LFP BMS

Product description –

4S100A 12V Lithium iron phosphate Battery Management system (BMS) from JBD is designed specifically for battery pack made of Lithium Iron phosphate cells also known as LFP or LiFePO4. The battery packs of nominal voltage 14.8V contains 4 cells of 3.7v in series.   It can measure, process and use the real time data of the battery to ensure the safety, stability and long life of the cells and battery.

4S100A 12V Lithium iron phosphate BMS has following salient features

• The protection of batteries from over-charge, over-discharge, over-current, short-circuit
• Short term waterproof to protect battery pack from extreme weather and tough dynamic conditions.
• Common Port design – 2 wires only, Charge and discharge port share the same port.
• BMS comes with balancing connection wire connector to reduce the wire complexity and number of solders.
• BMS has passive balancing function which gives long life to the batteries.
• The appearance is sealed by Heat Sink metal plate for the keeping the temperature under control and provide the BMS with long life.

The BMS 4S 100A comes with equalization function which facilitate to keep the cells at same level and ensure prolong life. The components used in the BMS is

1) Highly integrated IC,

2) low resistance MOS, and

3) high current equalizer.

Product Description

4S20A 12V LFP Battery Management system (BMS) is designed specifically for lithium-iron Phosphate battery packs of 48V. It can measure, collect, process and use the information data of the battery in real time and ensure the safety and stability of the battery.

4S20A 12V LFP  BMS has following salient features

• The protection of batteries from over-charge, over-discharge, over-current, short-circuit
• Short term water proof to protect battery pack from extreme weather and tough dynamic conditions.
• Common Port design – 2 wires only, Charge and discharge port share the same port.
• BMS comes with balancing connection wire connector to reduce the wire complexity and number of solders.
• Dust proof, shockproof and anti-squeezing, protects circuit from external damages.
• BMS has passive balancing function which gives long life to the batteries.
• The appearance is sealed by injection moulding process to improve moisture-proof and oxidation-proof circuit components and prolong the service life of the products and batteries.

Battery Management System for 12V 4S40A battery pack configuration of  Lithium Iron Phosphate cells. 
Over Charge Protection:              Yes
Over Discharge Voltage:              Yes
Short Circuit Protection:              Yes
Cell balancing                                  Yes
Over Current Protection              Yes
BMS Size                                           80X61X12 mm (LXWXH)
Specification:-
Discharge           
Continuous Discharging Current                               40A       
Over discharge Current Detect Voltage                    120±10A
Charge  
Charging Voltage                                                          14.6V
Charging Current                                                           20A          
Over charge protection 
Over Charge Protection Voltage                                 3.75±0.05V
Release delay of Single Over Charge Protection      1S
Over Charge Release Voltage                                      3.65±0.05V
Cell balancing   
Cell balancing Detection Voltage                                3.625V
Cell balancing Current                                                  30±5mA
Over discharge protection          
Over Discharge Detect Voltage                                   2.1±0.05V
Over discharge Detect Delay Time                             1S
Over Discharger Release Voltage                               2.4±0.05V
Charge/Discharge Overflow protection              
Discharge Current Level 2 Protection Current          120±5A
Discharge Current Level 2 Protection delay             1S
Over Current Protection Condition                            Disconnect the load
Short Circuit Protection             
Protection Condition                                                    Short circuit of External Load
Detection Delay Time                                                   250 uS
Protection Release Condition                                     Disconnect the load
Temperature Range                                                   -20ºC ~ 60ºC      
Internal Resistance                                                    ≤20mΩ