Battery Protection Circuit Module (PCM) for 74V 19 cells in series Li-ion/Li-Polymer Battery Packs

Home->PCM for Li-ion/Li-Polymer Battery Packs ->For 20S~32S Packs (74V~118.4V)-> For 20S Packs (74V)

Protection Circuit Module for 74V 20S Li-ion and Li-polymer battery pack

Part number: HCX-D276

Features and Benefits

1.Protection Circuit Module for 74V 20S Li-ion and Li-polymer battery pack;
2.PCM/PCB applies for 20 cells Li-ion/Li-polymer battery pack;
3.with short circuit/over current protection;
4.With cell balance function;
5.Compatible with both Li-ion and Li-Polymer cells. 

6.How balancing function works? after battery pack is fully charged. PCM will detect each cell's voltage and trim higher voltage down until other cells reach the same voltage level. Therefore, it helps cells have longer service life. 
 

Specifications

Item

Contents

Criteria

1

Model

HCX-D276

  20S-55A working current

2

Voltage

Charging voltage

84V

3

Current

Maximal continuous charging current

55A

Maximal continuous discharging current

55A

Current consumption

≤50μA

4

Overcharge Protection

Over charge detection voltage

4.2V~4.35V(Adjustable)

Over charge detection delay time

0.5S~2S

Over charge release voltage

4.0V~4.2V(Adjustable)

5

Over Discharge Protection

Over discharge detection voltage

2.3V~3.0V(Adjustable)

Over discharge detection delay time

50~200mS

Over discharge release voltage

2.3V~3.0V(Adjustable)

6

Over Current Protection

Over current detection voltage

0.1V~0.2V(Adjustable)

Over current detection current

Adjustable

Detection delay time

5~20mS

Release condition

Cut load,automatically recover

7

Short Circuit Protection

Detection condition

Exterior shot circuit

Detection delay time

200~500uS

Release condition

Cut load,automatically recover

8

Balance/Equilibrium

Balance voltage for single cell

4.20V±0.025V

Balance current for single cell

84mA±10mA

9

Resistance

Inner resistance

≤20mΩ

10

Temperature

Operating temperature range

 0~+85°C

Storage temperature range

 0~+85°C

11

Size  (L*W*T)

L130*W58*T25mm

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