Home » Products » PCM / BMS » 1-5S » 4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)
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4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)

Model No:PCM-L04S20-G67
Working current:20A
Size:L65*W56*T10mm
Balance:YES
Availability:
Quantity:
  • PCM-L04S20-G67
  • QUAWIN/OEM
  • 8507909000
  • Shenzhen, China
  • L/C, T/T, D/P, Western Union, Paypal, Money Gram
  • white box/polybags/at your request outer package:carton
  • 200PCS
  • 50000/Month
Technical parameter


Product name:Protection Circuit Module
Model No:PCM-L04S20-G67
For 4S Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs

Product Feature:
1. Suitable for 4 section Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs;
2. Maximum continuous working current 20A, same interface for charging/discharging;
3. Overcharge, overdischarge, short circuit, overcurrent, temperature protection, etc.;
4. Ti BQ4050/BQ40Z50 is adopted,Can read voltage, capacity, current, temperature, cycle times and other parameters;
5. Through the PCM-LCD001-415 display screen, the required information can be read;

No. Test   item(Test at normal temperature 25±2ºC ) Criterion
1 Communication Interface SMBus  
2 Capacity Designing battery capacity(PCM)     12Ah
Max capacity(Battery pack) 29000mAh
Min capacity(Battery pack)   100mAh
External capacity Indication LED
Gas gauge algorithm Impedance Track
3 Voltage Charging voltage(4S) DC:16.8V  CC/CV(4.2v/Cell)
4 Balance Cell-balance window                   100mv
Balance Resistance 100R
CCC Voltage threshold 3.27V
5 Supply Current Normal mode(Firmware running, no flash writes) 500uA
Sleep mode 100uA
Shutdown mode 1uA
Maximal continuous charging current 20A
Maximal continuous discharging current 20A
6 Over-charge Protection (single cell) Over-charge detection voltage 4.25±0.05V
Over-charge detection delay time 1S
Over-charge release voltage 4.05±0.05V
7 Over-discharge protection (single cell) Over-discharge detection voltage 2.50±0.05V
Over-discharge detection delay time 1S
Over-discharge release voltage 3.00±0.05V
9 Short protection Detection condition Exterior short circuit
Short protection Current 50±10A
Discharge short-circuiting detection delay time 200-800us
Release condition Cut load
10 Resistance Protection  circuitry ≤40mΩ
11 Temperature protection Charge temperature(1st Level Safety) 55ºC
Charge temperature detection delay time
(1st Level Safety)
2s
Charge release temperature(1st Level Safety) 50ºC
Discharge temperature (1st Level Safety) 60ºC
Discharge temperature detection delay time
(1st Level Safety)
2s
Discharge release temperature(1st Level Safety) 50ºC
Charge temperature (2nd Level Safety) 65ºC
Charge temperature detection delay time
(2st Level Safety)
0s
Discharge temperature(2st Level Safety) 75ºC
Discharge temperature detection delay time
(2st Level Safety)
0s
Operating temperature -40~+85ºC
Functional temperature -40~+110ºC
Storage temperature range -65~+150ºC
Dimension L65*W56*T10mm
B+:Battery+ 4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)
B-:Battery-
SMBD:SMBus data line
SMBC:SMBus clock line
J1:Terminals for battery voltage detection
RT1,RT2,RT4:NTC
P+:Charge+/discharge+
P-:Charge-/discharge-

4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)4s 20A PCM BMS for 14.4V 14.8V Li-ion/Lithium/ Li-Polymer 12V 12.8V LiFePO4 Battery Pack with Smbus Protocol (PCM-L04S20-G67)