FOXSUR 12V/24V 10A Multifunctional Battery Charger/Maintainer
FOXSUR 12V/24V 10A Smart Battery Charger User Manual
Model: 12V/24V 10A Multifunctional Battery Charger/Maintainer
Brand: FOXSUR
1. Introducció
Thank you for choosing the FOXSUR 12V/24V 10A Smart Battery Charger. This fully automatic, 7-stage battery charger and maintainer is designed to efficiently charge and maintain various types of 12V and 24V batteries, including Wet, GEL, SLA, LiFePO4, Lead-Acid, and AGM batteries. It features microprocessor control for optimal charging, an intelligent digital display for real-time status, and multiple protection functions to ensure safe operation. This manual provides detailed instructions for the proper use, maintenance, and troubleshooting of your battery charger.
2. Informació de seguretat
Please read and understand all safety instructions before operating the charger. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Seguretat elèctrica:
- Ensure the charger is connected to a grounded outlet.
- No exposeu el carregador a la pluja o a la humitat.
- Never operate the charger if the power cord or clamps estan danyats.
- Always disconnect the power source before connecting or disconnecting the battery clamps.
- Seguretat de la bateria:
- Utilitzeu protecció ocular i guants quan treballeu amb piles.
- Batteries can produce explosive gases; ensure adequate ventilation.
- No carregueu bateries congelades.
- Do not charge lithium batteries (Li-ion, Li-Po) other than LiFePO4. This charger is specifically designed for LiFePO4 and lead-acid based batteries.
- Assegureu-vos de la polaritat correcta: clau vermellaamp a positiu (+), Cl negreamp a negatiu (-).
- Precaucions generals:
- Mantenir fora de l'abast dels nens.
- No desmunteu el carregador. Encarregueu tot el manteniment a personal qualificat.
- Avoid placing the charger on flammable surfaces during operation.
3. Producte acabatview
The FOXSUR Smart Battery Charger is equipped with advanced features for efficient and safe battery charging and maintenance.

Figura 3.1: Davant view of the FOXSUR Smart Battery Charger, showing the main unit, red and black battery clamps, and the AC power plug. The LCD display is visible on the charger's face.

Figura 3.2: Detallada view of the intelligent LCD display, illustrating various real-time charging statuses such as charge voltage, charge current, internal temperature, battery full indicator, repair mode, and error messages.
Característiques principals:
- Microprocessor Control (CPU): Automatically adjusts charging current and maintains battery health.
- 7-Stage Càrrega: Optimized charging process for various battery types, including desulfation and maintenance.
- Pantalla digital intel·ligent: LCD screen shows voltage, current, temperature, charging status, and battery condition.
- Àmplia compatibilitat: Suitable for 12V/24V Calcium, GEL, AGM, LiFePO4, Wet, SLA, EFB, and Lead-Acid batteries.
- Proteccions múltiples: Includes reverse polarity, output short, overcharging, overvoltage, over-temperature, and over-current protection.
- Funció de reparació del pols: Helps to restore drained and sulfated batteries, extending battery life.
Contingut del paquet:
- 1 x FOXSUR Car Battery Charger
- 1 x Manual d'usuari (Aquest document)

Figura 3.3: Illustration of the package contents, including the charger unit with its dimensions (approximately 17cm length, 10cm width, 6.5cm height), battery clamps (60cm cable), and AC power cord (110cm cable), along with the user manual.
4. Configuració
Before connecting the charger, ensure the area is well-ventilated and the battery terminals are clean.
- Prepareu la bateria: If the battery is in a vehicle, ensure the vehicle's ignition is off and all accessories are turned off. For marine applications, ensure the vessel is securely moored.
- Connecteu la bateria Clamps:
- Connecteu el VERMELL (+) cl positiuamp al terminal positiu de la bateria.
- Connecteu el NEGRE (-) cl negatiuamp al terminal negatiu de la bateria.
- For vehicle batteries: If connecting to a vehicle, connect the black clamp to the vehicle chassis away from the battery and fuel line, if the battery is not grounded to the chassis. Consult your vehicle's manual for specific grounding instructions.
- Connecteu-vos a la presa de corrent: Plug the charger's AC power cord into a standard 100-240V AC, 50-60Hz electrical outlet. The charger will automatically detect the battery voltage (12V o 24V).
- Seleccioneu el mode de càrrega: After connecting to power, the charger will display the current battery status. Press the MODE button to cycle through the available charging modes (AGM, CAR, MOTO, LiFePO4, REPAIR). Select the appropriate mode for your battery type. Note: The mode button will be locked if not pressed before connecting to the battery.

Figura 4.1: Acabatview of the multiple charging modes: AGM for AGM batteries, CAR for GEL, SLA, WET, DEEP CYCLE, EFB, Calcium batteries, MOTO for motorcycle batteries, LiFePO4 for LiFePO4 batteries, and REPAIR mode for advanced battery recovery.
5. Instruccions de funcionament
Once connected and the mode is selected, the charger will begin its automatic 7-stagprocés de càrrega electrònica.
5.1 Charging Process (7 Stagés)

Figura 5.1: Visual representation of the 7-stage charging process, including desulfation, soft start, bulk charge, absorption, battery test, recondition, and float/maintenance stages. The charger automatically progresses through these stages.
- Desulfation (DES): Uses high-frequency pulse to break down lead sulfate crystals.
- Soft Start (SS): Gently introduces current to the battery.
- Bulk Charge (CC): Charges the battery at maximum current until it reaches approximately 80% capacity.
- Absorption (CV): Charges at a constant voltage, gradually reducing current as the battery approaches full charge.
- Battery Test (TET): Tests the battery's ability to hold charge.
- Recondition (REC): Applies a controlled overcharge to recondition deeply discharged batteries.
- Float (FUL): Maintains the battery at full charge with a small, constant voltage.
5.2 Pantalla digital intel·ligent
The LCD screen provides real-time information about the charging process:
- Voltage (V): Mostra el volum actual de la bateriatage.
- Corrent (A): Shows the charging current.
- Temperatura (°C): Indicates the internal temperature of the charger.
- Estat de càrrega: Icons and text indicate the current charging stage (e.g., FUL for full, REC for recondition).
- Estat de la bateria: Indicador de nivell de bateria.
- Missatges d'error: Displays error codes or warnings if issues occur.
5.3 Desconnexió del carregador
Once charging is complete (indicated by "FUL" on the display), follow these steps to disconnect:
- Desconnectar de l'alimentació: Unplug the charger's AC power cord from the electrical outlet first.
- Desconnecteu la bateria Clamps:
- Traieu el NEGRE (-) cl negatiuamp from the battery terminal (or vehicle chassis).
- Traieu el VERMELL (+) cl positiuamp des del terminal de la bateria.
6. Manteniment
Proper maintenance ensures the longevity and optimal performance of your FOXSUR battery charger.
- Neteja:
- Before cleaning, ensure the charger is unplugged from the power outlet and disconnected from the battery.
- Netegeu l'exterior del carregador amb un drap suau i sec.amp tela. No utilitzeu productes químics aggressivs ni netejadors abrasius.
- Keep the cooling fan vents clear of dust and debris to ensure proper airflow.
- Emmagatzematge:
- Guardeu el carregador en un lloc fresc i sec quan no l'utilitzeu.
- Keep cables neatly coiled to prevent damage.
- Manteniment de la bateria:
- Regularly check battery terminals for corrosion and clean them as needed.
- Ensure battery fluid levels are adequate for non-sealed batteries.

Figura 6.1: The charger's ability to maintain various battery types (Maintenance Free, MF, Dry, Wet, AGM, Gel, EFB, Deep Cycle, Ca, LiFePO4) and its multi-voltage auto-detection (12V and 24V). It is suitable for a wide range of vehicles including cars, motorcycles, trucks, lawn mowers, pickups, RVs, boats, and ATVs.
7. Solució De Problemes
Si teniu problemes amb el carregador, consulteu els següents problemes i solucions habituals:
| Problema | Causa possible | Solució |
|---|---|---|
| El carregador no s'encén/no hi ha pantalla. | No power from outlet; loose connection; charger fault. | Check power outlet with another device. Ensure AC plug is fully inserted. Check battery clamp connexions. |
| "Error" displayed on screen. | Reverse polarity; short circuit; battery fault. | Comproveu la bateria clamp polarity (Red to +, Black to -). Inspect cables for damage or short circuits. Battery may be severely damaged or dead. |
| Charger not charging or charging slowly. | Incorrect mode selected; battery severely discharged; battery sulfation. | Ensure correct charging mode is selected for your battery type. For deeply discharged batteries, the charger may take time to initiate. Try "REPAIR" mode if sulfation is suspected. |
| Charger gets hot. | Normal operation during bulk charge; poor ventilation. | Some heat is normal. Ensure charger is in a well-ventilated area and cooling fan is not obstructed. If excessively hot, disconnect and allow to cool. |
| Cannot activate a completely dead battery. | Bateria voltage too low for charger to detect. | This charger has a minimum start voltage of 8.0V. Batteries below this voltage may not be detected or charged. The charger cannot repair severely damaged or completely dead batteries to 100% new condition. |

Figura 7.1: The charger's comprehensive protection features, including over-current, overcharge, overheat, short circuit, reverse polarity, fire materials, cooling system, and high voltage protecció, assegurant un funcionament segur.
8. Especificacions
| Paràmetre | Valor |
|---|---|
| Entrada Voltage | 100-240V CA, 50-60Hz |
| Sortida nominal | 12V 10A, 24V 5A |
| Volum inicial mínimtage | 8.0 V |
| Gamma de bateria | 6-180Ah |
| Protecció tèrmica | 65 °C +/- 5 °C |
| Refrigeració | Refrigeració per ventilador |
| Tipus de bateries | Most types of 12V/24V batteries, including Calcium, Gel, AGM, SLA, Wet, EFB, Lead Acid, LiFePO4 |
| Dimensions del producte | 6.69 x 4.33 x 2.56 polzades (17 x 11 x 6.5 cm) |
| Pes de l'article | 1.28 lliures (0.58 kg) |
9. Garantia i Suport
For warranty information and technical support, please refer to the contact details provided with your purchase or visit the official FOXSUR weblloc web. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.
This product is designed for reliability and performance. If you experience any issues not covered in this manual, please contact customer support for assistance.
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