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Address: Area A, 9th Floor, Building G, Guancheng Low Carbon Industrial Park, Shangcun Community, Gongming Street, Guangming District, Shenzhen, China, 518106
Contact name:Kiwi Xiao
Shenzhen Juyi Science And Trade Co., Ltd. |
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During the use of lithium batteries, overcharging, over-discharging and over-discharging will affect the service life and performance of the battery. In severe cases, it will cause the lithium battery to burn or explode. There have been cases of mobile phone lithium batteries exploding and causing casualties.
IT often occurs and the recall of lithium battery products by mobile phone manufacturers. Therefore, each lithium battery must be equipped with a safety protection board, which consists of a dedicated IC and several external components.
Through the protection loop, it can effectively monitor and prevent damage to the battery, and prevent combustion and explosion caused by overcharge, overdischarge and short circuit. Waiting for danger A short circuit in a lithium battery is very dangerous.
The short circuit will cause the battery to generate a large current and a large amount of heat, which will seriously damage the service life of the battery. In more serious cases, the heat generated will cause the battery to burn and explode.
The protective function of the lithium battery customized protection board is that when a large current is generated, the protection board will be closed instantly, so that the battery will no longer be powered and no heat will be generated.
Lithium battery protection board functions: overcharge protection, discharge protection, overcurrent protection, short circuit protection. The protection board of the integrated solution also has disconnection protection. In addition, balancing, temperature control and soft switching functions can be optional.
Enerkey Lithium Battery Protection Board (BMS) 3S 50A 12.6V For Photovoltaic Solar Panels and Industrial Power & Home Energy
Storage System and Electric Car and Scooter
and Motorcycle | ||
| Product model | EK-B3S50A | EK-3S50A-BLC |
Suitable battery strings | 3S | 3S |
| Product size(mm) | L130xW45xT7.3 | L130xW45xT7.3 |
| Weight with box | 0.02kg | 0.02kg |
| Specical function | without balancing | Balanced current 80mA |
| Suitable battery type | Lithium(NCM) | |
| Rated discharge current | Typ 50A | |
| Rated working voltage B+B- | Max 30V | |
| Peak starting current | Typ 120A | |
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 110A / Typ 120A / Max 150A | |
| 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 150A | |
| 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 1mΩ / Max 1.5mΩ | |
| 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 pad position to
the total negative terminal of the battery (the B- wire should be
soldered to a short thick wire).
And first solder the wired terminals to the
battery pack, 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.
You need to use thick wires when wiring P+/P-.
Wires that are too thin and too long will burn the board!
4. After connecting the battery, please pay attention to the
insulation protection of the product to avoid short circuit when
the power is on;
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.
