The battery active balancing board has significant technical advantages over passive balancing:
High energy usage efficiency: Active balancing reduces energy loss by transferring energy instead of consuming excess power.
Less heat generation: Since it does not directly consume power, active balancing generates less heat, extending the service life of the battery.
Fast balancing speed: Active balancing can complete power balancing in a short time, improving the overall efficiency of the battery pack.
Wide range of application: Active balancing has lower requirements on battery consistency and is suitable for various battery pack configurations.
Application scenarios
With the widespread application of lithium-ion batteries in the field of new energy, active balancing technology has gradually become mainstream:
Energy storage system: In the energy storage system, active balancing technology can effectively manage the consistency of the battery pack and improve the overall performance and reliability of the system.
Electric vehicles: In electric vehicles, active balancing can extend battery life and improve vehicle endurance and safety.
Smart Grid: In smart grids, active balancing technology can optimize energy management, reduce operation and maintenance costs, and improve the economy and environmental protection of the system
Technical Parameters
| EnerKey BMS Active Balancer 5A 3S 4S 5S 6S 7S 8S 14S 16S 18S 19S 20S 21S LFP LTO LI-ION lifepo4 Balancer Capacitor Balancer |
| Product strings | | | |
| Suitable strings | | | |
| Product Size(mm) | | L66*W46*T16 | L69*W58*T16 |
| Weight with box | | | |
| Battery Type | NCM/LFP | NCM/LFP | NCM/LFP/LTO |
| Suitable capacity | |
| | Support balanced cascading for battery packs, for example , it can cascade for 11S , 24S ,36S , 48S....and so on |
| Single cell voltage collection range | NCM/LFP version : 2.7V-4.2V |
| LTO version : 1.8-4.2V |
| Undervoltage protects sleep voltage | |
| LTO version＜1.8V |
| Equilibrium method | Patented (Patent No.: ZL 2019 1 1259513.3) balanced architecture Fit capacitor method, the entire battery pack is balanced at the same time.
Connect to the battery pack for automatic balancing (default). You can add a switch to manually turn on or off balancing. |
| Equilibrium current | 0.1V Differential pressure 1A Balanced current, |
| the differential pressure is proportional to the balanced current, |
| the maximum allowable operating current is 5.5A |
| Voltage equalization accuracy | |
| External power supply | No need for an external power supply, |
| relying on the internal energy transfer of the battery to achieve sdjacent equalization. |
| Quiescent operating current | 7mA, the total string draws power |
| Sleep standby current | |
| Operating Temperature | |
Packing List
Wire connect
A single EK-C4S5A supports the use of 3s and 4s string battery packs. The wiring method is as follows:
EK-C4S5A supports cascading battery packs. Fox exmple, 2pcs of 4s cascade to 7s, see below drawing:
NOTE:As shown in the figure above,there can be multiple common ends of energy exchangeso that the efficiency of equilibrium will be higher;It is also possible to use only one common end of theenergy exchange atthejunction of two modules.The other free feet are suspended, and it is best todistribute the number of strings equally on each board.If you need the cascade diagram for more strings, Please contact our online service, Thanks.
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.
Noted: We are source manufacturer, We have own brand for "EnerKey",We can customized product as your requirement(Voltage, Wire,Etc) .
We can provide you competitive price in the market if you have bulk order, Please don't hesitate to contact us.
Mobile & WhatsApp & Wechat: +86 15387469240; Email: kiwi@enerkey.cn
