1. Киришүү
This manual provides essential information for the safe and effective installation, operation, and maintenance of your DALY 48V 16S BMS 60A Protection Board. The Battery Management System (BMS) is designed to protect lithium battery packs from various electrical issues, ensuring optimal performance and extending battery lifespan.

Figure 1: DALY 48V 16S BMS 60A Protection Board
2. Коопсуздук маалыматы
- Always wear appropriate personal protective equipment (PPE) when handling batteries and electronic components.
- Ensure the battery pack is disconnected from any power source before installation or maintenance.
- Verify all connections and voltages with a multimeter before connecting the BMS to avoid wiring errors.
- Do not short-circuit the battery terminals or BMS connections.
- Keep the BMS away from moisture, dust, and extreme temperatures.
- If you are a novice, it is recommended to set the soldering iron temperature to about 350 degrees Celsius to prevent damage.
3. Пакеттин мазмуну
Сураныч, бардык буюмдар пакетиңизге киргизилгенин текшериңиз:
- 3.2V LiFePO4 BMS (1 unit)
- NTC sensor (1 unit)
- Sampling cable (1 unit)
- Колдонмо (1 бирдик)

Figure 2: Included components in the DALY BMS package.
4. Техникалык шарттар
The DALY 48V 16S BMS 60A Protection Board features the following specifications:
- Продукциянын өлчөмдөрү: 3.15 x 2.4 x 0.63 дюйм (80 x 61 x 16 мм)
- Элемент Салмагы: 6.2 унция (175 грамм)
- Киргизүү көлөмүtage: 48 вольт
- Клетка конфигурациясы: 16S (16 Lithium Ion batteries required)
- Разряд агымы: 60A
- Overdischarge Current: 180±30A
- Заряддоо агымы: 60A
- Overcharge Current: 70±10A
- Overcharge Voltage: 3.65V±0.05V
- Overdischarge Voltage: 2.3V±0.05V
- Заряддоо Voltage: 58.4V
- Output Wire: 10AWG/130мм
- Кабель: 24AWG/450мм

3-сүрөт: Продукциянын деталдуу мүнөздөмөлөрү.
5. Өзгөчөлүктөрү
The DALY BMS offers comprehensive protection and advanced technology:
- Коргоо функциялары: Overcurrent, Overcharge, Overdischarge, Short circuit, Temperature protection. Optimizes lithium battery performance and extends battery lifetime.
- Кош коргоо: Features injection patent technology and a patent shell for enhanced durability.
- Күчтүү дизайн: Waterproof, Dustproof, Shockproof, and Anti-static properties.
- Жогорку сапаттагы компоненттер: Pressure-resistant and durable materials with high acquisition accuracy.
- Оңой орнотуу: Designed for easy plug-and-unplug connections between the battery pack and the BMS.

Figure 4: ашыкview of DALY BMS protection features.
6. Орнотуу жана орнотуу
6.1. Материалды даярдоо
Before wiring, ensure you have the following tools and materials:
- DALY BMS unit
- Balance wires (sampling cables)
- Insulated ceramic scissors (for cutting wires)
- Мультиметр (том үчүнtage monitoring and error detection)
- Soldering iron and solder (recommended temperature: 350-420°C)
- Double-sided adhesive tape (for securing wires)
- Detection board (optional, for quick wiring error check)
Video 1: Preparing materials for DALY BMS wiring.
6.2. Determining Sampling Points
Correctly identifying sampling points is critical for proper BMS function. For a 10-string battery, there will be 11 sampling points. The first sampling point (B-) is the total negative electrode of the battery pack. Subsequent points (B1, B2, etc.) are the connection points between the negative electrode of one cell and the positive electrode of the next, up to the total positive electrode (B+).
Video 2: DALY BMS sampling point determination.
6.3. Wiring Procedure
Follow these steps carefully to wire the BMS to your battery pack:
- Коопсуз зымдар: Use double-sided adhesive tape to fix the balance wires to the battery pack, ensuring they are neatly aligned with their respective sampлиния пункттары.
- Connect B0 (Black Wire): Connect the black cable (B0) from the sampling harness to the negative terminal of the battery pack (total negative electrode).
- Connect B1-B16 (Red Wires): Connect the first red cable (B1) to the positive terminal of the first battery cell. Continue connecting each subsequent red cable (B2, B3, etc.) to the positive terminal of each consecutive battery cell, ensuring the order is correct. The last red wire will connect to the total positive electrode (B+).
- Trim and Strip Wires: Once all wires are in place, carefully cut them to the appropriate length and strip the insulation from the ends.
- Ширетүүчү зымдар: Solder each stripped wire end to its corresponding sampling point on the battery pack. Ensure strong, clean solder joints.
- Байланыштарды текшерүү: Do NOT plug the balance harness into the BMS yet. First, use a multimeter to check the voltage between adjacent wires in the harness. Each reading should correspond to the voltage of a single cell (e.g., ~3.45V for LiFePO4). Then, check the cumulative voltagар бир сampling point (e.g., B0 to B1, B0 to B2, etc.). The voltage should increase incrementally. If any reading is incorrect or a light on the detection board (if used) does not illuminate, recheck your wiring.
- Connect to BMS: After confirming all wiring is correct and voltages are accurate, carefully plug the balance harness into the designated port on the DALY BMS.

Figure 5: General wiring diagram for DALY BMS.
Video 3: Detailed DALY BMS wires welding procedure.
Video 4: Testing battery voltage before connecting with DALY BMS.
7. Операция
Once correctly installed, the DALY BMS operates automatically to manage and protect your battery pack. It continuously monitors cell voltages, currents, and temperatures to prevent conditions such as overcharge, overdischarge, overcurrent, and short circuits. The balancing function helps maintain uniform cell voltages across the pack.
Standard BMS models do not include communication functions. For smart BMS features, active balancers, parallel modules, or other accessories, please contact DALY customer service.
8. Техникалык тейлөө
- Regularly inspect the BMS and all wiring for any signs of damage, corrosion, or loose connections.
- Keep the BMS clean and free from dust and debris.
- Ensure adequate ventilation around the battery pack and BMS to prevent overheating.
- If the battery pack is not in use for an extended period, store it in a cool, dry place and follow the battery manufacturer's storage recommendations.
9. Кыйынчылыктарды
If you encounter issues with your DALY BMS, consider the following common troubleshooting steps:
- Эч кандай кубаттуулугу жок: Check all main power connections (P- and B-). Verify the total battery voltage with a multimeter. Ensure the BMS is correctly connected and not in a protected state (e.g., due to overdischarge).
- кубаттоо маселелери: Confirm the charger is functioning correctly and connected properly. Check for any overcharge protection activation.
- Unbalanced Cells: Allow the BMS to balance the cells over time. If severe imbalance persists, recheck individual cell voltages and balance wire connections.
- Ашыкча ысып кетүү: Ensure the BMS has sufficient airflow. Reduce load if operating under high current for extended periods.
- Зымдардагы каталар: Re-verify all balance wire connections using a multimeter as described in the Setup section. Incorrect wiring is a common cause of issues.
For persistent issues or complex problems, please contact DALY customer support.
10. Тиркемелер
The DALY BMS is suitable for various lithium battery applications, including prismatic cell battery packs, cylindrical cell battery packs, and pouch cell battery packs. Common uses include:
- Электр велосипеддери
- Electric two-wheelers
- Electric wheelchairs
- Electric scooters
- Ховерборддор
- Portable power supplies
- AGV Forklifts
- Photovoltaic Energy Storage
- RVs Energy Storage
- Үй энергияны сактоо

6-сүрөт: Мисamples of DALY BMS applications.
11. Product Parameters (LiFePO4 16S BMS)
Detailed electrical parameters for the LiFePO4 16S BMS:
| Description | Specification (Current in AmpЭрес) | бирдиги | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20A | 30A | 40A | 50A | 60A | 80A | 100A | 120A | 150A | 200A | 250A | |||
| разряд | Continue discharge current | 20A | 30A | 40A | 50A | 60A | 80A | 100A | 120A | 150A | 200A | 250A | A |
| Over discharge current detect | 60±10 | 100±20 | 160±30 | 180±30 | 220±40 | 360±50 | 560±50 | 260±50 | 260±50 | 500±100 | 500±100 | A | |
| Ички каршылык | Main Circuit Conduct Inner resistance <20 | мΩ | |||||||||||
| Заряддоо | Заряддоо томtage LiFePO4: 3.65V, Li-ion: 4.2V, LTO: 2.8V | V | |||||||||||
| Заряддоо ток | 10 | 15 | 20 | 25 | 30 | 40 | 50 | 60 | 75 | 100 | 125 | A | |
| Заряддан коргоо | Over charge current detect delay | 25±3 | 40±5 | 60±10 | 80±10 | 140±20 | A | ||||||
| Over charge detect voltage | 3.65±0.05 | V | |||||||||||
| Ашыкча зарядды коргоо кечигүү | 1 | S | |||||||||||
| Ашыкча заряд релиз томtage | 3.55±0.05 | V | |||||||||||
| Баланс | Balance detect Voltage | 3.525 | V | ||||||||||
| Баланс чыгаруу томtage | 3.525 | V | |||||||||||
| Баланс агымы | 30±5 | mA | |||||||||||
| Ашыкча разряддан коргоо | Over discharge detect | 2.3±0.05 | V | ||||||||||
| Over discharge detect delay | 1 | S | |||||||||||
| Ашыкча разряд чыгаруу томtage | 2.7±0.05 | V | |||||||||||
| Over Charge current protection | Over charge current detect delay | 1 | S | ||||||||||
| Over charge current protection | Off load | ||||||||||||
| Кыска туташуулардан коргоо | Short circuit protection condition | Тышкы жүктүн кыска туташуусу | |||||||||||
| Short circuit detect delay | 200-500 | uS | |||||||||||
| Кыска туташуулардан коргоону чыгаруу | Off load | ||||||||||||
| Temp Protect | Temperature protection degrees | Charge: -20~55, Discharge: -40~75 | °C | ||||||||||
| Өзүн керектөө | Иштеп жаткан ток | 100~200 | uA | ||||||||||
| Sleeping current(over-discharge) | 0 | uA | |||||||||||
| Иштөө Темп | Температура диапазону | -20~60 | °C | ||||||||||
| Сактоо температурасы | Температура диапазону | -40~85 | °C | ||||||||||
Figure 7: Detailed product parameters for LiFePO4 16S BMS.
12. Кепилдик жана колдоо
DALY offers a quality guarantee with ISO/FCC/RoHS/PSE/CE approvals. We provide 24-hour one-on-one customer service and lifetime technical support for our products.
If you require assistance or have questions regarding your DALY BMS, please contact our online customer service.





