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| Brand Name: | Enerkey |
| Model Number: | EK-C5S5A |
| MOQ: | 20 pieces |
| Price: | $7.24-$9.32 |
| Packaging Details: | Strong paper box +EVA Foam |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
1. Working voltage: 2.7V-4.2V, suitable for NCM Ternary polymer lithium battery (Li-ion), lithium iron phosphate battery (LiFePO4).
2. Working principle: Flycap-capacitor transfer charge transporter, Balancer board is connected to the battery to start the balance work, using the original brand new ultra-low internal resistance MOS, 2OZ copper thickness PCB,
3. Balance current 0-5.5A,the more balanced the battery current is Small, reserved for the dormant switch wiring position, the dormant power-off mode working current is less than 0.1mA, and the balance voltage accuracy is within 5mv!
During charging, the strongest cell will determine the cut-off voltage of the entire pack. Therefore, the low-capacity cells will be overcharged. Similarly, while discharging the low-capacity cells will be over-discharged.
The overcharging and over-discharging of a single cell depreciate the performance of other cells as well.Therefore, LiFePO4 battery balancing is required to maintain the performance level of all cells and avoid overcharging and over-discharging.
There are multiple ways to achieve an active balancing function for LiFePO4 batteries. These ways differ in the design of the circuit. The common circuit designs are:
Inductor-based Circuit
Single Inductor Circuit: Cheap cell balancing circuit option. It is also one of the smallest sizes.
Multiple Inductor Circuit: More expensive than single inductor circuit. However, the balancing speed is faster. It also has better efficiency.
Transformer-based Circuit
Single Transformer Circuit: Faster than inductor-based circuits. There is a presence of little magnetic losses.
Multiple Transformer Circuit: Faster cell balancing. However, they are costly, and the circuitry is very complex.
Capacitor-based Circuit
Single Capacitor Circuit: A single capacitor circuit uses one capacitor for the entire battery pack. Therefore, a lot of switches are required for controlling the charging voltage of each cell. In addition, it needs an intelligent system to monitor the switching function.
Multiple Capacitor Circuit: There are a number of capacitors for every battery cell. The charging voltage is maintained by choosing the appropriate capacitor for unequal voltage distribution. There is no need of complex sensors and controls.
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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
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Product strings
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3S
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4S
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5S
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Suitable strings
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3S
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3-4S
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4-5S
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Product Size(mm)
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L66*W35*T16
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L66*W46*T16
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L69*W58*T16
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Weight with box
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0.12kg
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0.13kg
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0.15kg
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Battery Type
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NCM/LFP
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NCM/LFP
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NCM/LFP/LTO |
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Suitable capacity
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30ah-300ah
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Balanced Cascading
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Support balanced cascading for battery packs, for example , it can cascade for 11S , 24S ,36S , 48S....and so on
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Single cell voltage collection range
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NCM/LFP version : 2.7V-4.2V
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LTO version : 1.8-4.2V
|
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Undervoltage protects sleep voltage
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NCM/LFP version＜2.7V
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||
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LTO version＜1.8V
|
|||
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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. |
||
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Equilibrium current
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0.1V Differential pressure 1A Balanced current,
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the differential pressure is proportional to the balanced current,
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the maximum allowable operating current is 5.5A
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Voltage equalization accuracy
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5mV (typical value)
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External power supply
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No need for an external power supply,
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relying on the internal energy transfer of the battery to achieve sdjacent equalization.
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| Quiescent operating current | 7mA, the total string draws power | ||
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Sleep standby current
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0.1mA(typical value)
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Operating Temperature
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-20℃ ~ +60℃
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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.
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.
|
| Brand Name: | Enerkey |
| Model Number: | EK-C5S5A |
| MOQ: | 20 pieces |
| Price: | $7.24-$9.32 |
| Packaging Details: | Strong paper box +EVA Foam |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
1. Working voltage: 2.7V-4.2V, suitable for NCM Ternary polymer lithium battery (Li-ion), lithium iron phosphate battery (LiFePO4).
2. Working principle: Flycap-capacitor transfer charge transporter, Balancer board is connected to the battery to start the balance work, using the original brand new ultra-low internal resistance MOS, 2OZ copper thickness PCB,
3. Balance current 0-5.5A,the more balanced the battery current is Small, reserved for the dormant switch wiring position, the dormant power-off mode working current is less than 0.1mA, and the balance voltage accuracy is within 5mv!
During charging, the strongest cell will determine the cut-off voltage of the entire pack. Therefore, the low-capacity cells will be overcharged. Similarly, while discharging the low-capacity cells will be over-discharged.
The overcharging and over-discharging of a single cell depreciate the performance of other cells as well.Therefore, LiFePO4 battery balancing is required to maintain the performance level of all cells and avoid overcharging and over-discharging.
There are multiple ways to achieve an active balancing function for LiFePO4 batteries. These ways differ in the design of the circuit. The common circuit designs are:
Inductor-based Circuit
Single Inductor Circuit: Cheap cell balancing circuit option. It is also one of the smallest sizes.
Multiple Inductor Circuit: More expensive than single inductor circuit. However, the balancing speed is faster. It also has better efficiency.
Transformer-based Circuit
Single Transformer Circuit: Faster than inductor-based circuits. There is a presence of little magnetic losses.
Multiple Transformer Circuit: Faster cell balancing. However, they are costly, and the circuitry is very complex.
Capacitor-based Circuit
Single Capacitor Circuit: A single capacitor circuit uses one capacitor for the entire battery pack. Therefore, a lot of switches are required for controlling the charging voltage of each cell. In addition, it needs an intelligent system to monitor the switching function.
Multiple Capacitor Circuit: There are a number of capacitors for every battery cell. The charging voltage is maintained by choosing the appropriate capacitor for unequal voltage distribution. There is no need of complex sensors and controls.
|
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
|
3S
|
4S
|
5S
|
|
Suitable strings
|
3S
|
3-4S
|
4-5S
|
|
Product Size(mm)
|
L66*W35*T16
|
L66*W46*T16
|
L69*W58*T16
|
|
Weight with box
|
0.12kg
|
0.13kg
|
0.15kg
|
|
Battery Type
|
NCM/LFP
|
NCM/LFP
|
NCM/LFP/LTO |
|
Suitable capacity
|
30ah-300ah
|
||
|
Balanced Cascading
|
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
|
NCM/LFP version＜2.7V
|
||
|
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
|
5mV (typical value)
|
||
|
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
|
0.1mA(typical value)
|
||
|
Operating Temperature
|
-20℃ ~ +60℃
|
||
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.
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.
Address
Area A, 9th Floor, Building G, Guancheng Low Carbon Industrial Park, Shangcun Community, Gongming Street, Guangming District, Shenzhen, China, 518106
Tel
86--15387469240
