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4s 14.8V 20A PCM/BMS for Rechargeable Battery May 09, 2018

Basic Info

Model NO.: PCM-L04S20-311 (4S)

Color: Green

Transport Package: White Carton or Customized

Specification: 4S 20A

Origin: Shenzhen City, China

HS Code: 8536300000

Product Description

4S Li-ion /Li-polymer Battery PCM

· Apply for 4 cells Li-ion /Li-polymer Lifepo4 battery pack protection.
· Internally Trimmed Charge and Discharge Voltage Limits.
· Discharge Current Limit Detection.
· Low Current Standby Mode When Cells are Disccharged.
· High Quality and High Yield: 100% Tested before Shipment.

     Protection Circuit Module Specifications For 12.8V LiFePO4 Battery Pack
 Protection Circuit Module Specifications For 14.8V Li-ion/Li-polymer Battery Pack
Model:PCM-L04S20-311 (4S)
NoTest   itemCriterion
   Lifepo4 Li-ion/Li-polymer
1VoltageCharging voltageDC14.4VCC/CV
DC:16.8V CC/CV
Balance voltage for single cell3.6V±0.025V4.2V±0.025V
2CurrentBalance current for single cell36/72±5mA42/84±5mA
Current consumption for single cell≤50μA≤50μA
Max. continuous charging current20A20A 
Max. cont. discharging current20A20A
3Over charge
(single cell)
Over charge detection voltage3.9V±0.025V
Over charge detection delay time0.5-2.0S0.5S_2.0S 
Over charge release voltage3.80±0.05V4.15±0.05V
4Over discharge
(single cell)
Over discharge detection voltage2.0±0.05V
Over discharge detection delay time10-300mS10-1000mS
Over discharge release voltage2.3±0.05V3.0±0.1V
5Over current
Over current detection voltagedepend on the
above points
depend on the
above points
Over current detection currentfinal data fixed
from actual test
final data fixed
from actual test
Detection delay time 5-20ms5-20ms
Release conditionCut load,
Auto release
Cut load,
Auto release
Detection conditionExterior short circuit
Detection delay time100~500us
Release conditioncharge up
7ResistanceProtection  circuitry≤50mΩ
8TemperatureOperating Temperature Range-40~+85 degree
Storage Temperature Range-40~+125 degree
Over charge detection voltage (V)3.9V±0.0254.25±0.0254.35±0.025
Over charge release voltage(V)3.80±0.054.15±0.054.15±0.05
Over discharge detection voltage(V)2.3±0.082.5±0.082.7±0.08
Over discharge release voltage(V)2.7±0.13.0±0.13.0±0.1