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Smart Active Balancer

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

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Heavy-duty Vehicle Smart Active Balancer BMS

Mrs. Kiwi Xiao

kiwi@enerkey.cn

+8615387469240

Enerkey-Tech

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3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

Brand Name:	Enerkey
Model Number:	EK-8S4EB/EK-8S8EB
MOQ:	500 pieces
Price:	$20.8-$23.8
Packaging Details:	Strong paper box +EVA Foam
Payment Terms:	L/C, D/A, D/P, T/T, Western Union,

Detail Information

Product Description

Detail Information

Place of Origin:

Shenzhen, China

Certification:

ISO9001/CE/ROHS

Document:

Product Name:

4A 8A Bidirectional DC-DC Intelligent Active Equalizer

Copper Thickness:

Application:

Cars, Electric Vehicles, Electric Tricycle

Board Thickness:

1.6mm

Battery Type:

Lithium/Lifepo4/Lto Battery Pack

Battery Strings:

3S~8S

Material:

FR-4 / HASL

Communication Port:

Bluetooth And CAN

Product Size:

L100 X W100 X T17.5mm

Weight With Package:

0.3kg

Supply Ability:

10000pcs per day

Highlight:

4A 8A Active Equalizer

Bidirectional DC-DC Converter Balancer

3S-8S LiFePO4 Balancer with CAN

Product Description

Enerkey 4A 8A Intelligent Active Equalizer With Bidirectional DC-DC Converter 3S-8S Li-ion/LiFePO4/LTO With CAN

Product Description

Advantages of Bidirectional DC-DC Smart Active Balancer:

1. Powerful balancing capability and rapid balancing speed

• High Balancing Current: Compared to the typical balancing currents of a few hundred milliamperes (mA) found in passive balancing systems, bidirectional DC-DC active balancing can achieve currents of 1A, 3A, 5A, or even 10A and above.

• Effectiveness: High current translates to a powerful energy-transfer capability. For battery cells with significant capacity disparities, it can redistribute energy within a short timeframe—drastically reducing the time required for balancing—and effectively address substantial capacity deviations, such as those resulting from varying self-discharge rates.

2. Enhance security and reliability

• Reduced risk of thermal runaway: This approach avoids localized high temperatures—a common issue with passive balancing. Furthermore, by preventing individual cells from overcharging or over-discharging, it fundamentally eliminates the two primary triggers for thermal runaway.

• Enhanced system stability: Greater consistency across the battery pack ensures a more uniform distribution of voltage and temperature during high-current charging and discharging, resulting in a more stable and reliable system.

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

Technical Parameters

Product model	4A 8A Bidirectional DC-DC Smart Active Balancer for 3-8s (EK-8S4EB / EK-8S8EB )
Supported battery type	NCM / LFP/ LTO/ SIBLi-ion/Lifepo4/Lto/SIB)
Single cell voltage collection range	1.5V~4.5V
Undervoltage protects sleep voltage	APP can be customized Settings :1.5-4.5V
Equilibrium method	Time-sharing single channel transfer, point-to-point energy transfer
Reverse protection	Support disorderly power on detection/protection
Equilibrium current	APP can be customized Settings:1A～4A(EK-8S4EB) APP can be customized Settings:1A～8A(EK-8S8EB)
Whether an external power supply is required	No need
Product Size and Weight	L100 x W100 x T17.5(mm)& 192g
Voltage equalization accuracy	APP can be customized Settings :1mV(TYP)
Power failure detection function	Support
Wrong wire protection function	Support
Fault alarm function	Support
Buzzer	APP can be customized Settings
Power dissipation	At equilibrium≈1W,Stop equilibrium≈0.2W
Operating temperature	-20℃ ~ +55℃
Application	High-power energy storage, base station backup power supply,Solar power station

Product Size & Packing List

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

Part Name	Q'ty
4A 8A Bidirectional DC-DC Smart Active Balancer	1pcs
4 Pin 2.0mm Wire 22AWG 30cm	1pcs
5 Pin 2.0mm Wire 22AWG 30cm	1pcs
2*5 Pin 2.0mm Wire 18AWG 30cm	1pcs

Wire Diagram

8S Wiring Diagram

A single equalizer supports 3S-8S.
The following figure shows the installation and wiring method for a 8S battery pack:

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

3S Wiring Diagram

When the total voltage is at least 10V, it can be used for battery packs with fewer than 8 series-connected cells;

leave the unused pins unconnected. Refer to the installation and wiring instructions.

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

15S Cascade Wiring Diagram

When used in a cascaded configuration, there must be at least one battery cell between every two equalizers to serve as a common point for energy exchange. Installation and wiring method:
Take 15S as an example below, the installation and wiring method is as follows:

Wiring Precautions:

1. Installing a balancing board requires a certain level of technical knowledge in electronics.

2. When wiring, first solder the terminal connectors (with wires) to the battery pack, then plug them into the balancer.

When inserting the terminal connectors, ensure the "B-" terminal is connected first; insert the connector on the "B-" side initially.

Follow a sequence of connecting from the smallest (lowest voltage/index) to the largest (highest voltage/index).

FAQ

Q1. Why did we choose you?

* We can provide you with efficient after-sales service, with more than 10 years of strong technical support.

* Products have passed FCC, CE, ROHS and other international standards certification.

* We can provide you with factory price, Welcome you to visit our factory and production process.

Q2. What is your product range (type)?

*We mainly do battery management systems in the fields of power batteries, energy storage batteries and consumer batteries.

*Mainly used for LFP, Li-ino and LTO batteries.

Q3: How do I know which kind of material & type my battery is ?

*Please look the battery body, If the normal voltage of your battery shows 3.2V, The battery is LiFePo4.

*If the normal voltage of your battery shows 3.6V or 3.7V, the battery is Li-ion or Lto battery.

Q4. Do you have minimum order requirements?

Can it be customized? What is the lead time for samples and batches?

*Our minimum order quantity is 1 piece, ODM customization is available.

* 1~3 days delivery of existing samples, 3~10 days delivery of customized samples.

Q5: What if i can't use it?

*Regular products have instructional videos, We can also support online video call guidance from engineers.

Q6. What are your terms of payment?

*We accept wire transfer and cash payment, all negotiable. Payment method :visa, mastercard, T/T, PayPal, APPLE_PAY, GOOGLE_PAY, GC_REAL_TIME_BANK_TRANSFER, RMB

Q7. How do you guarantee the quality?

* All our products are subjected to professional laboratory 100% testing, as well as repeated aging tests.

* Obtained FCC, CE, ROHS and other international standard certification.

* Provide 3 years after-sales warranty service. Free spare units for replace in 3 years.

Q8. How to choose a BMS suitable for our battery?

*Depending on the voltage and current that matches your battery, you can consult our customer service and we will provide it for you equipped with the most suitable battery management system.

Q9. How can i contact you?

*We have 7x24 hours online service, Please leave us a message online.

*You can also contact us by Email, WhatsApp, WeChat, etc(see below). We are so glad to work with you.

If you have any advices or requests, Warmly welcome your consulting.

Mobile & WhatsApp & Wechat: +86 15387469240; Email: kiwi@enerkey.cn

Tags:

Battery Active Balancer

Lithium Battery Balancer

Lipo Battery Balancer

Products Details

Home > Products >

Smart Active Balancer

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

All Category

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Electric Scooter BMS

Charging Station BMS

Heavy-duty Vehicle Smart Active Balancer BMS

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

Brand Name:	Enerkey
Model Number:	EK-8S4EB/EK-8S8EB
MOQ:	500 pieces
Price:	$20.8-$23.8
Packaging Details:	Strong paper box +EVA Foam
Payment Terms:	L/C, D/A, D/P, T/T, Western Union,

Detail Information

Product Description

Detail Information

Place of Origin:

Shenzhen, China

Brand Name:

Enerkey

Certification:

ISO9001/CE/ROHS

Model Number:

EK-8S4EB/EK-8S8EB

Document:

EK-8S4EB&EK-8S8EB-Operation....1.pdf

Product Name:

4A 8A Bidirectional DC-DC Intelligent Active Equalizer

Copper Thickness:

2oz

Application:

Cars, Electric Vehicles, Electric Tricycle

Board Thickness:

1.6mm

Battery Type:

Lithium/Lifepo4/Lto Battery Pack

Battery Strings:

3S~8S

Material:

FR-4 / HASL

Communication Port:

Bluetooth And CAN

Product Size:

L100 X W100 X T17.5mm

Weight With Package:

0.3kg

Minimum Order Quantity:

500 pieces

Price:

$20.8-$23.8

Packaging Details:

Strong paper box +EVA Foam

Delivery Time:

3-5days

Payment Terms:

L/C, D/A, D/P, T/T, Western Union,

Supply Ability:

10000pcs per day

Highlight:

4A 8A Active Equalizer

Bidirectional DC-DC Converter Balancer

3S-8S LiFePO4 Balancer with CAN

Product Description

Enerkey 4A 8A Intelligent Active Equalizer With Bidirectional DC-DC Converter 3S-8S Li-ion/LiFePO4/LTO With CAN

Product Description

Advantages of Bidirectional DC-DC Smart Active Balancer:

1. Powerful balancing capability and rapid balancing speed

2. Enhance security and reliability

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

Technical Parameters

Product model	4A 8A Bidirectional DC-DC Smart Active Balancer for 3-8s (EK-8S4EB / EK-8S8EB )
Supported battery type	NCM / LFP/ LTO/ SIBLi-ion/Lifepo4/Lto/SIB)
Single cell voltage collection range	1.5V~4.5V
Undervoltage protects sleep voltage	APP can be customized Settings :1.5-4.5V
Equilibrium method	Time-sharing single channel transfer, point-to-point energy transfer
Reverse protection	Support disorderly power on detection/protection
Equilibrium current	APP can be customized Settings:1A～4A(EK-8S4EB) APP can be customized Settings:1A～8A(EK-8S8EB)
Whether an external power supply is required	No need
Product Size and Weight	L100 x W100 x T17.5(mm)& 192g
Voltage equalization accuracy	APP can be customized Settings :1mV(TYP)
Power failure detection function	Support
Wrong wire protection function	Support
Fault alarm function	Support
Buzzer	APP can be customized Settings
Power dissipation	At equilibrium≈1W,Stop equilibrium≈0.2W
Operating temperature	-20℃ ~ +55℃
Application	High-power energy storage, base station backup power supply,Solar power station

Product Size & Packing List

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

Part Name	Q'ty
4A 8A Bidirectional DC-DC Smart Active Balancer	1pcs
4 Pin 2.0mm Wire 22AWG 30cm	1pcs
5 Pin 2.0mm Wire 22AWG 30cm	1pcs
2*5 Pin 2.0mm Wire 18AWG 30cm	1pcs

Wire Diagram

8S Wiring Diagram

A single equalizer supports 3S-8S.
The following figure shows the installation and wiring method for a 8S battery pack:

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

3S Wiring Diagram

When the total voltage is at least 10V, it can be used for battery packs with fewer than 8 series-connected cells;

leave the unused pins unconnected. Refer to the installation and wiring instructions.

3S-8S Smart Active Balancer with CAN and Bidirectional DC-DC Converter Intelligent Active Equalizer

15S Cascade Wiring Diagram

Wiring Precautions:

1. Installing a balancing board requires a certain level of technical knowledge in electronics.

2. When wiring, first solder the terminal connectors (with wires) to the battery pack, then plug them into the balancer.

When inserting the terminal connectors, ensure the "B-" terminal is connected first; insert the connector on the "B-" side initially.

Follow a sequence of connecting from the smallest (lowest voltage/index) to the largest (highest voltage/index).

FAQ

Q1. Why did we choose you?

* We can provide you with efficient after-sales service, with more than 10 years of strong technical support.

* Products have passed FCC, CE, ROHS and other international standards certification.

* We can provide you with factory price, Welcome you to visit our factory and production process.

Q2. What is your product range (type)?

*We mainly do battery management systems in the fields of power batteries, energy storage batteries and consumer batteries.

*Mainly used for LFP, Li-ino and LTO batteries.

Q3: How do I know which kind of material & type my battery is ?

*Please look the battery body, If the normal voltage of your battery shows 3.2V, The battery is LiFePo4.

*If the normal voltage of your battery shows 3.6V or 3.7V, the battery is Li-ion or Lto battery.

Q4. Do you have minimum order requirements?

Can it be customized? What is the lead time for samples and batches?

*Our minimum order quantity is 1 piece, ODM customization is available.

* 1~3 days delivery of existing samples, 3~10 days delivery of customized samples.

Q5: What if i can't use it?

*Regular products have instructional videos, We can also support online video call guidance from engineers.

Q6. What are your terms of payment?

*We accept wire transfer and cash payment, all negotiable. Payment method :visa, mastercard, T/T, PayPal, APPLE_PAY, GOOGLE_PAY, GC_REAL_TIME_BANK_TRANSFER, RMB

Q7. How do you guarantee the quality?

* All our products are subjected to professional laboratory 100% testing, as well as repeated aging tests.

* Obtained FCC, CE, ROHS and other international standard certification.

* Provide 3 years after-sales warranty service. Free spare units for replace in 3 years.

Q8. How to choose a BMS suitable for our battery?

*Depending on the voltage and current that matches your battery, you can consult our customer service and we will provide it for you equipped with the most suitable battery management system.

Q9. How can i contact you?

*We have 7x24 hours online service, Please leave us a message online.

*You can also contact us by Email, WhatsApp, WeChat, etc(see below). We are so glad to work with you.

If you have any advices or requests, Warmly welcome your consulting.

Mobile & WhatsApp & Wechat: +86 15387469240; Email: kiwi@enerkey.cn

Tags: