FOXSUR FPT-250 – 12V/25A & 24V/15A Smart Battery Charger with Repair Function

FOXSUR FPT-250 – 12V/25A & 24V/15A Smart Battery Charger with Repair Function

The FOXSUR FPT-250 is an advanced and intelligent battery charger specially developed to charge and maintain 12 V and 24 V batteries in vehicles such as cars, motorcycles, boats, and RVs. With support for a range of different battery technologies like lead-acid, AGM, GEL, EFB, and LiFePO4, this is a versatile solution for everything from everyday maintenance to repairing deeply discharged or sulfated batteries.

Thanks to the 7-stage microprocessor-controlled charging process, charging is automatically optimized according to the battery's needs. The smart control adjusts the charging voltage according to temperature and protects the battery against overcharge, short circuit, and reverse polarity. A clear LED display shows the current voltage, current, and temperature throughout the process.

Specifications

• Model: FOXSUR FPT-250
• AC Input: 100–240 V 50/60 Hz
• Output Voltage: 12 V / 24 V (automatic selection)
• Output Current: 12 V 25 A & 24 V 15 A
• No-load Voltage: 17.0–17.5 V
• Starting Voltage: > 5.0 V
• Battery Capacity: 6 Ah – 400 Ah
• Power Consumption (load): Max. 350 W
• Power Consumption (no-load): approx. 3 W
• Cooling: Active fan
• Efficiency: > 85 %
• Compatible Battery Types: Lead-acid, AGM, GEL, EFB, Ca/Ca, LiFePO4
• Color: Red, EU standard

Features & Benefits

• 7-Stage Charging: Microprocessor-controlled process for optimal charging and maintenance.
• Broad Battery Support: Works with 12 V/24 V lead-acid, AGM, GEL, EFB, and LiFePO4 batteries.
• Repair Mode: Can revive deeply discharged or sulfated batteries.
• Temperature-Adapted Charging: Protects against over- or undercharging in different climates.
• High Safety: Built-in protection against reverse polarity, short circuit, overcurrent, and overheating.
• LED Display: Clear reading of voltage, current, and temperature in real-time.
• Maintenance Charging: Leave the battery connected without risk of overcharging.
• Compact and Efficient: Easy to use, with high efficiency (>85%).
• Universal Use: Suitable for everything from motorcycles to large vehicles and boats (6 Ah – 400 Ah).

The FOXSUR FPT-250 is more than just a regular charger – it's a smart solution for extending battery life, improving performance, and providing maximum peace of mind regardless of vehicle type.

Compatibility

The FOXSUR FPT-250 is a universal battery charger that works with a wide range of battery types and vehicles. Thanks to its smart charging system, it can be used for both smaller and larger applications.

Supported Battery Types

• Lead-acid (open and maintenance-free)
• AGM (Absorbent Glass Mat)
• GEL
• EFB (Enhanced Flooded Battery)
• Ca/Ca batteries
• LiFePO4 (lithium iron phosphate)

Capacity Range

• Suitable for batteries from 6 Ah to 400 Ah
• Perfect for motorcycles, cars, trucks, boats, RVs, and other vehicles

Voltage Support

• 12 V: up to 25 A charging current
• 24 V: up to 15 A charging current

Step-by-step manual

Follow these simple steps to use the FOXSUR FPT-250 safely and effectively:

Preparations

1. Check the battery's specifications and ensure it is supported by the charger.
2. Ensure the battery is not frozen or physically damaged.
3. Place the charger in a well-ventilated environment, away from direct sunlight and heat sources.
4. Connect the charger to a grounded 230 V outlet (100–240 V compatible).

Connection

1. Connect the red clamp to the battery's positive terminal (+).
2. Connect the black clamp to the battery's negative terminal (-).
3. Then, plug the charger into the wall socket.

Selection of charging mode

1. Select the battery type (AGM, GEL, EFB, LiFePO4, lead-acid) via the control panel.
2. The charger automatically identifies the voltage (12 V or 24 V).
3. If necessary, activate repair mode to revive deeply discharged batteries.

Charging process

• The charger automatically goes through 7 stages – from soft start to full charge and maintenance charging.
• The LED display shows real-time data: voltage, current, temperature, and charging status.
• In case of errors (e.g., reverse polarity, short circuit, or overcharge), charging is automatically interrupted.

After charging

1. Unplug the charger from the wall socket before removing the clamps.
2. First, remove the black clamp (-), then the red (+).
3. The charger can be left connected in maintenance mode to keep the battery in top condition.

Safety instructions

• Do not charge non-rechargeable or damaged batteries.
• Avoid sparks, open flames, or smoking near the battery.
• Always wear safety glasses and gloves when working with lead-acid batteries.
• Never place the charger directly on the battery during charging.
• Keep children away from the charger.

Frequently Asked Questions (FAQ)

What batteries can I charge with the FOXSUR FPT-250?

The charger works with 12 V and 24 V batteries of type lead-acid, AGM, GEL, EFB, Ca/Ca, and LiFePO4. Capacity: 6–400 Ah.

Can the charger repair a completely dead battery?

It has a repair mode that can restore heavily discharged or sulfated batteries. However, a completely defective battery may need to be replaced.

Can I leave the charger connected for a long time?

Yes, thanks to the maintenance charging mode, you do not risk overcharging. It automatically adapts to the battery's status.

How do I know the battery is fully charged?

The LED display shows the charging status. When charging is complete, the charger switches to maintenance mode and shows a full level.

Is the FOXSUR FPT-250 safe to use?

Yes, it has built-in protection against short circuit, reverse polarity, overcharge, and overheating. However, always follow the safety instructions.

Tips & advice

• Charge the battery regularly for longer life.
• Use repair mode for batteries that feel weak or have been sitting for a long time.
• Always charge in a well-ventilated environment – lead batteries can emit gas.
• Keep the clamps clean and free from corrosion for best charging effect.
• Check the temperature – avoid charging in extreme cold or heat.

Package contents

• 1 × FOXSUR FPT-250 smart battery charger
• 1 × EU power cable
• 1 × User manual

Important notices & disclaimer

The FOXSUR FPT-250 is intended for charging and maintaining compatible 12 V and 24 V batteries. Incorrect use can cause damage to the battery or charger.

The user is responsible for only charging batteries supported according to specifications. Always follow safety instructions: do not smoke near the battery, avoid sparks, and protect eyes/skin from contact with battery acid.

The product is not intended for children or individuals who cannot follow the instructions without supervision. Resellers and manufacturers are not responsible for damages resulting from incorrect use.

Summary

The FOXSUR FPT-250 is a powerful and reliable 12V/25A & 24V/15A smart battery charger with a repair function. It is suitable for both private individuals and professional users who want a safe and efficient solution to charge, maintain, and extend the life of their batteries.