Daly Smart WIFI BMS 4S 7S 8S 13S 14S 16S 17S 20S 24S Built-in Bluetooth 30A 40A 60A 80A 100A 120A 150A 200A Lifepo4 Li-Ion LTO

Model

DALY SMART BMS: Y-series 30-60A(YH) 80-120A(YK) 150-200A(YM)

Optional strings range：4S-8S 7S-17S 7S-24S

Optional current range：30A 40A 60A 80A 100A 120A 150A 200A

Usage Scenario

Used in RV energy storage,photovoltaic energy storage,home and outdoor energy storage,electric vehicles,tricycles,forklifts,tourist vehicles,golf cart etc.

Support Customization

Bulk orders can customize functions,parameters,logo.

Support OEM

Standard BMS, smart BMS all can be customized

For details, please contact customer service

WhatsApp：+86 18277979710

Email: yuna.luo@dalyelec.com

How to choose the right BMS

Attention

Illustration

Mismatched BMS Consequences

Lithium

BMS type and lithium battery type must be in

1、BMS damaged,even bms and battery burn out

battery type

one-to-one correspondence（Li-ion/Lifepo4)

2、The battery cannot be fully charged and discharged

Number of battery pack

BMS strings and battery strings must be in

BMS and battery burn out

strings

one-to-one correspondence

Selection method

load maximum power÷(string number of battery×overdischarge voltage)×coefficient

in experience

Depending on the battery usage scenario, the coefficient value is also different

Please consult customer service for specific values

Specialty

Bluetooth function:You can monitor battery data in real time by connecting to the APP

BMS built-in Bluetooth

Superiority

1、High-quality microelectronic components：precise and fast IC.Low resistance,high withstand voltage MOSFET.

2、Through the Bluetooth APP, the battery data is constantly monitored.

3、A variety of accessories,can easily control the data and modify the parameters.

4、A variety of communication modes,data monitoring,alarm backtracking,data reading, and upgrade can be easily realized

5、Thermal silica,accelerate the heat dissipation.Ensure the smooth operation of the battery.

6、Preset interface,buckle cable,make the connection more convenient.

Basic Functions

Over-charging protection

Over-discharging protection

Over-current protection

Temperature protection

Disconnect protection

Short Circuit Protection

Balance Function

Short Circuit protection recover

Package Contains

BMS*1pcs

Sampling cable*1pcs

Temperature probe(NTC)*1pcs

B+ cable *1pcs

English manual *1pcs

USB-Uart cable *1pcs

Optional accessories

UART to USB cable

Battery Capacity Indicator

Touch screen LCD

Customization

soft switch

RS485 and CAN Communication

key switch

DO/I port for special needs

Optional accessories, customized accessories must match the BMS model and be purchased at the same time.

please contact customer service for details

Balance cable connection

• Preparation

Find the total positive and total negative of the battery pack.

Find B-/P- of BMS

Insert temperature probe (NTC) into the BMS

• Welding

Note: When soldering, the balance cable cannot be inserted into the BMS

(1)Weld Sampling cables: Start from thin black wire to B- (total negative),then connect each cell's positive in order. Last red wire to B+ (total positive)
*Note: Do NOT plug into BMS during welding. Insulate unused wires.

(2)Check voltages: Use multimeter or wire tester to confirm each cell'svoltage is normal. Fix any miswiring or poor soldering.

(3) Weld output wires: Secure B- and P- to BMS with 10N·m torque; weld B-to battery negative.
*Note: Insulate P- before final connection.

(4) Plug NTC and Sampling cable: Insert NTC, then plug sampling cable toauto-activate BMS.

• Voltage measurement

Measure whether the battery voltage（B+→B-)is consistent with the output voltage of the BMS(B+ P-).

If the two voltage values are equal, it means that the BMS is working normally.

Passive Equalization

• Balanced Start Voltage:

3.4V

• Balanced Opening Voltage Difference:

≥20mV

• Balance Current:

100±30mV

• Balanced start when both of the following conditions are met:

1.Reach the set balanced start voltage

2.The highest voltage reaches the set balanced start voltage difference.