Model

DALY SMART Balance BMS: RTK(40A-100A) RM(150A-200A) RS(250A-500A)

Battery Type: Lifepo4(3.2v) /Li-ion(3.7v)

Balanced method: Passive Balancing 100mA

Optional strings range：4S 6S 7S 8S 10S 12S 13S 14S 16S 20S 24S

Optional current range：40A-500A

Parallel current limiting: 1A (BMS can be used in parallel directly.）

Accessories: Bluetooth module

Usage Scenario

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

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:Monitoring battery data in real time by connecting to the APP

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

Bluetooth module *1pcs

English manual *1pcs

Communication function

UART/RS485/CAN

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 Balance

Balanced Start Voltage:

3.4V

Balance off voltage

3.6V

Balanced Opening Voltage Difference:

≥20mV

Balance Current:

100±30mV

Balanced start when both of the following conditions are met:

1.The maximum voltage difference between individual cells is ≥ the equalization opening voltage difference

2.The voltage of each individual cell＞The balance turn-on voltage

3.The voltage of each individual cell＜The balance off voltage

Note：When the battery is at low voltage and discharged, the maximum balance
current is 0.8±0.2A

How to wake up BMS

If any of the following conditions are met, the system exits the sleep mode
and enters the normal running mode:

1.Plug in charger/load.

2.Press the button and release the button

3.With 485, CAN communication activation.

Note: After the single or overall over-discharge protection, it enters sleep mode, wakes up periodically every 4 hours, and starts charging and discharging MOS. If it can be charged, it will exit the resting state and enter normal charging