Introduzione
This manual provides essential instructions for the safe and efficient use of your Mellif 20V 4.0 Battery and Fast Charger Kit. Please read all instructions carefully before operation and retain this manual for future reference.
Informazioni importanti sulla sicurezza
ATTENZIONE: seguire sempre le precauzioni di sicurezza di base per ridurre il rischio di incendi, scosse elettriche e lesioni personali.
- Do not expose the battery or charger to water or rain.
- Non caricare la batteria in modalità adamp o ambiente umido.
- Non incenerire la batteria.
- Non cortocircuitare i terminali della batteria.
- Use only with specified Mellif or DeWalt 20V MAX compatible tools and chargers.
- Tenere fuori dalla portata dei bambini.
Prodotto finitoview
The Mellif 20V 4.0Ah Battery and Fast Charger Kit is designed to provide reliable power for your compatible cordless tools. The battery features a high discharge rate and intelligent protection systems, while the charger ensures quick and safe charging.
Caratteristiche della batteria
- High-Performance 20V 4.0Ah: Delivers 10C/40A high discharge rate for consistent power.
- No Memory Effect & Low Self-Discharge: Ensures maximum productivity and readiness.
- Extreme Weather & Shock Resistant: Operates reliably down to -4°F (-20°C) and withstands jobsite impacts.
- Indicatore del carburante integrato: LED indicator button to check remaining battery life.
- Advanced BMS Safety System: Protects against overcharge, over-discharge, overheating, and short circuits.
- Porte USB-A e USB-C: For charging external devices (e.g., mobile phones).

Figure 1: Mellif 20V 4.0Ah Battery with highlighted features.

Figure 2: Advanced BMS Safety System and Battery Specifications.
Caratteristiche del caricatore
- Caricabatterie rapido 4.0A: Fully charges Mellif 20V and DeWalt 20V MAX lithium-ion batteries in 60 minutes or less.
- Tecnologia di ricarica intelligente: Utilizes a trickle-to-fast-to-trickle cycle to protect battery life and prevent overcharging.
- Indicatore di carica: Provides clear status of the charging process.
- Prese d'aria integrate: For efficient heat dissipation during charging.

Figure 3: Mellif 4.0 Amp Rapid-Charger with highlighted features.

Figure 4: Charger Compatibility and Specifications.
Impostare
Disimballaggio
Carefully remove all components from the packaging. Inspect for any damage. Ensure all items listed in the package contents are present.
Carica iniziale della batteria
Before first use, fully charge the battery. Connect the 4.0A Fast Charger to a standard power outlet. Slide the Mellif 20V 4.0Ah battery onto the charger until it clicks into place. The charger's indicator light will show the charging status. A full charge typically takes 60 minutes or less.
Video 1: Official Mellif video demonstrating the charging process for the 20V battery and charger kit.
Video 2: Demonstration of charging a Mellif 20V battery with a DCB112 compatible charger.
Istruzioni per l'uso
Attaching/Detaching Battery to Tool
To attach the battery, align the battery with the tool's battery port and slide it in until it clicks securely. To detach, press the battery release button (typically located on the battery itself) and slide the battery off the tool.

Figure 5: Mellif 20V Battery compatibility with various tools.
Video 3: Official Mellif video demonstrating the battery's power and compatibility with tools.
Controllo del livello di carica della batteria
Press the LED indicator button on the battery to view the current charge level. The illuminated LEDs indicate the remaining power.

Figure 6: Integrated Fuel Gauge on the battery and charger.
Ricarica di dispositivi esterni (uscita USB)
The Mellif 20V 4.0Ah battery includes USB-A and USB-C output ports. Open the protective flap on the battery to access these ports. Connect your USB-powered device (e.g., smartphone, tablet) to the appropriate port to charge it using the battery's power.
Manutenzione
Assistenza generale
Keep the battery and charger clean and dry. Wipe with a soft, dry cloth. Do not use solvents or harsh chemicals. Regularly inspect for any signs of damage or wear.
Magazzinaggio
Conservare la batteria in un luogo fresco e asciutto, lontano dalla luce solare diretta e da temperature estreme. Per una conservazione a lungo termine, assicurarsi che la batteria sia parzialmente carica (circa il 50%).
Condizioni estreme
The battery is designed to be extreme weather and shock resistant, operating effectively in temperatures as low as -4°F (-20°C). However, prolonged exposure to extreme conditions should be avoided to maximize battery life.
Risoluzione dei problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Batteria non in carica | Charger not plugged in; battery not properly seated; battery or charger fault. | Check power connection; re-seat battery; inspect for damage. |
| Charger indicator light is red/flashing | Battery too hot/cold; battery fault; charger fault. | Allow battery to reach room temperature; contact support if issue persists. |
| L'utensile non funziona con la batteria carica | Battery not properly seated; tool fault; battery fault. | Re-seat battery; test battery with another tool; contact tool manufacturer or Mellif support. |
The Advanced BMS provides comprehensive protection against overcharge, over-discharge, overheating, and short circuits. If a protection mechanism is triggered, the battery or tool may temporarily cease operation. Allow the battery to cool down or reset by removing and re-inserting it.

Figura 7: Funzionalità di protezione complete.
Specifiche
| Caratteristica | Dettaglio |
|---|---|
| Modello della batteria | MFDC204 |
| Volume batteriatage | 20V (18-20V) |
| Capacità della batteria | 4.0Ah (4000 mAh) |
| Tipo di batteria | Lithium-Ion (18650 Li-ion cells) |
| Modello di caricabatterie | MDC204 (DCB112 compatible) |
| Vol. ingresso caricatoretage | 110-120 V, 60 Hz |
| Vol. uscita caricabatteriatage | 20V |
| Corrente di carica | 4A |
| Potenza di carica | 88W |
| Tempo di carica completa | ~60 minutes (for 4.0Ah battery) |
| Dimensioni del prodotto | 7.09 x 4.53 x 5.7 pollici |
| Peso dell'articolo | 3.12 libbre (1.42 chilogrammi) |
Garanzia e supporto
Garanzia
This Mellif 20V 4.0 Battery & Fast Charger Kit is backed by a 5-year warranty, ensuring long-lasting peace of mind. Please retain your proof of purchase for warranty claims.
Assistenza clienti
For any questions, troubleshooting assistance, or warranty inquiries, please contact Mellif customer support. Refer to the product packaging or the official Mellif websito per i contatti.





