yet.
Select charge rate: Set switch to 2A (trickle/maintenance) or 10A (standard charge) based on battery size/condition.

WARNING! Risk of explosive gases. Work in well-ventilated area. Keep sparks, flames away. Wear eye protection.

First-Time Setup

Power on charger; observe LED indicators.

Verify power: Green POWER LED should illuminate when plugged in.
Connect clamps: FIRST connect RED clamp to POSITIVE (+) battery terminal. THEN connect BLACK clamp to NEGATIVE (-) terminal or grounded metal on vehicle frame.
Observe detection: Charger will automatically detect battery voltage (6V or 12V).
Begin charging: CHARGING LED will illuminate. Fan may run intermittently.

CAUTION! Always connect clamps in the specified order to prevent sparking. Ensure clamps have solid metal-to-metal contact.

Specifications

Model: SE-1010-2
Charge Rates: 2 Amp, 10 Amp (manual selection)
Input Voltage: 120V AC, 60Hz
Output Voltage: Automatic detection for 6V and 12V batteries
Compatible Batteries: Standard (flooded), AGM (Absorbent Glass Mat), Gel Cell
Charging Stages: 3-stage (Bulk, Absorption, Float/Maintenance)
Protections: Reverse polarity, short circuit, overcharge
Indicators: LED (Power, Charging, Charge Complete)
Dimensions: Approximately 9" L x 7" W x 4" H
Weight: Approximately 4.5 lbs

Controls and Settings

Front Panel: POWER LED (green), CHARGING LED (red), CHARGE COMPLETE LED (green), Charge Rate Selector Switch (2A/10A).

Operation: Plug into AC outlet. Select charge rate. Connect to battery. LEDs indicate status.

LED Status Guide:
- POWER (Green Steady): AC power connected, charger ready.
- CHARGING (Red Steady): Battery is accepting charge.
- CHARGE COMPLETE (Green Steady): Battery is fully charged; charger is in maintenance mode.
- CHARGING (Red Blinking): Possible fault (bad cell, sulfation).
- No POWER LED: Check AC outlet and power cord.

Connecting to Battery

Correct connection sequence is critical for safety.

Ensure charger is unplugged from AC outlet and power switch is off.
Clean battery terminals if necessary.
Connect RED clamp to POSITIVE (+) battery terminal.
Connect BLACK clamp to NEGATIVE (-) battery terminal or a clean, unpainted metal part of the vehicle chassis/engine block.
Plug charger into AC outlet. Select charge rate.
To disconnect: Unplug from AC outlet first, then remove BLACK clamp, then RED clamp.

Tip: Connecting the negative clamp to the chassis helps avoid sparks near the battery, which can ignite hydrogen gas.

Charging Process

The microprocessor controls a 3-stage charging cycle.

Bulk Stage: Delivers maximum current (2A or 10A) until battery reaches ~80% charge. CHARGING LED is steady red.
Absorption Stage: Voltage is held constant while current tapers down. Battery reaches ~100% charge.
Float/Maintenance Stage: Voltage is reduced to a safe level to maintain full charge without overcharging. CHARGE COMPLETE LED illuminates green. Charger can be left connected indefinitely for maintenance.

WARNING! Do not leave a charging battery unattended for extended periods initially. Check for excessive heat or gassing.

Safety Features

Reverse Polarity Protection: Prevents operation if clamps are reversed; no damage to charger or battery.
Short Circuit Protection: Safeguards against output shorts.
Overcharge Protection: Microprocessor prevents overcharging by switching to float mode.
Thermal Protection: Fan and internal controls prevent overheating.

Care & Maintenance

Unplug and disconnect from battery before cleaning. Wipe exterior with dry cloth. Keep vents clear of dust. Inspect clamps and cords periodically for damage.

CAUTION! Do not use water or cleaning fluids. Do not disassemble charger. Store in a cool, dry place.

Regulatory Information

This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Copyright © Schumacher Electric Corporation. All trademarks are property of their respective owners. For support, visit www.schumacherelectric.com or contact customer service at 1-800-621-5485.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No LED lights when plugged in	No AC power / Faulty outlet	Check outlet with another device; ensure cord is fully plugged in.
POWER LED on, but CHARGING LED does not come on	Clamps not connected / Poor connection / Reverse polarity	Check clamp connections; clean terminals; ensure correct polarity (red to +).
CHARGING LED blinks red	Battery voltage too low / Bad battery cell / Sulfation	Try a 10A charge for 5-10 mins. If blinking continues, battery may be defective.
Charger seems to stop quickly	Battery already charged / Small battery	Normal. CHARGE COMPLETE LED will illuminate. Verify battery voltage with meter.
Battery gets hot or gases excessively	Overcharging / Wrong battery type / High charge rate for small battery	Disconnect immediately. Check battery type compatibility. Use 2A rate for small batteries.
Fan runs continuously or is loud	High ambient temperature / High load	Ensure ventilation is adequate. This may be normal during Bulk stage.

Reset: Unplug from AC and battery for 2 minutes to reset microprocessor.

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