Shenzhen Juyi Science And Trade Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 1000000pcs per day |
| Delivery Time | 1-3days |
| Packaging Details | Strong paper box +EVA Foam |
| Product Name | 2S 20A Lithium ion Battery BMS |
| Copper Thickness | 2oz |
| Application | Commercial energy storage system |
| Board Thickness | 1.6mm |
| PCB Layer | 2 layer |
| Allowable Operating Voltage Range | 0-8.4V |
| Rated Discharge Currenturrent | 20A |
| Peak Starting Current | 100A |
| Used For | Lithium Battery Protection Board |
| Keywords | 2S BMS |
| Base Material | FR-4 |
| Surface Finishing | Lead-free HASL |
| Product Size | L52xW22xT3.6mm |
| Weight with Package | 0.012kg |
| Brand Name | Enerkey |
| Model Number | EK-B2S20AM |
| Certification | ISO9001/CE/ROHS |
| Place of Origin | Shenzhen, China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 1000000pcs per day |
| Delivery Time | 1-3days | Packaging Details | Strong paper box +EVA Foam |
| Product Name | 2S 20A Lithium ion Battery BMS | Copper Thickness | 2oz |
| Application | Commercial energy storage system | Board Thickness | 1.6mm |
| PCB Layer | 2 layer | Allowable Operating Voltage Range | 0-8.4V |
| Rated Discharge Currenturrent | 20A | Peak Starting Current | 100A |
| Used For | Lithium Battery Protection Board | Keywords | 2S BMS |
| Base Material | FR-4 | Surface Finishing | Lead-free HASL |
| Product Size | L52xW22xT3.6mm | Weight with Package | 0.012kg |
| Brand Name | Enerkey | Model Number | EK-B2S20AM |
| Certification | ISO9001/CE/ROHS | Place of Origin | Shenzhen, China |
| High Light | 18650 Lithium Battery BMS ，Hardware BMS Charger Protection Board ，8.4V Lithium Battery BMS | ||
Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, without limitation on the dimensions)
Charging voltage: 8.4V - 9.0V
Continuous discharge current (upper limit): 20A (If the cooling environment is not good, reduce the load current use)
Continuous charge current (upper limit): 10A
In the event of the supply voltage exceeding the maximum permissible value, the charge controller activates the “protection” mode to prevent potential damage to the batteries. To restore the module, it is necessary to re-apply voltage to the input of the BMS board or wait for the charge controller to automatically disable protection. This built-in safety feature enhances the overall reliability of the battery management system.
| Enerkey Lithium Battery Protection Board (BMS) 2S 20A 30A 7.4V 8.4V For Photovoltaic Solar Panels and Industrial Power & Home Energy Storage System and Electric Car and Scooter and Motorcycle
| |||
| Product model | EK-B2S20AS | EK-B2S20AM | EK-B2S30AM |
| Suitable battery strings | 2S | 2S | 2S |
| Product size(mm) | L46xW20xT4 | L52xW22xT3.6 | L58xW22xT4 |
| Weight with box | 0.01kg | 0.012kg | 0.014kg |
| Rated discharge current | Typ 20A | Typ 20A | Typ 30A |
| Peak starting current | Typ 100A | Typ 100A | Typ 100A |
| Over current protection current | Typ 50A | Typ 50A | Min 80A/Typ 90A Max 100A |
| Specical function | 100A high peak starting current power tool | ||
| Suitable battery type | Lithium(NCM) | ||
| Rated working voltage B+B- | Max 8.4V | ||
| P+P- input withstand voltage | Max 33V | ||
| Charging overcurrent protection value | Not limited | ||
| Charge detection voltage | Min 4.225V / Typ 4.28V / Max 4.305V | ||
| Charge detection delay time | Min 0.5S / Typ 1S / Max 1.5S | ||
| Overcharge release voltage | Min 4.03V / Typ 4.05V / Max 4.13V | ||
| Discharge detection voltage | Min 2.17V / Typ 2.25V / Max 2.33V | ||
| Discharge detection delay time | Min 20ms / Typ 100ms / Max 150ms | ||
| Discharge release voltage | Min 2.8V / Typ 2.95V / Max 3.05V | ||
| Conditions for lifting protection | Disconnect external load or charge self-recovery | ||
| Overcurrent detection voltage | Typ 0.1V | Min 0.175V / Typ 0.2V Max 0.225V | |
| Overcurrent protection time | Typ 100MS | Min 5S / Typ 10S Max 15S | |
| Conditions for lifting protection | Disconnect external load or charge self-recovery | ||
| Short circuit protection current | Typ 100A | Min 45A/Typ 50A Max 55A | |
| Detection delay time | Typ 250μS | Min 150μS/Typ 250μS Max 400μS | |
| Conditions for lifting protection | Disconnect external load or charge self-recovery | ||
| Main circuit on-state resistance | Typ 5mΩ / Max 9mΩ | Typ 2mΩ / Max 2.5mΩ | |
| Normal working current consumption | Typ 5μA / Max 9μA | ||
| Current consumption during sleep | Max 0.1μA | ||
| Operating Temperature | -40℃ ~ +85℃ | ||
Wiring precautions:
1. Installing the protective board requires a certain amount of technical electronic knowledge.
2. When wiring, first connect the B- wire at the soldering pad position to the total negative terminal of the battery (the B- wire should be soldered to a short and thick wire) and solder the wired terminal to the battery pack first, and then insert the protective plate.
3. The connection between the battery terminal B- and the protection board terminal B- should be short and thick, otherwise it will cause the protection board to charge and discharge in advance and malfunction.
4. You need to use thick wires when wiring P+/P-. Wires that are too thin and too long will burn the board!
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.
Company Details
Business Type:
Manufacturer
Year Established:
2015
Total Annual:
10000000-50000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Shenzhen Juyi Science And Trade Co., Ltd. and EnerKey BMS Technology Co., Ltd. is a new energy enterprise engaged in the research and development of lithium battery protection panels (intelligent BMS). EnerKey BMS specializes in the field of power solution development, has accumulated m... Shenzhen Juyi Science And Trade Co., Ltd. and EnerKey BMS Technology Co., Ltd. is a new energy enterprise engaged in the research and development of lithium battery protection panels (intelligent BMS). EnerKey BMS specializes in the field of power solution development, has accumulated m...
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