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 | 3S 4S 50A Lithium Battery BMS |
| Copper Thickness | 2oz |
| Application | Solar Panels Energy Storage Systems |
| Board Thickness | 1.6mm |
| Battery Type | Ternary Lithium Battery |
| Allowable Operating Voltage Range | 0-30V |
| Rated Discharge Currenturrent | 50A |
| Peak Starting Current | 100A |
| Used For | Lithium Battery Protection Board |
| Keywords | 3S 4S BMS |
| Base Material | FR-4 |
| Surface Finishing | Lead-free spray tin |
| Product Size | L36xW36xT8mm |
| Weight with Package | 0.02kg |
| Brand Name | Enerkey |
| Model Number | EK-B3Sr4S50AR |
| 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 | 3S 4S 50A Lithium Battery BMS | Copper Thickness | 2oz |
| Application | Solar Panels Energy Storage Systems | Board Thickness | 1.6mm |
| Battery Type | Ternary Lithium Battery | Allowable Operating Voltage Range | 0-30V |
| Rated Discharge Currenturrent | 50A | Peak Starting Current | 100A |
| Used For | Lithium Battery Protection Board | Keywords | 3S 4S BMS |
| Base Material | FR-4 | Surface Finishing | Lead-free spray tin |
| Product Size | L36xW36xT8mm | Weight with Package | 0.02kg |
| Brand Name | Enerkey | Model Number | EK-B3Sr4S50AR |
| Certification | ISO9001/CE/ROHS | Place of Origin | Shenzhen, China |
| High Light | Lithium Battery BMS 4S 50A ，Electronic Car Lithium Battery BMS | ||
Enerkey BMS 3S 4S 50A Lithium Battery BMS Board Li-Ion Battery Protection Board For Electronic Car
This lithium battery protection board (EK-B3Sr4S50AR) adopts 3S and 4S integrated solutions. The required number of strings can be flexibly selected according to the wiring diagram provided by our company.
It is mostly used in the battery packs of electric scooters, electric bicycles, power tools, car washers, small household appliances, model aircraft and other products. Mainly plays the role of protecting the battery pack.
Because overcharging, over-discharge, and short circuits of lithium batteries may cause the battery to be scrapped. The BMS plays a protective role. During use of the lithium battery, every time it is overcharged, over-discharged, or short-circuited, the battery will be reduced. life.
In serious cases, the battery will be scrapped directly! If there is no lithium battery protection board, directly short-circuiting or overcharging the lithium battery will cause the battery to bulge, and in severe cases, leakage, decompression, explosion, or fire may occur.
In general, the BMS acts as a bodyguard to ensure the safety of the lithium battery.
| Enerkey Lithium Battery Protection Board (BMS) 3S 4S 6S 50A 12V 24V For Photovoltaic Solar Panels and Industrial Power & Home Energy Storage System and Electric Car and Scooter and Motorcycle | ||
| Product model | EK-B3Sr4S50AR | EK-B6S50AR |
| Suitable battery strings | 3S and 4S | 6S |
| Product size(mm) | L36*W36*T8 | L36*W36*T8 |
| Weight with box | 0.02kg | 0.022kg |
| Suitable battery type | Lithium(NCM) | |
| Rated discharge current | Typ 50A | |
| Rated working voltage B+B- | Max 30V | |
| Peak starting current | Typ 100A | |
| P+P- input withstand voltage | Max 40V | |
| Charging overcurrent protection value | Not limited | |
| Charge detection voltage | Min 4.2V / Typ 4.225V / Max 4.25V | |
| Charge detection delay time | Min 0.5S / Typ 1S / Max 1.3S | |
| Overcharge release voltage | Min 4.0V / Typ 4.005V / Max 4.05V | |
| Discharge detection voltage | Min 2.65V / Typ 2.7V / Max 2.75V | |
| 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 | |
| Over current protection current | Min 90A / Typ 100A / Max 110A | |
| Overcurrent protection time | Min 0.7S / Typ 1S / Max 1.3S | |
| Conditions for lifting protection | Disconnect external load or charge self-recovery | |
| Short circuit protection current | Typ 100A | |
| Detection delay time | Min 150μS / Typ 250μS / Max 400μS | |
| Conditions for lifting protection | Disconnect external load or charge self-recovery | |
| Main circuit on-state resistance | Typ 1.7mΩ / Max 2mΩ | |
| Normal working current consumption | Typ 10μA / Max 15μA | |
| Current consumption during sleep | Max 2.5μA | |
| 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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