Electric Car Lithium Battery BMS 7S 30A 25.9V 29.4V Li Ion Battery Pack BMS
Brand Name:Enerkey
Certification:ISO9001/CE/ROHS
Model Number:EK-B7S30A
Minimum Order Quantity:10pieces
Delivery Time:1-3days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Location:
Shenzhen China
Address:
Area A, 9th Floor, Building G, Guancheng Low Carbon Industrial Park, Shangcun Community, Gongming Street, Guangming District, Shenzhen, China, 518106
Supplier`s last login times:
within 39 hours
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Product Details
Enerkey Lithium Battery BMS Board 7S 30A 25.9V 29.4V Li-Ion Battery Pack BMS For Electric Car
Product Description
The differences between an 18650 lithium battery with battery BMS and without BMS are as follows:
1. The height of the battery core without a board is 65mm, and the height of the battery core with a board is 69-71mm.
2. Discharge to 20V. If the battery does not discharge when it reaches 2.4V, it means there is BMS.
3. Touch the positive and negative stages. If there is no response from the battery after 10 seconds, it means it has BMS. If the battery is hot, it means there is no BMS.
Because the working environment of lithium batteries has special requirements. It cannot be overcharged, over-discharged, overtemperature, or overcurrent charged or discharged. If there is, it will explode, burn, etc., the battery will be damaged, and it will also cause a fire. and other serious social problems.
The main function of the lithium battery BMS is to protect the cells of rechargeable batteries, maintain safety and stability during battery charging and discharging, and play an important role in the performance of the entire lithium battery circuit system.
Technical Parameters
Enerkey Lithium Battery Protection Board (BMS) 6S 7S 30A 24V 36V For Photovoltaic Solar Panels and Industrial Power & Home Energy
Storage System and Electric Car and Scooter and Motorcycle | ||
| Product model | EK-B6S30A | EK-B7S30A |
Suitable battery strings | 6S | 7S |
| Product size(mm) | L62.5xW23xT7.3 | L62.5xW23xT7.3 |
| Weight with box | 0.017kg | 0.017kg |
| Specical function | NTC(option) | |
| Suitable battery type | Lithium(NCM) | |
| Rated discharge current | Typ 25A / Max 30A | |
| Rated working voltage B+B- | Max 30V | |
| Peak starting current | Typ 60A | |
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 20A / Typ 23A / Max 25A | |
| 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 40A | |
| 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 9mΩ / Max 10mΩ | |
| Normal working current consumption | Typ 10μA / Max 15μA | |
| Current consumption during sleep | Max 2.5μA | |
Operating Temperature | -40℃ ~ +85℃ | |
Size $ Packing List
Wire Diagram
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!
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
Electric Car Lithium Battery BMS 7S 30A 25.9V 29.4V Li Ion Battery Pack BMS
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