DALY BMS 4S 12V 60A LiFePO4 Battery Protection Module Instruction Manual

1. Prodotto finitoview

The DALY BMS (Battery Management System) 4S 12V 60A LiFePO4 module is designed to protect 4-series (4S) Lithium Iron Phosphate (LiFePO4) battery packs. It ensures the safe and efficient operation of your battery system by providing essential protection functions and balancing capabilities. This standard BMS is suitable for various applications, including home energy storage and inverter systems.

Caratteristiche principali:

• Protezione completa: Includes overcurrent, overcharge, overdischarge, short circuit, and temperature protection to safeguard the battery pack.
• Bilanciamento cellulare: Helps to equalize the voltage across individual cells in the battery pack, extending battery life and improving performance.
• Design robusto: Features double protection through injection patent technology and a patent shell, offering waterproof, dustproof, shockproof, and anti-static properties.
• Componenti di alta qualità: Constructed with pressure-resistant and durable materials, ensuring high acquisition accuracy and reliability.
• Installazione semplice: Designed for straightforward connection to your battery pack.

Image 1.1: DALY BMS 4S 12V 60A LiFePO4 Battery Protection Module with included balance leads and NTC sensor.

2. Contenuto della confezione

Prima di procedere con l'installazione, verificare che tutti gli elementi siano presenti nella confezione.

Image 2.1: Contents of the DALY BMS package, including the BMS unit, sampling cable, NTC sensor, and instruction manual.

3. Informazioni sulla sicurezza

Please read and understand all safety instructions before installing or operating the DALY BMS. Failure to follow these instructions may result in electric shock, fire, serious injury, or property damage.

• Always disconnect the battery pack from any power sources before working on the BMS or battery connections.
• Ensure correct polarity when connecting the BMS to the battery pack. Incorrect wiring can damage the BMS and the battery.
• Quando si maneggiano batterie e componenti elettrici, indossare adeguati dispositivi di protezione individuale (DPI), tra cui guanti isolanti e protezioni per gli occhi.
• Non cortocircuitare i terminali della batteria o l'uscita del BMS.
• Install the BMS in a well-ventilated area, away from flammable materials.
• This BMS is designed for LiFePO4 batteries only. Do not use it with other battery chemistries.
• If you are unsure about any part of the installation or operation, consult a qualified electrician or contact DALY customer support.

4. Installazione e cablaggio

Proper installation and wiring are crucial for the safe and effective operation of the BMS. Refer to the wiring diagram below and follow the steps carefully.

Image 4.1: Wiring diagram for the DALY H series 60A BMS, illustrating connections for the battery pack, sampling cable, and output wires.

Fasi di cablaggio:

1. Collega Sampling Cables:
   • The first black cable in the sampling cable set connects to the negative terminal (B-) of the overall battery pack.
   • The second red cable connects to the positive terminal of the first battery cell (B1+).
   • The third red cable connects to the positive terminal of the second battery cell (B2+).
   • Continue this pattern until all balance cables are connected to their respective cell positive terminals.
   • Garantire la sampling cable connector is securely plugged into the BMS.
2. Collegare i cavi di uscita:
   • Connect the B- wire from the BMS to the overall negative electrode of the battery pack.
   • Connect the P- wire from the BMS to the negative terminal of your load (e.g., inverter, electric machine).
   • Connect the P+ wire from the BMS to the positive terminal of your load and charger.
3. Verifica connessioni: After connecting all cables, use a multimeter to measure the voltage between adjacent cells starting from the header. Ensure there are no incorrect connections or missing connections.
4. Attiva BMS: After activating the BMS (typically by connecting the main battery terminals and then the balance leads), measure the voltage between P+ and P-. This voltage should be consistent with the overall battery pack voltage.

Importante: Always connect the balance leads to the battery cells Prima connecting the main B- and P- wires to the BMS. Disconnect in reverse order: main B- and P- first, then balance leads.

5. Principi operativi

The DALY BMS continuously monitors the battery pack to ensure its safe and optimal performance. It provides several layers of protection:

Image 5.1: Diagram illustrating the basic protection functions of the DALY BMS, including over-charge, over-discharge, over-current, short-circuit, temperature, anti-vibration, waterproof, and electrostatic protection.

• Protezione da sovraccarico: Prevents individual cells from being charged beyond their safe voltage limit, which can lead to degradation or damage.
• Protezione da scarica eccessiva: Disconnects the load when cell voltages drop below a safe minimum, preventing irreversible damage to the cells.
• Protezione da sovracorrente: Limits the current drawn from or supplied to the battery to prevent overheating and damage to the cells or BMS.
• Protezione da cortocircuito: Immediately cuts off power in the event of a short circuit to prevent severe damage and fire hazards.
• Protezione della temperatura: Monitors the battery temperature and disconnects if it exceeds safe operating limits during charging or discharging.
• Bilanciamento cellulare: During charging, the BMS actively or passively balances the voltage of each cell to ensure they are all at a similar state of charge, maximizing the overall battery pack's capacity and lifespan.

The BMS operates automatically once correctly installed. It will trigger protection mechanisms as needed and resume normal operation once conditions return to safe parameters (e.g., after a short circuit is removed or temperature normalizes).

6. Manutenzione

The DALY BMS is designed for minimal maintenance. However, periodic checks can help ensure long-term reliability:

• Ispezione visiva: Ispezionare periodicamente il BMS e tutti i cablaggi per verificare la presenza di eventuali segni di danni, corrosione o collegamenti allentati.
• Pulizia: Keep the BMS free from dust and debris. Use a soft, dry cloth for cleaning. Do not use liquids or solvents.
• Condizioni ambientali: Ensure the BMS operates within its specified temperature and humidity ranges to prevent premature failure.
• Stato della batteria: Monitor the overall health of your battery pack. While the BMS provides protection, it cannot compensate for severely degraded cells.

7. Risoluzione Dei Problemi

If you encounter issues with your DALY BMS, consider the following troubleshooting steps:

• Nessuna uscita Voltage:
  • Check all wiring connections, especially the main B- and P- terminals, and the balance leads. Ensure they are secure and correctly polarized.
  • Verificare che il pacco batteria voltage is within the normal operating range. An over-discharge protection might be active if the voltage è troppo basso.
  • Check for a short circuit on the output. The BMS will cut off output in such cases.
  • Ensure the BMS has been properly activated after initial connection.
• Batteria non in carica:
  • Confirm the charger is functioning correctly and connected to the P+ and P- terminals.
  • Check if any cells are overcharged, triggering over-charge protection.
  • Verify the NTC temperature sensor is correctly installed and the battery temperature is within the charging range.
• Unbalanced Cell Voltages:
  • Ensure all balance leads are securely connected to their respective cell terminals.
  • Allow sufficient time for the balancing function to work, especially during the top-off charge phase.
  • Note that standard BMS units have passive balancing, which is slower than active balancing.
• Surriscaldamento del BMS:
  • Reduce the load current to ensure it does not exceed the BMS's continuous discharge current rating (60A).
  • Assicurare un'adeguata ventilazione attorno al BMS.

If the problem persists after performing these checks, contact DALY customer support for further assistance.

8. Specifiche

The following table details the technical specifications for the DALY BMS 4S 12V 60A LiFePO4 module.

Image 8.1: Detailed specifications for the DALY LiFePO4 4S 60A common port BMS with balance.

Additional Product Parameters (General for LiFePO4 4S BMS):

Image 8.2: Table showing various discharge, inner resistance, and charge parameters for LiFePO4 4S BMS across different current ratings.

Image 8.3: Table detailing overcharge protection, balance, overdischarge protection, over current protection, short circuit protection, and temperature protection parameters for LiFePO4 4S BMS.

9. Garanzia e supporto

Informazioni sulla garanzia:

DALY products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official DALY websito. Conservare la ricevuta d'acquisto come prova d'acquisto per eventuali reclami in garanzia.

Assistenza clienti:

If you have any questions, require technical assistance, or need to report an issue, please contact DALY customer service. Contact details can typically be found on the official DALY website or through your point of purchase. Please have your product model number (707338961675) and purchase information ready when contacting support.

DALY offers 24-hour one-on-one customer service and lifetime technical support.