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MAXKGO 4S-14S 30A BMS Protection Board Hardware Ternary Polymer Lithium Battery BMS Board

Description

Product Description--

Charging current: ≤10A

Discharge current: 30A

Internal resistance: ≤15mΩ

Charging voltage:The number of Li-ion batteryin series connection X 4.2V
Wiring : Same Port

 

Overcharge protection——

Detection voltage: 4.25±0.025V

Detection delay: 1000±500MS

Release voltage: 4.15±0.05V


Over-discharge voltage protection——

Detection voltage: 2.75±0.1V

Detection delay: 1000±500MS

Release voltage: 3.0±0.1V


Balanced voltage——

Detection voltage: 4.15±0.025V

Detection delay: 100±50MS

Balance current: 42±5MA


Over discharge current protection——

Detection voltage: 50±15MV

Detection delay: 1000±500MS

Current protection: 50±8A


Short circuit protection--

Trigger condition: external short circuit

Detection delay: 300us

Release condition: disconnect the load


Temperature control protection——

Charge and discharge over-temperature protection: 55℃

Charge and discharge high temperature release temperature: 75℃

Release condition:During normal working temperature


Self-consumption——

Working power consumption: <35UA

Over-discharge power consumption(Sleeping State): <10UA

Operating temperature range: -30°~+80°C

 

Product Features--

  • Overcharge protection
  • Over discharge protection
  • Overcurrent protection
  • Balanced protection
  • Temperature control protection
  • Applicablefor 4S-7S / 8S-14S Li-ion battery

 

Package——

4S-7S:
1* 4-7S BMS PCBA board
1*HY2.0 single head 8P line

Net weight:12.2g

Weight:87g

Size:47.6*32*9.2mm

8S-14S:
1* 8-14S BMS PCBA board
1*HY2.0 single head 7P line
1*HY2.0 single head 8P line


Net weight:13.3g

Weight:96g

Size:47.6*32*9.2mm

 

ATTENTION——

1. It is strictly forbidden to insert balance wires into BMS before connecting batteries.Must make sure that the cable is soldered correctly first , and then connect the BMS board.

2. The sequence of connecting wires for BMS:

a.From thin black balance wire to stare, the 2ndwire(thin red wire)connect with the 1stbattery’s positive pole.Then connect each cell’s positive pole in order until the last one B+.
b.Please do not insert the plug directly after the cable is connected.Measure the voltage between each two adjacent metal terminals on the back of the plug. If it is a ternary polymer battery, the voltage should be between 3.0 ~4.2V, and the voltage of the iron-lithium battery should be between 2.0 ~3.6V. The voltage should be between 1.5~2.75V.
c.After confirming that the wiring sequence and voltage of the cables are correct, insert them into the socket of the protection board.

Attentionplease: The cables of different manufacturers are not universal, please make sure to use the matching cables.

3. After the wiring is completed, measure whether the voltage of battery B+and B- ,andthe voltage of B-and C- are equal. If they are equal, the protection board is working normally and can be used normally. If it is not equal, please check the wiring again.


MAXKGO 4S-14S 30A BMS Protection Board Hardware Ternary Polymer Lithium Battery BMS Board

Product form

Product Description-- Charging current: ≤10A Discharge current: 30A Internal resistance: ≤15mΩ Charging voltage:The number of Li-ion batteryin series connection X 4.2VWiring :... Read more

SKU: BMS4S7S02
Barcode: BMS4S7S02

$15.80 $6.99 Excl. VAT

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    • Shipped today? Order within: Aug 23, 2025 17:00:00 +0800

    Description

    Product Description--

    Charging current: ≤10A

    Discharge current: 30A

    Internal resistance: ≤15mΩ

    Charging voltage:The number of Li-ion batteryin series connection X 4.2V
    Wiring : Same Port

     

    Overcharge protection——

    Detection voltage: 4.25±0.025V

    Detection delay: 1000±500MS

    Release voltage: 4.15±0.05V


    Over-discharge voltage protection——

    Detection voltage: 2.75±0.1V

    Detection delay: 1000±500MS

    Release voltage: 3.0±0.1V


    Balanced voltage——

    Detection voltage: 4.15±0.025V

    Detection delay: 100±50MS

    Balance current: 42±5MA


    Over discharge current protection——

    Detection voltage: 50±15MV

    Detection delay: 1000±500MS

    Current protection: 50±8A


    Short circuit protection--

    Trigger condition: external short circuit

    Detection delay: 300us

    Release condition: disconnect the load


    Temperature control protection——

    Charge and discharge over-temperature protection: 55℃

    Charge and discharge high temperature release temperature: 75℃

    Release condition:During normal working temperature


    Self-consumption——

    Working power consumption: <35UA

    Over-discharge power consumption(Sleeping State): <10UA

    Operating temperature range: -30°~+80°C

     

    Product Features--

    • Overcharge protection
    • Over discharge protection
    • Overcurrent protection
    • Balanced protection
    • Temperature control protection
    • Applicablefor 4S-7S / 8S-14S Li-ion battery

     

    Package——

    4S-7S:
    1* 4-7S BMS PCBA board
    1*HY2.0 single head 8P line

    Net weight:12.2g

    Weight:87g

    Size:47.6*32*9.2mm

    8S-14S:
    1* 8-14S BMS PCBA board
    1*HY2.0 single head 7P line
    1*HY2.0 single head 8P line


    Net weight:13.3g

    Weight:96g

    Size:47.6*32*9.2mm

     

    ATTENTION——

    1. It is strictly forbidden to insert balance wires into BMS before connecting batteries.Must make sure that the cable is soldered correctly first , and then connect the BMS board.

    2. The sequence of connecting wires for BMS:

    a.From thin black balance wire to stare, the 2ndwire(thin red wire)connect with the 1stbattery’s positive pole.Then connect each cell’s positive pole in order until the last one B+.
    b.Please do not insert the plug directly after the cable is connected.Measure the voltage between each two adjacent metal terminals on the back of the plug. If it is a ternary polymer battery, the voltage should be between 3.0 ~4.2V, and the voltage of the iron-lithium battery should be between 2.0 ~3.6V. The voltage should be between 1.5~2.75V.
    c.After confirming that the wiring sequence and voltage of the cables are correct, insert them into the socket of the protection board.

    Attentionplease: The cables of different manufacturers are not universal, please make sure to use the matching cables.

    3. After the wiring is completed, measure whether the voltage of battery B+and B- ,andthe voltage of B-and C- are equal. If they are equal, the protection board is working normally and can be used normally. If it is not equal, please check the wiring again.


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