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2-in-Series 8A BMS for 7.4V 18650 Battery in Massager Battery

Application

A powerful square BMS 45x8mm constant 8A peak 16A to protect single cell/battery while charging and discharging built aside body of Li-Ion 7.4V 18650 in portable electric massage guns.
Simple Parameters

HUNGSANG-ION-PCM4508-S2A8

Battery Matched: Li-Ion 7.2V/7.4V 18650/21700          Applications: Massage Gun

No.

 Descriptions of Test

Data

1

Voltage

Charging Voltage

DC: 8.4V CC/CV

Charger Voltage Recommended

9V

2

Current

Constant Charging Current max.

4A

Constant Discharging Current max.

8A *Optional 4A/5A/6A

Current consumption for single cell

≤10μA

Balanced Current on Charing

N/A

3

Over-Charge
(cell)

Over charge detection voltage

4.28±0.025V

Over charge detection delay time

0.5S

Over charge release voltage

4.075±0.025V

4

Over-Discharge
(cell)

Over-Discharge Reaction Voltage

2.9±0.1V

Over-Discharge Reaction Delay

150 mS

Over-Discharge Voltage to be released

3.0±0.1V

5

Over-Current

Over-Current Detected Voltage

150±30mV

Over-Current Detected Current

16A±0.5A

Reaction Delay

12±0.5ms

Release condition

Load Removed

6

Short-Circuit

Detection condition

Exterior short circuit

Detection delay time

300us

Release condition

Load Removed

7

Resistance

Protection  circuitry (B- TO P-)

≤40mΩ

8

Temperature

Operating Temperature Range

-40 to +70℃

Storage Temperature Range

-40 to +90℃

9

Weight

Gross Weight

 10g

10

Dimension

Diameter X Thickness (mm)

45x8mm

11

Applications

Portable Consuming electronics device, like solar light

12

Remarks:

Nickel strips of plated-coating available on request


Best Matching Charger Recommended

Best Matching Battery Recommended

2S BMS Model List

 

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HUNGSANG-ION-PCM4508-S2A8 2HUNGSANG-ION-PCM4508-S2A8HUNGSANG-ION-PCM4508-S2A8 3


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