Home->PCM for Li-ion/Li-Polymer Battery Packs ->For 6S~10S Packs (22.2V~37V)-> For 7S Packs (25.9V)

Battery Protection Circuit Module (BMS/PCM) for 7S 25.9V Li-ion/Li-Polymer Battery Packs

Part number: HCX-D725V2

Features and Benefits

1.Protection Circuit Board for 25.9V 7S Li-ion and Li-Polymer battery pack;

2.PCM applies for 7 cells Li-ion/Li-Polymer battery pack;

3.To prevent the battery packs from overcharge,overdischarge,over current, over temperature ,short circuit ;

4.With cell balance/equilibrium 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.

7.PCM comes with all the voltage detection wires and connectors.

Specifications

 

Item

Contents

Criteria (Adjustable)

1

Model

HCX-D725V2

7S-15A working current

2

Voltage

Charging voltage

29.4V

3

Current

Maximal continuous charging current

10A/5A

(Charge Over Current14A)

Maximal continuous discharging current

10A/15A

Current consumption

≤100μA

4

Overcharge Protection

Over charge detection voltage

4.2V~4.35V(Adjustable)

Over charge detection delay time

700mS-1300mS

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

0.7S-1.3S

Over discharge release voltage

2.3V~3.0V(Adjustable)

6

Over Current Protection

(1st Protection)

Over current detection current / Voltage

Adjustable 

Detection delay time

330mS±100mS

Release condition

Cut load & charge to recover

7

Over Current Protection

(2nd Protection)

Over current detection current / Voltage

Adjustable 

Detection delay time

33mS±10mS

Release condition

Cut load & charge to recover

8

Short Circuit Protection

Short circuit detection current 
(Also depends on your pack’s capacity)

Adjustable

Detection delay time

<280uS (fixed)

Detection condition

Cut load/charge to recover

9

Balance

Balance voltage for single cell

4.2V±0.05V

Balance current for single cell

42mA±5mA

10

Temperature Protection

Temperature Switch

/

NTC (10KNTC B=3435)

50°C±5°C

11

Resistance

Inner resistance

≤20mΩ

12

Temperature

Operating temperature range

0 ~ +85°C

Storage temperature range

0 ~ +85°C

13

Size (L*W*T)

L60m*W34mm*T10mm

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