FOXSUR FBC122408D Automatic Smart Battery Charger/Maintainer User Manual

1. Introduction

This manual provides essential instructions for the safe and effective use of your FOXSUR FBC122408D Automatic Smart Battery Charger/Maintainer. This device is designed for charging and maintaining 12V and 24V lead-acid batteries, including Calcium, AGM, EFB, MF, FLOODED, VRLA, SLA, and Wet types. It features intelligent CPU control, automatic voltage detection, and multiple charging modes to optimize battery performance and longevity. Please read this manual thoroughly before operation.

2. Safety Information

WARNING: Always follow these safety precautions to prevent injury or damage.

Do not attempt to charge non-rechargeable batteries.
This charger is NOT suitable for lithium batteries.
Ensure proper ventilation during charging to prevent gas buildup.
Avoid open flames or sparks near the battery during charging.
Always connect the charger to the battery terminals before plugging it into a power outlet. Disconnect from the power outlet first before disconnecting from the battery.
Connect the red (+) clamp to the positive battery terminal and the black (-) clamp to the negative battery terminal.
Do not open the charger casing. Refer all servicing to qualified personnel.
Protect the charger from direct sunlight and moisture.
In case of reverse connection or output short-circuit, the LCD will display 'ERO'. Correct the connection immediately.

3. Product Overview

The FOXSUR FBC122408D is a compact and intelligent battery charger designed for ease of use and optimal battery care. It features an LCD display and a single mode button for operation.

3.1 Components

Main Unit: Houses the control circuitry, display, and mode button.
Power Cord: Connects the charger to an AC power outlet.
Battery Clamps: Red (+) and Black (-) clamps for connecting to battery terminals.
LCD Display: Shows charging status, voltage, current, temperature, and selected mode.
Mode Button: Used to cycle through different charging modes.

3.2 LCD Display Indicators

The LCD provides real-time information about the charging process:

Charging Voltage and Current: Displays the current voltage (V) and amperage (A) being delivered to the battery.
Charging Temperature: Shows the internal temperature of the charger, which influences charging mode selection (Summer/Winter).
Charging Mode: Indicates the currently active charging mode (e.g., CAR/TRUCK, MOTORCYCLE, AGM, REPAIR).
Battery Level Indicator: A graphical representation of the battery's charge status (20%, 40%, 60%, 80%, 100%).
'ERO' Error: Indicates a reverse connection or output short-circuit.
Winter/Summer Mode: Automatically detected based on ambient temperature. A snowflake icon indicates Winter mode.

3.3 Product Images

FOXSUR FBC122408D Battery Charger with dimensions — Image 1: FOXSUR FBC122408D Battery Charger with key dimensions (17cm length, 9.8cm width, 110cm power cord, 60cm clamp cables).

FOXSUR FBC122408D Battery Charger with Auto-Voltage Detection feature — Image 2: FOXSUR FBC122408D Battery Charger highlighting Auto-Voltage Detection for 12V and 24V batteries, suitable for various vehicles.

FOXSUR FBC122408D Battery Charger LCD display examples — Image 3: Examples of the LCD display showing temperature, current, pulse repair, voltage, short circuit protection, and reversed polarity warnings.

FOXSUR FBC122408D Battery Charger front view with LCD showing 'OFF' — Image 4: Front view of the FOXSUR FBC122408D Battery Charger with the LCD displaying 'OFF' status.

FOXSUR FBC122408D Battery Charger side view — Image 5: Side view of the FOXSUR FBC122408D Battery Charger, showing its robust casing.

FOXSUR FBC122408D Battery Charger back label with model and input/output details — Image 6: Back label of the FOXSUR FBC122408D Battery Charger, detailing model FBC122408D, input 100-240V, output DC 12V 8A / 24V 4A, and safety warnings.

FOXSUR FBC122408D Battery Charger connected to a car battery in an engine bay — Image 7: The FOXSUR FBC122408D Battery Charger connected to a car battery within an engine bay, demonstrating typical use.

FOXSUR FBC122408D Battery Charger packaging and included user manual — Image 8: Packaging of the FOXSUR FBC122408D Battery Charger, showing the unit and its included user manual.

4. Setup and Connection

Follow these steps to safely connect your charger to a battery:

Ensure the charger is disconnected from the AC power outlet.
Identify the positive (+) and negative (-) terminals on your battery.
Connect the RED (+) clamp of the charger to the POSITIVE (+) battery terminal.
Connect the BLACK (-) clamp of the charger to the NEGATIVE (-) battery terminal.
Once the clamps are securely connected, plug the charger's power cord into a suitable AC power outlet (100-240V).
The charger will automatically detect the battery voltage (12V or 24V) and display the current battery status.

5. Operating Modes

The charger features a single "MODE" button to cycle through various charging programs. The intelligent CPU control automatically adjusts charging parameters based on ambient temperature (Summer/Winter mode detection) and battery type.

CAR/TRUCK Mode: Standard charging mode for larger 12V/24V automotive batteries.
MOTORCYCLE Mode: Optimized for smaller 12V/24V motorcycle batteries. Can also be used for maintaining or trickle charging larger batteries.
AGM Mode: Specifically designed for Absorbent Glass Mat (AGM) batteries.
REPAIR Mode (PUL): Utilizes pulse repair technology to desulfate and recondition slightly damaged batteries, improving their capacity and extending lifespan. Note: This mode cannot activate a completely dead battery or repair severely damaged cells.
Summer Mode: Automatically activated in warmer temperatures, adjusting charging to prevent overcharging.
Winter Mode: Automatically activated in colder temperatures, adjusting charging to ensure full charge.

To select a mode, press the "MODE" button repeatedly until the desired mode indicator lights up on the LCD display.

6. Maintenance

Proper maintenance ensures the longevity of your charger and batteries:

Cleaning: Wipe the charger casing with a dry, soft cloth. Do not use harsh chemicals or abrasives.
Storage: Store the charger in a cool, dry place away from direct sunlight when not in use.
Cable Care: Inspect cables and clamps regularly for damage. Replace if frayed or broken.
Battery Maintenance: Regularly check battery fluid levels (for wet cell batteries) and keep terminals clean.
The charger is designed to be left connected for long-term maintenance (trickle charging) without overcharging.

7. Troubleshooting

Problem	Possible Cause	Solution
Charger not turning on.	No power from outlet; loose connection.	Check power outlet; ensure power cord is securely plugged in.
LCD displays 'ERO'.	Reverse polarity connection; output short-circuit.	Disconnect immediately. Reconnect RED (+) to positive and BLACK (-) to negative. Ensure clamps are not touching each other.
Battery not charging.	Battery severely damaged; incorrect mode selected; poor connection.	Try REPAIR mode (if applicable); ensure correct mode for battery type; check clamp connections. Battery may be beyond repair.
Charger gets warm.	Normal operation during charging.	Ensure adequate ventilation. If excessively hot, disconnect and allow to cool.

8. Specifications

Model: FBC122408D
Input Voltage: 100-240V AC, 50/60Hz
Output Voltage: DC 12V / 24V (Auto-detection)
Output Current: 12V 8A, 24V 4A
Max Power: 140W
Battery Types: Most types of lead-acid batteries including Calcium, GEL, AGM, Wet, EFB, MF, FLOODED, VRLA, SLA. (Not for Lithium batteries)
Battery Capacity Range: MOTO: 6AH - 30AH; CAR: 30AH - 150AH
Protection: Overcharging, Overvoltage, Overcurrent, Overheating, Low Voltage, Reverse Polarity, Short-circuit.
Dimensions: Approximately 9.96 x 5.79 x 2.56 inches
Item Weight: Approximately 1.23 pounds (560 Grams)
Color: Yellow
Manufacturer: Foxsur

9. Warranty and Support

For warranty information and technical support, please refer to the contact details provided with your purchase or visit the official FOXSUR website. Keep your proof of purchase for warranty claims.

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