DALY Hardware BMS 15A &20A 3S to 13S Protection Board with Temperature Sensor(NTC) for Lithium Battery Pack（LifePO4，Li-ion）

Powerful Protection Function: The BMS offers a robust range of protection features, including overcharge protection, over-discharge protection, overcurrent protection, short circuit protection, and temperature protection. These ensure the battery pack is safe from damaging conditions, enhancing the longevity and performance of the cells. 【Note】Hardware BMS dosen't have communication functions.

Other Protective Functions: The BMS is built with dust-proof, shockproof, and anti-squeezing features, making it more durable and capable of withstanding harsh environmental conditions. This adds an extra layer of protection, ensuring the BMS continues to function effectively even in challenging situations, such as vibration, dust, or physical pressure. 

Wide Compatibility (Right Model Selection): DALY BMS 15A and 20A protection boards are compatible with Li-ion and LFP lithium batteries. It supports configurations from 4S to 13S. However, it is critical to select the correct model based on the voltage and current specifications of the battery pack.

Temperature Monitoring (NTC Sensor): Equipped with an NTC temperature sensor, the BMS monitors the battery pack's temperature. If the temperature rises above safe levels, the BMS disconnects the pack to prevent overheating, which could cause cell degradation or even thermal runaway.

The built-in passive balance function in the DALY BMS is a practical, efficient, and affordable solution for keeping cells balanced. It works seamlessly during charging, prevents overcharging and undercharging, and contributes to the overall reliability and lifespan of the battery pack.

Let me know if you'd like guidance on choosing the right DALY BMS model for your application!

1. Specification
   Battery Type:  Li-ion or LiFePO4 (Please choose the right model for your battery type)
   Battery Strings:  Li-ion 3-13S | LiFePO4 4-13S
   Charge voltage(V): Li-ion 4.2 x Battery Strings | LiFePO4 3.65 x Battery Strings
   Balance turn-on voltage(V): Li-ion 4.125V  | LiFePO4  3.525V   (Passive Balance function) 
   Balance current(mA): Li-ion 100mA   |  LiFePO4 70mA  (Passive Balance function)
   Single Cell over-chargeprotection voltage(V): Li-ion 4.25V | LiFePO4 3.65V
   Single Cell over-chargeprotection release voltage(V): Li-ion 4.15V | LiFePO4 3.55V
   Single Cell over-dischargeprotection voltage(V)： Li-ion 2.7V | LiFePO4 2.3V
   Single Cell over-dischargeprotection release voltage(V):  Li-ion 3.0V | LiFePO4 2.7V
   Rated discharge current (A):  15A | 20A 
   Rated charging current(A) :  15A | 20A
   Discharge over-current  protection current(A):  50A | 60A
   Charge over-current  protection current(A):  20A | 25A
   Internal impedance : Main circuit on-resistance  < 20 mΩ
   Current consumption : Self-consumption current during operation  < 400 uA
   2. Product Dimensions
   Product Size:  L * W * H (mm) = 61*35*9mm, 60g
   3. How to select the BMS  for your battery pack ?
   A. Battery Type Compatibility:   LFP or Li-ion or LTO Battery Pack.
   B. Number of Cells in Series (S) ：For example, for a 4S battery pack (four cells in series), the BMS must select the 4S.
   C.  Current Rating (Discharge and Charge Current)：For example, if your battery can discharge at 20A, your BMS must support at least 20A continuous discharge. Also you can add a margin (e.g., 20–30%) for safety.
   D. Balancing Functionality:  Passive balancing is the dissipation of excess energy in the form of heat |  Active balance is in the transfer of energy between cells.
   E: Communication Features : CAN, UART,  Bluetooth Module(Optional), Wi-Fi Module(Optional).  NOTE: Hardware BMS don't have communication function.
   Packing List:  
   Hardware BMS *1   
   Sampling Cables*1    
   NTC *1
   Users Manual*1