DALY H Series Standard LiFePO4 battery BMS 12V 4S 20A with NTC Sensor Balance Function


4 series cell compatibility
12V nominal voltage
20A continuous charge capability
20A continuous discharge capability
Cell voltage monitoring
Overcharge and over-discharge protection
Temperature monitoring


DALY standard BMS  is specially used for electric tricycle, suitable for 3-24S, 40/60/100A, Li-ion/Lifepo4 nmc battery. Compact size
complete functions: overcharge protection, over-discharge protection
over-current protection, short-circuit protection, 
waterproof protection, shock-proof protection
temperature control protection and electrostatic protection.


It is suitable for large single cell battery pack, cylindrical cell battery pack and soft cell battery pack, which can meet the requirements of various application scenarios


Making load easy to start
High-power pre-charging can effectively avoid false triggering of protection caused by high current at startup and avoid multiple unsuccessful power-ups.


100mA passive balance Extend battery life
Balance efficiency is more than 3 times higher than the conventional BMS with 30mA passive balance.


Upgraded temperature protection, Make Lithium battery safer
All series of the BMS are equipped with NTC to monitor temperature changes in real time.


Installation and wiring in 3 easy steps
Step 1: Solder the sampling cables: The first cable in black in the sampling cable set is connected to the negative terminal of the battery, the second cable (red) is connected to the positive terminal of the first string of batteries, and the third cable (red) is connected to the positive terminal of the second string of batteries. And so on, until all cables are connected.


Step 2: Check the cables: After connecting the cables, measure the voltage between two adjacent cables starting from the header to make sure there are no wrong connections or missing connections.


Step 3: Connect the output wires: Connect the B- wire of BMS to the total negative terminal of the battery pack, and then plug the sampling cable to BMS. After activating the BMS, make sure that the voltage (battery voltage) between B+ & B- and the voltage between P+ & P- are consistent.