1. Entwodiksyon
This manual provides detailed instructions for the safe and efficient operation of your COSOOS MiBOXER C4-12 Universal 4-Bay Smart Battery Charger. This intelligent charger is designed to accommodate a wide range of rechargeable battery types and sizes, offering advanced features such as rapid charging, temperature control, and comprehensive display information. Please read this manual thoroughly before first use to ensure proper functionality and safety.

Image 1: The COSOOS MiBOXER C4-12 Smart Battery Charger and its included power adapter.
2. Enfòmasyon sou Sekirite
Tanpri li tout avètisman ak enstriksyon sekirite yo anvan ou itilize pwodui sa a. Si ou pa swiv enstriksyon sa yo, sa ka lakòz chòk elektrik, dife oswa blesi grav.
- Sekirite jeneral: Always use the charger in a dry, well-ventilated area. Avoid exposure to water, high temperatures, or direct sunlight.
- Batri konpatibilite: Only charge compatible rechargeable batteries as specified in this manual. Attempting to charge non-rechargeable batteries or incompatible types may cause explosion or leakage.
- Kontwòl Tanperati: The charger features intelligent temperature control. If the battery temperature exceeds 60℃ (140℉), the charging speed will be reduced. If it exceeds 70℃ (158℉), charging will stop automatically.
- Pwoteksyon twòp chaj: The charger automatically stops charging when batteries are fully charged to prevent overcharging.
- Reverse Polarity & Short Circuit Protection: The charger is equipped with protection against incorrect battery insertion and short circuits. An error symbol will be displayed if detected.
- Fonksyon Aktivasyon: The smart charger can activate over-discharged batteries.
- Sipèvizyon: Do not leave the charger unattended during operation, especially when charging for the first time.
- Domaj: If the charger or power adapter is damaged, discontinue use immediately and contact customer support.

Image 2: The charger features multiple protection mechanisms including flame-retardant materials, reverse battery protection, and short circuit protection.
3. Pake kontni
Verifye ke tout atik yo prezan nan pakè ou a:
- 1 x COSOOS MiBOXER C4-12 Smart Battery Charger (Batteries not included)
- 1 x pouvwa adaptè (12V/5A)
- 1 x manyèl itilizatè

Image 3: The package includes the C4-12 charger, power adapter, and user manual.
4. Espesifikasyon
| Paramèt | Valè |
|---|---|
| Modèl | C4-12 |
| Dimansyon | 6.2in x 4.7in x 1.7in (15.7cm x 11.9cm x 4.3cm) |
| Pwa | 485g (1.07 lbs) |
| Materyèl | Fireproofing PC+ABS |
| Antre Voltage / Kouran | DC 12V 5A |
| Output Current (Li-ion) | Maximum 4*3A |
| Output Current (Ni-MH/Ni-Cd) | Maximum 4*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 (4.2V, 4.35V, 3.6V LiFePO4) |
| Compatible Ni-MH/Ni-Cd Batteries | AA, AAA, AAAA, C, SC (1.48V) |
| Ekspozisyon | LCD milti-fonksyonèl |
5. Enstalasyon
- Dekonpoze: Retire chajè a ak tout akseswa yo nan anbalaj la avèk prekosyon.
- Konekte pouvwa: Insert the DC plug of the power adapter into the input port on the back of the charger. Plug the AC end of the power adapter into a standard wall outlet (AC 90-260V). The LCD display will illuminate.
- Premye ekspozisyon: Upon power-up, the LCD will show a brief self-test, then display 'NULL' for empty slots.
6. Operasyon Enstriksyon
The C4-12 charger features four independent charging bays, allowing simultaneous charging of different battery types.
6.1 Mete batri yo
- Identify the correct polarity (+/-) on your battery and the charger slot.
- Gently slide the battery into an empty charging slot, ensuring proper contact with the positive and negative terminals. The spring-loaded negative pole slide track accommodates various battery lengths.
- The charger will automatically detect the battery type (Li-ion, Ni-MH/Ni-Cd) and begin charging. The LCD will display charging information for that slot.
6.2 Konprann Ekran LCD a
The large LCD display provides real-time information for each charging slot:
- Kalite batri: Indicates detected battery chemistry (e.g., Li-ion 4.2V, Ni-MH/Ni-Cd).
- Voltage (V): Aktyèl batri voltage.
- Kouran (A): Chaj aktyèl ampepòk.
- Tan pou chaje: Elapsed charging duration.
- Battery Capacity (mAh/mWh): Accumulated charge capacity.
- Internal Resistance (mΩ): Displays the battery's internal resistance.
- Temperature (℃/℉): Real-time battery temperature.
- Batri Percentage: Estimated charge level.
- Charge Symbol: Indicates active charging.

Image 4: The LCD provides rich information including battery type, temperature, internal resistance, current, voltage, and charge status.
6.3 Mode and Slot Buttons
Use the 'SLOT' and 'MODE' buttons to interact with the charger:
- SLOT Button: Press to cycle through the display information for each individual charging slot.
- Bouton MODE: After selecting a slot with the 'SLOT' button, press 'MODE' to change charging parameters (e.g., voltage for Li-ion batteries like 4.2V, 4.35V, or 3.6V LiFePO4). A long press may be required to enter mode selection.
The charger automatically selects the optimum charge current. For Li-ion batteries, the maximum is 3A per bay. For Ni-MH/Ni-Cd batteries, the maximum is 1A per bay.

Image 5: Key features include 3A/bay charging for Li-ion, automatic battery recognition, intelligent temperature control, and support for various battery types.
7. Antretyen
To ensure the longevity and optimal performance of your COSOOS MiBOXER C4-12 charger:
- Netwayaj: Dekonekte plato a anvan ou netwaye li. Sèvi ak yon twal mou epi sèk pou siye sifas la. Pa sèvi ak pwodui netwayaj abrazif oswa solvan.
- Depo: Sere chargeur a nan yon kote ki fre epi sèk, lwen limyè solèy dirèk ak imidite lè w pa ap itilize li.
- Enspeksyon: Periodically inspect the power adapter and charging slots for any signs of damage or wear.
NAN. Depanaj
Si ou rankontre pwoblèm ak plato ou a, gade pwoblèm ak solisyon komen sa yo:
| Pwoblèm | Kòz posib | Solisyon |
|---|---|---|
| Display shows 'Error' or 'NULL' | Incorrect battery insertion, short circuit, or incompatible battery. | Ensure battery is inserted with correct polarity. Check for any foreign objects in the slot. Verify battery type is compatible. |
| Batri pa chaje | Poor contact, battery too deeply discharged, or charger malfunction. | Re-insert battery, ensuring good contact. The charger may attempt to activate deeply discharged batteries automatically. If not, the battery may be beyond recovery. |
| Charger or battery becomes excessively hot | High ambient temperature, faulty battery, or internal issue. | Ensure adequate ventilation. The charger will reduce current or stop charging if temperature limits are exceeded. If overheating persists, remove battery and discontinue use. |
| LCD backlight dims after 1 minute | Operasyon nòmal. | This is a power-saving feature. Press any button to re-illuminate. |
9. Garanti ak sipò
COSOOS products are manufactured with quality and reliability in mind. For warranty information or technical support, please refer to the contact details provided on the product packaging or visit the official COSOOS websit la. Kenbe resi acha ou kòm prèv acha pou nenpòt reklamasyon garanti.