Active balancing is also called non-energy dissipative balancing.
Its principle is to transfer the energy in the high-energy cell to
the low-energy cell during the charge and discharge cycle, so that
the charge in the battery PACK is redistributed, thereby shortening
the charging time and extending the discharge time. In terms of
application scenarios, active balancing is more suitable for
large-capacity and high-number lithium battery pack applications.
Active balancing uses the principle of energy transfer and
distribution, so the energy utilization rate is higher than that of
passive balancing.
In practical applications, active balancing technology is also
widely regarded as more efficient and reasonable. For example,
Enerkey's self-developed bidirectional DC-DC active balancing chip
uses advanced intelligent algorithms to quickly and effectively
compensate for the differences in battery packs, ensure battery
consistency, extend the service life of the battery pack and the
mean time between failures, and effectively improve the economic
benefits of the product's entire life cycle.
Technical Parameters
| Product model | 4A Smart Active Balancer for 2-24s (EK-24S4EB) |
| Supported battery type | NCM / LFP/ LTO(Li-ion/Lifepo4/Lto) |
| Single cell voltage collection range | |
| Undervoltage protects sleep voltage | APP can be customized Settings :1.5-4.2V |
| 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 |
| Whether an external power supply is required | When the total battery system voltage is below 25V,
An external booster module or an external power supply is required. |
| Voltage equalization accuracy | APP can be customized Settings :1mV(TYP) |
| Wire cascading | |
| Power failure detection function | |
| Wrong wire protection function | |
| Fault alarm function | |
| Buzzer | APP can be customized Settings |
| Power dissipation | At equilibrium≈1W,Stop equilibrium≈0.5W |
| Operating temperature | |
Application
| Electric toys, electric balance car/bicycle |
Packing List
Use Manual
Wiring Diagram
When used for battery packs with less than 24 string cells in
series, the empty pin is suspended.
When used for battery packs with a total voltage of less than 25V,
an external DC power supply is required
EK-24S4EB supports cascading use, and at least one battery between
every two equalizers is the "common end of energy exchange". The
following uses the 32S as an example to describe how to install and
connect cables:
Notice:
1.When used in cascade, there is at least one "energy exchange
commonend" between every two equalizers. When welding, please note
whetherthe connection here is correct.
2.During cascading use, please check whether the wiring is
wrongrepeatedly.lf it cannot be used after connection, please
contactafter-sales personnel to consult the corresponding cascade
diagram.
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.
