FOXSUR FPT-250 Smart Car Battery Charger Instruction Manual

1. Introduction

The FOXSUR FPT-250 is an intelligent, automatic battery charger designed for 12V and 24V lead-acid and LiFePO4 batteries. It features a 7-stage microprocessor-controlled charging process, temperature adaptation, and multiple safety protections to ensure efficient and safe battery charging and maintenance. This manual provides essential information for the safe and effective use of your FPT-250 charger.

Figure 1: FOXSUR FPT-250 Smart Battery Charger

2. Safety Information

WARNING: Read all safety warnings and instructions before using this product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury.

• The charger is designed for 12V and 24V Lead-Acid, LiFePO4 batteries only. Do not attempt to charge other battery types.
• Always check battery manufacturer specifications before using this charger.
• Explosive gases may be emitted from the battery during charging. Ensure adequate ventilation to prevent flames and sparks.
• Do not expose the charger to direct sunlight or high-temperature environments.
• Battery acid is corrosive. If acid comes into contact with skin or eyes, rinse immediately with water and seek medical attention.
• Do not charge a frozen or visibly damaged battery.
• Do not charge non-rechargeable batteries.
• Do not place the charger directly on the battery while charging.
• Exercise extreme caution to prevent dropping metal tools onto the battery. This could cause sparks or short-circuit the battery or other electrical parts, potentially leading to an explosion.
• When working with a lead-acid battery, remove all personal metal items such as rings, bracelets, necklaces, and watches.
• Do not smoke or allow any sparks or flames near the charging area.
• To reduce the risk of electric shock, unplug the charger from the AC outlet before performing any maintenance or cleaning.
• This appliance is not intended for use by children or individuals unable to follow these instructions, unless supervised by a responsible adult to ensure proper and safe use.

3. Product Features

The FOXSUR FPT-250 charger incorporates advanced technology for optimal battery care:

• High Efficiency: Greater than 85% efficiency for effective power conversion.
• Battery Type Selection: Supports AGM, LiFePO4, Car, and Motorcycle battery types.
• 7-Stage Microprocessor Control: Provides an optimized charging process for various battery conditions.
• Temperature Compensation: Charging voltage automatically adjusts based on ambient temperature to prevent over- or under-charging.
• Deep Discharge Recovery: Capable of recharging severely discharged or heavily sulfated batteries.
• Multiple Safety Protections: Includes reverse polarity protection, short circuit protection, over-charge protection, and spark-free contact.
• LED Digital Display: Clearly shows real-time voltage, current, temperature, and charging status.
• Ease of Use: Simple operation with clear charging status display.
• Microprocessor Controlled: Ensures precise and safe charging.
• Overcharge Prevention: Designed to prevent overcharging even when left connected.

Figure 2: Large Digital Display

Figure 3: Intelligent Multiple Protection

Figure 4: Auto Temperature Detection

Figure 5: Durable Aluminum Alloy Shell

Figure 6: Super Heat Dissipation System

4. Product Overview

The FOXSUR FPT-250 is a compact and portable unit designed for ease of use. It features a winding cable design for convenient storage and a replaceable power cord.

Figure 7: Winding Cable Design for Portability

The charger is compatible with a wide range of 12V and 24V vehicles, including:

• Cars
• Boats
• Motorboats
• Motorcycles
• Trucks
• Electric vehicles

Figure 8: Vehicle Compatibility

5. Specifications

Figure 9: Product Parameters

6. Setup

Follow these steps to set up your FOXSUR FPT-250 battery charger:

1. Plug in the AC Power: Connect the charger's power cord to a standard AC power outlet.
2. Connect the Battery: Attach the red (+) clamp to the positive terminal of the battery and the black (-) clamp to the negative terminal of the battery. Ensure a secure connection.
3. Select Charging Mode: Press the 'MODE' button to cycle through the available charging modes (CAR/BOAT, AGM, LiFePO4, REPAIR, BOOSTER) and select the appropriate mode for your battery type. The charger will automatically begin charging.

Figure 10: How to Use - Connection Steps

7. Operating Instructions

7.1. Selecting Charging Current and Mode

The FPT-250 allows you to select both the charging current and the charging mode to best suit your battery's needs.

• Current Selection: Press the 'CURRENT' button to cycle through available charging currents (e.g., 2A, 8A, 20A, 25A).
• Mode Selection: Press the 'MODE' button to select the appropriate battery type/charging program (CAR/BOAT, AGM, LiFePO4, REPAIR, BOOSTER).

Figure 11: Charging Current and Mode Selection

7.2. 8-Stage Charging Process

The charger utilizes an advanced 8-stage charging process for optimal battery health and longevity:

1. Battery Desulphation: Recovers sulfated batteries.
2. Soft Start Charge: Gentle initial charge to protect the battery.
3. Bulk Charge: Charges the battery to approximately 80% capacity.
4. Absorption Charge: Charges the battery to 100% capacity at a decreasing current.
5. Battery Test: Checks battery condition.
6. Recondition Charge: Further reconditions the battery if needed.
7. Float & Maintenance Charging: Maintains the battery at full charge.
8. Re-start Charge after Battery Discharged: Automatically restarts charging if the battery voltage drops.

Figure 12: 8-Stage Charging Process

7.3. Booster Mode

The 'BOOSTER' mode is specifically designed for 12V batteries. When selected, the charging current reaches its maximum value, and the charging time is 200 seconds. After 200 seconds, the display screen will show "on", indicating it's ready to start the car.

Figure 13: Booster Mode in Operation

8. Maintenance

• Cleaning: Disconnect the charger from the power supply and the battery before cleaning. Wipe the exterior with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
• Storage: Store the charger in a cool, dry place when not in use. Utilize the winding cable design for neat storage of cables.
• Inspection: Regularly inspect the charging cables and clamps for any signs of damage, wear, or corrosion. Replace if necessary.
• Ventilation: Ensure the charger's fan and vents are clear of obstructions to maintain proper heat dissipation.

9. Troubleshooting

If you encounter issues with your FPT-250 charger, consider the following:

• Charger not turning on: Ensure the AC power cord is securely plugged into both the charger and a live power outlet.
• Battery not charging: Verify that the battery clamps are correctly and securely connected to the battery terminals (red to positive, black to negative). Check if the correct charging mode is selected for your battery type.
• Error message on display: Refer to the specific error code displayed on the LED screen. Common issues include reverse polarity (ensure correct clamp connection) or a severely damaged battery (which the repair mode might attempt to address).
• Charger feels hot: The charger has a super heat dissipation system with a fan. Some warmth during operation is normal. However, if it becomes excessively hot, ensure proper ventilation and that the fan is not obstructed.
• Battery not holding charge after repair mode: While the repair mode can help with severely discharged or sulfated batteries, it cannot restore a battery that is internally damaged or at the end of its lifespan.

10. User Tips

• For optimal battery health, use the appropriate charging mode for your battery type (e.g., AGM for AGM batteries, LiFePO4 for lithium iron phosphate batteries).
• The 'REPAIR' mode can be beneficial for older or deeply discharged batteries, but it may take some time to complete.
• Always connect the charger to the battery first, then to the AC power. When disconnecting, unplug from AC power first, then remove battery clamps.
• The automatic temperature compensation feature helps protect your battery in varying climates, but avoid charging in extreme temperatures if possible.

11. Warranty and Support

The FOXSUR FPT-250 Smart Car Battery Charger comes with a 12-month warranty from the date of purchase. Please retain your proof of purchase for warranty claims.

For technical support, troubleshooting assistance, or warranty inquiries, please contact your seller or the manufacturer directly. Refer to your purchase documentation for specific contact details.