Schumacher Electric SC1389

Questions and Answers

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Angela WilsonJul 28, 2025
What to do if Schumacher Electric SC1389 is correctly connected but not charging?
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  David SmithJul 28, 2025
  If your Schumacher Electric Battery Charger is correctly connected but not charging, it could be due to several reasons. The battery voltage might be too low, or the bank might be turned off, indicated by the lit “OFF” LED. A bad fuse on the leads could also be the reason. You can press the Select button to choose the battery type to initiate charging. Also, the battery may be defective, so have it checked and replaced if needed. Finally, check and replace the fuse.
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Jacqueline LoveAug 3, 2025
Why is the red LED solid and battery type LED lit on my Schumacher Electric SC1389 Battery Charger?
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  Steven RileyAug 3, 2025
  If the red LED is solid and the battery type LED is lit on your Schumacher Electric Battery Charger, it indicates that the battery is not connected or there is a bad fuse on the leads. Ensure the battery is properly connected. If it is, replace the fuse.
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Robin CohenAug 8, 2025
How to fix a flashing red LED on a Schumacher Electric Battery Charger?
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  Omar WarnerAug 9, 2025
  If the red LED is flashing on your Schumacher Electric Battery Charger, it means the connections are reversed. To fix this, reverse the connections.
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Jeffery RamirezAug 15, 2025
What to do if red LED is solid and OFF LED is lit on Schumacher Electric SC1389?
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  robinsonvirginiaAug 15, 2025
  If the red LED is solid and the OFF LED is lit on your Schumacher Electric Battery Charger, it means no battery type is selected, and the bank has turned off. Press the Select button to activate the bank and select the battery type.
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Jason WeeksAug 20, 2025
Why is the red LED solid with no charging status lights on my Schumacher Electric SC1389?
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  Amber PittsAug 21, 2025
  If the red LED is solid, and no charging status or battery type LEDs are lit on your Schumacher Electric Battery Charger, the charger has detected a problem with the battery. The battery may be defective, so have it checked and replaced if necessary.

Summary

Important Safety Instructions

Save These Instructions

User is advised to save and follow all safety instructions provided.

Electrical Safety Precautions

Covers risks related to electrical shock, damaged cords, attachments, and improper use.

Hazardous Environment Warnings

Highlights risks associated with volatile atmospheres and potential explosions.

Personal Safety Precautions

General Personal Safety

Specific Safety Actions

Grounding and AC Power Cord Connections

DC Wiring Detail

Battery Connection Procedure

Multi-Battery Wiring

Inline Fuses

Control Panel Overview

LED Indicators Explained

Battery Type Selection

Operating Instructions

Charger Operation Steps

Guides the user through connecting, powering on, and initiating charging.

Interpreting Charging Status

Explains how to read the LED indicators for charging progress and status.

Troubleshooting Indicators

Describes what red LED flashing or solid lights indicate, such as reversed connections.

Specifications

Troubleshooting Guide

Common Problems and Solutions

Provides a table to diagnose issues like non-charging or LED status errors.

Before Returning for Repairs

Service and Support Information

Limited Warranty Information

Warranty Terms and Conditions

Details the one-year limited warranty, exclusions, and limitations.

Warranty Exclusions

Schumacher Electric SC1389 Specifications

General

Input Voltage	120V AC
Type	Automatic Battery Charger
Product Type	Battery Charger
Battery Type	AGM, Gel
Features	Reverse Hook-Up Protection, Auto Voltage Detection
Safety Features	Overcharge Protection, Short Circuit Protection