1. Introduzione
This manual provides essential instructions for the safe and effective use of your DALY BMS 13S 48V 250A Li-ion Battery Protection Module. Please read this manual thoroughly before installation and operation to ensure proper functionality and safety.
Figure 1: DALY BMS 13S 48V 250A Li-ion Battery Protection Module
2. Informazioni sulla sicurezza
Adhering to safety precautions is crucial when working with battery management systems. Failure to follow these guidelines can result in injury, damage to equipment, or fire.
- Always wear appropriate personal protective equipment (PPE), including safety glasses and insulated gloves, when handling batteries and electrical components.
- Ensure all connections are correct and secure before applying power. Incorrect wiring can cause damage to the BMS, battery pack, or connected equipment, and poses a fire hazard.
- Non cortocircuitare i terminali della batteria o l'uscita del BMS.
- Avoid exposing the BMS to moisture, extreme temperatures, or corrosive environments.
- Only use the BMS with compatible Li-ion battery packs (13S, 48V nominal).
- In caso di dubbi su qualsiasi aspetto dell'installazione o del funzionamento, consultare un professionista qualificato.
3. Prodotto finitoview
The DALY BMS 13S 48V 250A Li-ion Battery Protection Module is designed to protect 13-series (13S) 48V Li-ion battery packs. It offers comprehensive protection features to optimize battery performance and extend its lifespan.
- Caratteristiche di protezione: Includes overcurrent, overcharge, overdischarge, short circuit, and temperature protection.
- Durata: Features double protection with injection patent technology and a patent shell, providing waterproof, dustproof, shockproof, and anti-static properties.
- Qualità: Constructed with high-quality components for pressure resistance, durability, and high acquisition accuracy.
- Facilità di installazione: Designed for easy plug-and-unplug connections between the battery pack and the BMS.
Figura 2: in alto view of the DALY BMS showing main power cables and balance lead connector.
Figura 3: lato view of the DALY BMS with approximate dimensions (221mm x 130mm x 32mm).
4. Installazione e cablaggio
4.1 Contenuto della confezione
Verificare che tutti gli articoli siano presenti nel pacco:
- 1x 3.7V Li-ion NCM BMS
- 1x NTC sensor
- 1xSampcavo lungo
- 1x Manuale di istruzioni
Figura 4: Esample of DALY BMS package contents.
4.2 Schema elettrico
Figure 5: Wiring Diagram Instruction for DALY BMS.
I. Connection sequence of protection board and battery:
Attenzione speciale: The cables provided by different manufacturers are not universally compatible. Always use the supporting cables supplied with your DALY BMS.
- Importante: When soldering the sampling cable, ensure the cable is non inserted into the BMS.
- Collegare la sampling line: Start with the thin black line to the total negative electrode (B-). The second line (red line) connects to the positive electrode of the first battery string. Continue connecting each subsequent line to the positive electrode of each battery string until the last line connects to the total positive electrode (B+).
- After connecting the balance cables, do not immediately insert the plug into the BMS. First, measure the voltage between each two adjacent metal terminals on the back of the plug. For Li-ion batteries, the voltage should be between 3.0V and 4.15V. For LiFePO4 batteries, it should be between 2.5V and 3.6V. For LTO batteries, it should be between 1.8V and 2.8V. Ensure the voltage is correct before proceeding.
- Connect the b-wire (thick blue wire) of the protection plate to the negative pole of the battery pack.
- Finally, insert the balance cable plug into the BMS.
II. After wiring:
- Measure whether the battery B+, b-voltage, and B+, p-voltage are equal. This confirms that the voltage of the battery pack itself is equal to the voltage after passing through the protection board. If they are equal, the BMS is functioning normally. If not, recheck the wiring sequence.
- The positive electrodes of the charge and discharge terminals are directly connected to the total positive electrode B+ of the battery.
- For common port BMS models, the negative electrodes of both charge and discharge are connected to the P- terminal of the protection board.
For an official website tutorial, please visit: https://www.dalyelec.cn/newsshow.php?cid=24&id=73
5. Istruzioni per l'uso
Once properly installed, the DALY BMS will automatically manage the charging and discharging of your Li-ion battery pack. It continuously monitors cell voltages, currents, and temperatures to ensure safe operation within specified parameters. The BMS will initiate protective actions (e.g., cutting off charge/discharge) if any parameter exceeds safe limits, indicated by a temporary interruption of power flow.
6. Manutenzione
The DALY BMS is designed for minimal maintenance. Periodically inspect all wiring connections for tightness and signs of wear or corrosion. Ensure the BMS unit is kept clean and free from dust or debris. Avoid physical impact or excessive vibration. Do not attempt to open or repair the BMS unit yourself, as this will void the warranty and may cause damage.
7. Risoluzione Dei Problemi
If the battery pack or connected equipment is not functioning as expected, consider the following common issues and their potential solutions:
- Nessuna potenza in uscita: Check all wiring connections, especially the B- and P- terminals. Verify that the battery pack voltage is within the normal operating range. The BMS may have activated a protection feature (e.g., over-discharge protection); try charging the battery.
- Problemi di ricarica: Ensure the charger is compatible and functioning correctly. Check for overcharge protection activation. Verify balance lead connections are secure and in the correct sequence.
- Surriscaldamento: Ensure adequate ventilation around the BMS and battery pack. Reduce load if continuous high current is causing excessive heat.
- BMS non si attiva: Recheck the balance lead connection sequence and ensure all cell voltages are within acceptable limits before inserting the balance plug into the BMS.
Per ulteriore assistenza, fare riferimento al sito ufficiale website or contact DALY customer support.
8. Specifiche tecniche
The following table outlines the key technical specifications for the DALY 13S Li-ion (Standard) BMS:
| Descrizione | Specificazione | Unità | |
|---|---|---|---|
| Scarico | Corrente di scarica continua | 250A | |
| Over Discharge Current Detect | 500A | ||
| Main Circuit Conduct Inner Resistance | <20 | mΩ | |
| Carica | Volume di caricatage (per cella) | 4.2V | V |
| Corrente di carica | 125A | ||
| Protezione da sovraccarico | Over Charge Detect Voltage | 4.25±0.05 | V |
| Over Charge Protection Delay | 1 | S | |
| Sovraccarico Rilascio Voltage | 4.15±0.05 | V | |
| Bilancia | Volume di rilevamento dell'equilibriotage | 4.13 | V |
| Balance Release Voltage | 4.13 | V | |
| Corrente di equilibrio | 30±5 | mA | |
| Protezione da scarica eccessiva | Over Discharge Detect | 2.7±0.05 | V |
| Over Discharge Detect Delay | 1 | S | |
| Volume di rilascio di scarica eccessivatage | 3.0±0.05 | V | |
| Protezione da sovracorrente | Over Charge Current Detect Delay | 1 | S |
| Short Circuit Protection Condition | Scarico | ||
| Protezione da cortocircuito | Short Circuit Detect Delay | 200-500 | uS |
| Rilascio della protezione da cortocircuito | Scarico | ||
| Protezione della temperatura | Temperature Protection Degrees | Charge: -20~55 °C, Discharge: -40~75 °C | |
| Autoconsumo | Corrente di lavoro | 100-200 | uA |
| Sleeping Current (over-discharge) | 0 | uA | |
| Temperatura di lavoro | Intervallo di temperatura | Temperatura -20~60 °C | |
| Temperatura di conservazione | Intervallo di temperatura | Temperatura -40~85 °C | |
9. Applicazioni
The DALY BMS is suitable for a wide range of applications utilizing Li-ion battery packs, including:
- Electric scooters and E-bikes
- Tourist sightseeing vehicles and electric tricycles
- Low-speed electric vehicles (EVs)
- Emergency UPS systems
- Solar street lights and photovoltaic energy storage
- RV and home energy storage systems
Figure 6: Wide range of applications for DALY BMS products.
Figure 7: DALY BMS integrated into a solar street light battery system.
10. Garanzia e supporto
This DALY BMS product comes with a quality guarantee, being ISO/FCC/RoHS/PSE/CE APPROVED, ensuring compliance with international standards. DALY is committed to customer satisfaction and offers 24-hour one-on-one customer service and lifetime technical support.
For any inquiries, technical assistance, or support, please contact DALY customer service through the official channels provided at the point of purchase or on the DALY official websito.