1. Introdución
The MiBOXER C4-12 is an advanced four-slot smart charger designed for a wide range of rechargeable batteries. It features independent charging channels, automatic battery type detection, and multiple safety protections. This manual provides essential information for the safe and efficient operation of your C4-12 charger.
2. Instrucións de seguridade
- Lea este manual atentamente antes do primeiro uso.
- Non intente cargar baterías non recargables.
- Use só o adaptador de alimentación proporcionado.
- Non desmontes, modifiques nin provoques curtocircuítos no cargador.
- Keep the charger away from water, moisture, high temperatures, and direct sunlight.
- Asegúrate dunha ventilación axeitada durante a carga. Non cubras o cargador.
- Supervise the charging process, especially when charging new or unfamiliar battery types.
- If any abnormality occurs, unplug the charger immediately.
3. Contido do paquete
- 1 x MiBOXER C4-12 Battery Charger
- 1 x Adaptador de alimentación (DC 12V 5A)
- 1 x Manual de usuario
4. Características do produto
- Four Independent Charging Slots: Each slot operates independently, allowing simultaneous charging of different battery types and sizes.
- Alta corrente de carga: Up to 3.0A charging current per slot, enabling rapid charging of high-capacity batteries.
- Ampla compatibilidade: Supports various Li-ion (4.2V/4.35V) and Ni-MH/Ni-Cd (1.48V) battery sizes, including 10340 to 26650 for Li-ion, and AAAA, AAA, AA, A, SC, C, D for Ni-MH/Ni-Cd.
- Detección intelixente: Automatically identifies battery type (Li-ion, Ni-MH, Ni-Cd) and selects the optimal charging mode.
- Pantalla avanzada: Provides real-time information such as charging current, voltage, capacity, internal resistance, and charging time.
- Monitorización de temperatura: Automatically detects battery temperature to prevent overheating.
- 0V Activation: Capable of activating deeply discharged Li-ion batteries.
- Proteccións de seguridade: Features over-charge, over-discharge, short-circuit, and reverse polarity protection.
- Construción duradeira: Made from fire-resistant PC and ABS materials.

Image: The MiBOXER C4-12 charger highlighting its automatic functions, including optimal current matching, temperature detection, battery capacity calculation, percentage display, automatic battery recognition, 0V activation, internal resistance detection, and charging time accumulation.

Image: The MiBOXER C4-12 charger showcasing its broad compatibility with numerous Li-ion battery sizes (from 10340 to 26650) and Ni-MH/Ni-Cd battery types (AAAA, AAA, AA, A, C, D).
5. Especificacións
| Parámetro | Valor |
|---|---|
| Modelo | C4-12 |
| Vol. De entradatage / Actual | DC 12V / 5A |
| Vol. De saídatage (Li-ion) | 4.2 V ± 0.1% |
| Vol. De saídatage (Ni-MH/Ni-Cd) | 1.48 V ± 0.1% |
| Output Current (Li-ion) | Max 4 x 3A |
| Output Current (Ni-MH/Ni-Cd) | Max 4 x 1A |
| Compatible Li-ion Batteries | 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650 |
| Compatible Ni-MH/Ni-Cd Batteries | AAAA, AAA, AA, A, SC, C, D |
| Número de slots | 4 |
| Material | PC + ABS (Fire-resistant) |
| Peso | 485 gramos |
| Dimensións | 16.2 cm (Length, other dimensions not specified) |
6. Configuración
- Desempaquetar o cargador: Carefully remove the C4-12 charger and its accessories from the packaging.
- Conectar enerxía: Insert the DC plug of the provided power adapter into the input port on the back of the charger. Plug the other end of the power adapter into a suitable wall outlet (100-240V AC).
- Pantalla inicial: The charger's display will illuminate, indicating it is powered on and ready for use.

Image: The MiBOXER C4-12 smart charger shown alongside its power adapter, ready for connection.
7. Instrucións de funcionamento
- Inserir pilas: Insert one or more rechargeable batteries into the charging slots. Ensure the positive (+) and negative (-) terminals of the battery match the markings on the charger. The charger will automatically detect the battery type and begin charging.
- Pantalla do monitor: The LCD screen will show real-time charging status for each slot, including voltage, current, charged capacity (mAh), internal resistance, and charging time.
- Select Slot Information: Preme o RANURA button to cycle through the detailed information for each individual charging slot.
- Adjust Charging Parameters (Manual Mode):
- While a battery is charging, press the RANURA button to select the desired slot.
- Manteña premido o MODO button for a few seconds to enter manual setting mode.
- Preme o MODO button repeatedly to cycle through adjustable parameters (e.g., charging current).
- Usa o RANURA button to change the value of the selected parameter.
- Once settings are adjusted, the charger will resume charging with the new parameters.
- Finalización da carga: The charger will automatically stop charging when the batteries are fully charged. The display will indicate completion.
- Eliminar baterías: Once charging is complete, remove the batteries from the slots.

Image: The MiBOXER C4-12 charger with four batteries inserted into its slots, demonstrating its multi-slot charging capability.

Image: The MiBOXER C4-12 smart charger illustrating its versatility by showing various devices that use the types of batteries it can charge, such as toy cars, remote controls, electronic cigarettes, electric shavers, flashlights, and microphones.
8. Mantemento
- Limpeza: Disconnect the charger from power before cleaning. Use a soft, dry cloth to wipe the surface of the charger. Do not use abrasive cleaners or solvents.
- Almacenamento: When not in use, store the charger in a cool, dry place, away from direct sunlight and moisture.
- Evitar impacto: Do not drop or subject the charger to heavy impact.
9 Solución de problemas
- O cargador non se acende:
- Ensure the power adapter is securely connected to both the charger and the wall outlet.
- Verifique que a toma de corrente da parede funcione.
- A batería non se carga:
- Check if the battery is inserted with correct polarity (+/-).
- Ensure the battery is a compatible rechargeable type.
- Limpe os contactos da batería e os contactos do cargador se parecen sucios.
- The battery might be deeply discharged (0V activation should attempt to revive it, but some batteries may be beyond recovery).
- Mensaxe de erro na pantalla:
- Refer to the specific error code (if displayed) in the full user manual for detailed instructions.
- Often indicates a battery fault (e.g., short circuit, over-voltage) or incorrect battery insertion. Remove and re-insert the battery.
- Charger or Battery Getting Hot:
- Some warmth is normal during charging. However, if it becomes excessively hot, immediately remove the battery and unplug the charger.
- Garantir unha ventilación adecuada ao redor do cargador.
10. Garantía e soporte
The MiBOXER C4-12 charger comes with a 3 ano de garantía. For any quality issues, operational questions, or technical support, please contact MiBOXER customer service. We are committed to providing 100% satisfaction and support for our products.